WERA_OLD27: Potato Variety Development

(Multistate Research Coordinating Committee and Information Exchange Group)

Status: Inactive/Terminating

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SAES-422 Reports

Annual/Termination Reports:

[05/20/2011] [03/12/2012] [03/25/2013] [09/23/2014] [03/27/2005] [04/01/2015]

Date of Annual Report: 05/20/2011

Report Information

Annual Meeting Dates: 02/01/2011 - 02/01/2011
Period the Report Covers: 01/01/2010 - 12/01/2010

Participants

Bain, Peggy Univ. of Idaho mbain@uidaho.edu;
Bragg, Jeff Potandon jbragg@potandon.com;
Brandt, Tina Univ. of Idaho brandt@kimberly.uidaho.edu;
Brown, Chuck USDA/ARS chuck.brown@ars.usda.gov;
Charlton, Brian OSU-KBREC brian.a.charlton@oregonstate.edu;

Culp, Darrin OSU-KBREC darrin.culp@oregonstate.edu;

Debons, Jeanne PVMI jeannedebons@msn.com;
French, Allan Simplot-NAFG allan.french@simplot.com;
Goeden, Bob Lamb Weston bob.goeden@conagrafoods.com;
Gupta, Sanjay Univ. of Idaho sgupta@uidaho.edu;
Goktepe, Fahrettin OSU-Hermiston fahrettin.goktepe@oregonstate.edu;

Hiles, Chris WSU cdhiles@wsu.edu;
Holden, Zach WSU zholden@wsu.edu;
Holm, David Colorado St. spudmkr@lamar.colostate.edu;
Huber, Brian Heinz brian.huber@us.hjheinz.com;

Knowles, Rick WSU rknowles@wsu.edu;
Koym, Jeff ATM j-koym@tamu.edu;
Lamm, Bob Process Solutions blamm@fiberpipe.net;

Martin, Mel Simplot mel.martin@simplot.com;
Miller, Creighton TAMU jcmillerjr@tamu.edu;
Novy, Rich ARS-Aberdeen Rich.Novy@ars.usda.gov;
Pavek, Mark WSU mjpavek@wsu.edu;
Scheuring, Douglas Texas A & M d-scheuring@tamu.edu;
Schneider, Brian ARS-Aberdeen Brian.Schneider@ars.usda.gov;

Stark, Jeff Univ. of Idaho jstark@uidaho.edu;
Thill, Don Univ. of Idaho dthill@uidaho.edu;
Thornton, Mike Univ. of Idaho miket@uidaho.edu;
Thornton, Robert Ag Bus. Consulting thornton@wsu.edu;
Whitworth, Jonathan ARS-Aberdeen Jonathan.Whitworth@ars.usda.gov;
Wilson, Rob UC-IREC rgwilson@ucdavis.edu;

Brief Summary of Minutes

Minutes
2011 Western Regional Annual Meeting
Best Western Vista Inn
Boise, ID
Tuesday, February 1, 2011

Chair: Zach Holden

Secretary: Sanjay Gupta

Call to Order: Zach Holden called meeting to order at 1:00 pm.

Introductions: Introductions were already made during the Tri-State Meeting.

Approval of Minutes: A motion to accept the minutes was made by Dave Holm and seconded by Creighton Miller. The motion passed unanimously.

State Reports:
Washington, Oregon and Idaho: Reports were presented in the Tri-State Meeting earlier in the day and did not have anything to add (see attached report).

Texas: Creighton Miller presented the Texas report. He said that PVP was granted on Stampede Russet and Rio Rojo in 2010 (see attached report).

Colorado: Dave Holm presented the Colorado report. He said that CO95051-7W is going to be released. Purple Majesty is being licensed by a company out of the United Kingdom (see attached report).

California: Rob Wilson presented the California report. He reported that the Tule Lake location is a site for the Western Regional Trial, the Southwest Regional Trial, as well as chip seed spacing and pest management trials. Rob commented that although the budgetary situation is not good in California, they have been able to continue operations at previous capacity. Chuck Brown asked if the position held by Ron Voss will be filled. Rob said there is a lot of support for the position and that it may potentially be refilled in the future (see attached report).

PVP and PVMI Updates: Jeanne Debons updated the committee about activities of PVMI.
Visit website at http://www.pvmi.org/ for more information. Jeanne Debons updated the committee about activities of PVMI.

Results were reported for the 2010 Western Regional trials.

Early and Late Trials (Rich Novy): Rich Novy shared the Early and Late trial results. Rich said that data from the Springlake, Texas was reported but not used in the multi-location averages due to the hail and psyllid damage to the crop at that location.

Post Harvest Results (Rick Knowles): Rick Knowles presented the post harvest results.

Regional Chipping Trial (Dave Holm): Dave Holm presented the results from the Regional Chip Trial.

Red/ Specialty Trial (Brian Charlton): Brian Charlton presented the Red/Specialty Trial results.

Disposition of Entries:
Russet Trials: The following entries graduated from the Western Regional Trial: A97066-42LB, A0008-1TE, CO98067-7RU, PA99N2-1, and PA99N82-4. The following entries were advanced into the Western Regional Trial from the Tri-State: A01025-4, A02060-3TE, and AO02183-2. The returning and new entries include: A98345-1, A00324-1, A01010-1, AC99375-1RU, AO00057-2, AO96305-3, AOTX96265-2Ru, CO99053-3RU, CO99053-4RU, CO99100-1RU, PA00N14-2, A01025-4, AO01114-4, AO02060-3, AO02183-2, and A02060-3TE.

Red/Specialty Trials: The following entries graduated from the Western Regional Red/Specialty Trial: COTX94216-1R, COTX94218-1R, A99326-1PY, POR03PG80-2, A00286-3Y, and CO00412-5W/Y. The following entries were advanced into the Western Regional Specialty/Red Trial from the Tri-State Specialty/Red Trial: OR04131-2, POR05PG56-1, and OR04036-5. The returning and new entries are: CO99076-6R, CO99256-2R, A99331-2RY, A99433-5Y, ATC00293 -1W/Y, CO01399-10P/Y, CO00291-5R, OR04036-5, ATTX01178-1R, ATTX98453-6R, ATTX98510-1R/Y, and COTX01403-4R/Y.

Chip Trials: No entries graduated from the Western Regional. The returning and new entries include: A01143-3C, CO00188-4W, CO00197-3W, CO00270-7W, AC01151-5W, CO02024-9W, CO02033-1W, and CO02321-4W.

Seed Supply and Shipping List: Seed supplies and shipping lists were discussed. Final decisions were delayed pending each states decision on seed acceptance.

Additional Business

Donn Thill, Director of IAES and Administrative Advisor for WERA 027, discussed the status of the Tetonia Research and Extension Center and that it will remain open, due to partnerships with several crop commissions. It will operate at a reduced capacity. Also discussed were financial challenges of operating the tissue culture lab at the UI Moscow campus. A fee based system will be implemented at the tissue culture lab. PVMI agreed to draft a letter to be sent to the Tri State parties to address tissue culture variety clean up, plantlet and mini tuber production fees.

Brian Schneider asked if the 50 pound regional trial seed increases will continue. Brian Charleton said he will do that.

2012 Meeting Date and Location: The 2012 meeting site will be Denver, CO. Future meeting sites will be rotated between the Tri-Cities,WA Boise and Denver .

Election of Secretary: Rob Wilson was elected Secretary

Meeting was adjourned at 4:30 pm.

Minutes Attachment:

Attachment

Accomplishments

Washington State University 2010 Tri-State/Regional Report MJ Pavek, NR Knowles, ZJ Holden, CD Hiles Process demand has declined along with acreage restrictions encouraged by the United Potato Cooperative. WA potato production fell by 30,000 acres between 2007 and 2010 (165,000 to 135,000 A). There are likely other factors affecting potato demand, none-the-less, we hope to see the Washington acreage increase in the near future. The interest in new varieties is on the rise. Over 18% of all seed lots in the 2010 WSU Seed Lot Trial were varieties that were newly developed or are new to the region. This is a record high and is up over 7% from just 3 years ago. In 1962, only eight varieties were entered into the trial, in 2002 23 varieties and in 2010 there were forty two entries. Varieties developed by the Northwest Potato Variety Development Program/PVMI accounted for 47% of the seed lots entered into the 2010 trial and included: Premier Russet, Classic Russet, Alpine Russet, Blazer Russet, Clearwater Russet, Highland Russet, Alturas, Ranger, Umatilla, and Gallatin Russet, Defender, and A0008-1TE. We are conducting N rate trials on Clearwater, Alpine, A0008-1TE, Sage, Owyhee, Classic, Ranger, Umatilla, and Russet Burbank. We conducted N-timing trials on Premier, Ranger, Umatilla, Blazer, and A0008-1TE. We are looking at in-row spacing of Clearwater and Premier. We hope to include phosphorous research on new cultivars in the hopes of identifying more efficient varieties. We conducted our largest Tri-State 10-hill and PYT trials this year and hope to continue the early testing in the future. Results from our research will be converted into PVMI cultural management guides when research is complete. We, as other Universities, are experiencing budget issues. Oregon State University 2010 Tri-State/Regional Report F Goktepe, S Yilma, B Charlton, C Shock, D Hane, D Culp As part of the Tri-State potato variety development program, the main objectives of the Oregon State University potato variety development and breeding program are selecting, evaluating and releasing new varieties, adaptive to the local conditions for both fresh and processing markets. The USDA/ARS, Aberdeen breeding program provides 80-85% of russet processing & fresh crosses each year as True Potato Seed (TPS). Breeding efforts at Oregon State University complement and enhance those of the USDA/ARS program in Aberdeen, ID by incorporating disease and pest resistances using multi-trait genotypic recurrent selection, as illustrated by the publication of marker-assisted selection (MAS) efforts for PVY resistance (Ottoman et al., and Vales et al., 2010) and the evaluation of genetic diversity in Tri-state clones (Karaagac et al., 2010). Introgression of genetic resistance focused on viruses, late blight, tuberworm, and rootknot and stubby-root nematodes. New molecular markers were added this past year to screen for resistance to Columbia root-knot nematode, late blight (RBgene), PVX, and potato cyst nematode. As expected, germplasm enhancement is a continuous application utilizing traits of interest from various sources including but not limited to wild species and land races. In 2010, the Oregon group conducted multiple field trials at four locations (Hermiston, Powell Butte, Corvallis and Klamath Falls). A total of 83,019 single hills were planted at Powell Butte and Klamath Basin R&E Center (KBREC). Approximately 473 clones were retained at Powell Butte and 291 at KBREC for further evaluation. Approximately, 50,000 seedling tubers were generated in Corvallis greenhouses with approximately 80% TPS derived from USDA/ARS Aberdeen, ID crosses and the remainder originating from USDA/ARS Prosser, WA and OSU. The largest tuber (A-size) from each tuberling was reserved for planting at Klamath Falls. The B-sized clones will be shared among collaborative institutes. The Oregon group led the release of two Tri-state varieties Sage Russet (AO96164-1) is a medium maturing high yield with a high proportion of U.S. No. 1 tubers, and excellent processing quality, & AmaRosa (POR01PG22-1) is a medium maturing fingerling potato clone with red skin and medium red flesh. Four advanced clones (POR01PG20-12, AO96141-3, POR03PG23-1 and POR02PG37-2) were recommended for 2011 releases. In addition, disease/pest/abiotic stress resistance trials were performed at Corvallis (late blight), Hermiston (Verticillium wilt/early die, PVY, PLRV, and tuber worm), and Klamath Falls (root-knot nematode). Due to recent budget constraints and changes in potato personnel a major restructuring of the Oregon variety development program is underway. As a result, Corvallis will focus on seedling tuber production, screening germplasm for resistances using molecular markers, and late blight screening. Hermiston and Klamath Falls will focus on variety development activities while Malheur will conduct early generation screening to abiotic stresses. Single-hill selection and subsequent seed increase will move from Powell Butte to Klamath Falls. The major breeding and selection activities will be continued with specific goals by following basic breeding principles. The major accomplishments of each station are outlined below: CSS: Made more than 270 successful crosses between promising long russets, chippers, reds and specialties clones and parental clones with cold sweetening resistance and known resistance to tuber worm, PVY, PLRV, late blight, corky ring spot, and nematodes. Produced more than 50,000 seedling tubers from TPS in Corvallis greenhouses for Oregon single-hill screening for planting in 2011. In addition, 40,000 B size seedling tubers will be sent to Texas A&M University and to other collaborative institutions. Evaluated agronomic and quality traits of Western regional red and specialty, PYT2 and statewide specialty trials in Corvallis. Evaluated potato sensory quality of specialty clones in statewide trials. Evaluated foliar and tuber late blight resistance of 367 potato clones in artificially inoculated trials in Corvallis. Two hundred seventy three early generation selections were evaluated in 12- and 4-hills plots. Fifty one advanced breeding selections and named varieties and 43 varieties from the National Late Blight Evaluation Program were evaluated in replicated trials. Maintained 85 potato accessions in the disease-free clone bank and produced ~300 lbs of disease-free pre-nuclear minitubers for research purpose. Performed molecular marker evaluations for PVY resistance on 176 single hills clones selected in 2009. A total of sixty three resistant clones with the PVY resistant gene Ryadg and with the PVY resistance gene Rysto were identified for further selection & testing. Screened 48 breeding clones from Aberdeen breeding program for PVY markers. Screened 10 clones selected in 2009 in single hills for resistant to Colombia root-knot nematodes (CRKN). Six clones were confirmed to have resistant the gene RMc1(blb), from S. bulbocastanum. A graduate student, Jose Ortega finished working on his Master degree project on PVY resistant derived from Premier Russet (A93157-6LS) and scheduled to defend his thesis. DNA fingerprinting of 54 varieties and advanced clones from the North West breeding; Program was conducted for variety identification and for PVP. Prepared PVP and release documents for new released varieties. Conducted three molecular breeding trials supported by OSU, Agricultural Research Foundation on PVY, late blight (RB gene) resistant, and Colombia root-knot nematodes. Evaluated 232 varieties in SolCAP collaborative trials. KBREC: Evaluated 70 advanced Tristate and Western Regional cultivars for fresh market, processing, and specialty use characteristics adaptable to the Klamath Basin. Evaluated 179 preliminary and advanced Oregon cultivars. Screened 59 4-hill chipping selections from 2009 single-hills grown in Klamath County and retained 15 for further evaluation. Screened 59 4-hill specialty selections from 2009 single-hills grown in Klamath County and retained 9 for further evaluation. Pre-selected, planted, harvested, and evaluated 26,656 single-hill seedling tubers and selected 291 for further evaluation. Summarized and published all red-skinned and specialty-type variety trial information from all participating regional cooperators. HAREC: Evaluated 33 advanced Tristate and Western Regional cultivars for fresh market, and processing use characteristics adaptable to the lower Columbia Basin. Evaluated 125 preliminary and advanced Oregon cultivars. Evaluated 759 Oregon selections and 112 USDA-ARS Aberdeen selections for visual reselection, with 70 and 23 cultivars being selected, respectively. Evaluated 56 Tristate and Western Regional cultivars for early die resistance. COARC: Produced and stored seed of 1,041 selections at Powell Butte for Oregon, Tristate, and Western Regional trials to be conducted in 2011. Packaged (5, 10, 25, and 50 lb sacks) and shipped 29,104 lbs. of seed to 19 research and 9 industry cooperators in 14 states. Pre-selected, planted, harvested, and evaluated 57,704 single-hill seedling tubers and selected 473 for further evaluation. Summarized and published all variety trial information from 3 Oregon sites. Maintained a web site featuring a potato variety database that generates various yield and quality reports. University of Idaho 2010 Tri-State/Regional Report 2010 Tri-State Technical Committee Meeting - Idaho Report Variety Development: No new varieties were released by the Idaho program last year. A97066-42LB, A98345- 1, A0008-1TE A00324-1, and A01010-1 were entries in the Western Regional Potato Variety Trials. A01010-1 appears to have potential as a dual purpose russet and also has high levels of vitamin C and protein. A0008-1TE is under consideration for release, primarily for early fresh production. Average yields in early harvest trials in Idaho, Oregon and Washington have been comparable to Russet Norkotah, but it has higher levels of vitamin C and protein. Additional research will be conducted in 2011 to assess fresh pack potential for A0008-1TE under commercial conditions. Seven clones were evaluated last year in the Tri-State Red/Specialty Trial, including, A02267-1Y, A02267-5PY, A03576-5Y, NDA8512C-1R, NDA050237B-1R, A05173-2RY, and A05177-4RY. In addition, A99326-1PY, A99331-2RY A00286-3Y and A99433-5Y were evaluated in the Western Regional Red/Specialty Trial. A99326-1PY is under consideration for release in 2011. It is a purple-skinned, yellow fleshed clone with good culinary quality and medium yield potential. Continuing Research Studies: In 2010, 36 trials were conducted at 7 locations across southern Idaho, consisting of advanced and cooperative variety trials, grower variety trials, genetic studies, and management studies. Efforts to enhance potato vitamin C content continued, with breeding efforts progressing to increase levels of ascorbic acid. In addition, screening studies were again conducted in 2010 in an effort to develop russets with good yield and quality characteristics and resistance to corky ringspot. The study is progressing well with a number of russets with good type being identified with good corky ringspot resistance. Management Studies: Nitrogen Responses - In 2010, we continued a multi-year study in which we compared the nitrogen use efficiency of varieties released by the Northwest Potato Variety Development Program with that of Russet Burbank. The varieties included Alpine Russet, Alturas, Classic Russet, Clearwater Russet, Highland Russet, Premier Russet, Umatilla Russet and Western Russet. In each of these trials, the varieties received N fertilizer at rates ranging from 0 to 360 lb N/acre, with the N split between pre-plant (60%) and in-season (40%) applications. We compared the yield produced per lb of N fertilizer for each variety at the point of maximum yield. With the exception of Highland Russet, all of the new varieties had appreciably higher N use efficiency than Russet Burbank at maximum yield, with improvements ranging from 118 to 170% of RB. Nitrogen requirements for a given yield goal, were about 40% less than Russet Burbank for Alturas and 20-25% less than Russet Burbank for Alpine Russet, Classic Russet, Clearwater Russet and Premier Russet. Western Russet required about 10% less N than Russet Burbank, while Highland Russets N requirement was similar to Russet Burbanks Irrigation Responses - In an additional study conducted at Aberdeen in 2010, Alpine Russet, Alturas, Clearwater Russet, Premier Russet Umatilla Russet and Russet Burbank were irrigated during the growing season at; 1) 100% ET, 2) 75% ET, or 3) 50% ET. Premier Russet, Alpine Russet and Clearwater Russet had the highest total and US No. 1 yields with irrigation at 100% ET. Premier Russet, Alpine Russet and Clearwater Russet also had the highest US No. 1 yields with the 75% ET and 50% ET irrigation treatments. Response to Reduced Pesticide Applications - Studies were conducted in 2010 as part of an ISDA-SCBG research project at Parma and Aberdeen to evaluate the potential for reducing pesticide rates on new varieties from the Tri-State. Varieties included in this study were Alpine Russet, Alturas, Clearwater Russet, Premier Russet and Umatilla Russet, and Russet Burbank. Preliminary results have shown that pesticide rates for some of these varieties can be reduced in comparison to Russet Burbank. Texas 2010 Tri-State/Regional Report 84,644 first year seedlings, resulting from 657 different parental combination or families (crosses), were grown for selection on the Barrett Farm (16,860) near Springlake and on the CSS Farm (67,784) near Dalhart. 573 original selections were made. 14 clones were intercrossed to produce 11 families. We received seedlings tubers from the Idaho (6,860), Oregon (30,696), Colorado (20,020), and North Dakota (11,616) breeding programs. We grew 33,726 tuberlings in the greenhouse from true seed. Evaluation trials were conducted at Weslaco (Winter - December 6 planting, April 14 harvest), Springlake (Spring April 1 planting, August 2, 5, 24, and 26 harvests), and Dalhart (Fall May 6 planting, September 6,20 and October 4, 18, 20 harvests) 693 advanced selections/new cultivars were tested in 40 separate trials. Western Regional Trials were conducted at both Springlake (Chip, Russet and Red/Specialty) and Dalhart (Chip). The Texas Program had three entries in the Western Regional Russet Trial (AOTX95265-1Ru, AOTX96216-2Ru, and AOTX96265-2Ru) and three entries in the Western Regional Red/ Specialty Trial (BTX2332-1R, COTX94216-1R, COTX94218-1R). The Texas program had 13 entries (ATTX88654-2P/Y, ATTX98510-1R/Y, ATTX01180-1R/Y, BTX2103-1R/Y, COTX01403-4R/Y, TX1674-1W/Y, AOTX96084-1Ru, AOTX98152-3Ru, ATX9332-12Ru, AOTX91861-4R, ATTX98453-11BR, NDTX5003-2R, and NDTX5438-11R) in theSouthwestern Regional Trials. Field day was held on July 15 at Springlake and was well attended. Initiated a major expansion of the chip program with participation in the National Breeders Chip Trial. Continued investigating activity of bioactive compounds from potato on prostate cancer in vivo. Virtually all of the russet potatoes grown in Texas in 2010 were the improved Texas Russet Norkotah strains. Over the past several years, Texas recorded the highest Summer crop yields in the nation (440-465 Cwt/A) among the 11 states producing a summer crop. PVP was granted for Stampede Russet and Rio Rojo in 2010. A major preoccupation of the program continues to center around the Zebra Chip effort. Emphasis on virus testing and clean-up continued. Colorado State University 2010 Tri-State/Regional Report The Colorado Potato Breeding and Selection Program intercrossed 99 parental clones in 2010 in two separate crossing blocks. The emphasis of the first crossing block was russet, chipper, specialty cultivar development and PVY resistance. The second crossing block emphasized russet and specialty cultivar development and PVY resistance. Seed from 278 combinations was obtained. Approximately 57,200 seedling tubers representing 218 families were produced from 2008 and 2009 crosses for initial field selection in 2011. These seedlings represent crosses segregating primarily for russet, reds, specialty types, and resistance to late blight, PVY, corky ringspot, and nematodes. Second through fourth size seedling tubers will be distributed to Idaho (USDA-ARS), Minnesota, North Dakota, Oregon, Texas, Wisconsin, and Alberta, Canada (Agriculture Canada). Colorado grew 84,924 first-year seedlings representing 478 families in 2010, with 623 selected for subsequent planting, evaluation, and increase in future years. A portion of these seedlings were obtained from the USDA-ARS (Aberdeen, Idaho and Beltsville, Maryland, MD), Agriculture Canada, Texas A&M University, North Dakota State University, and Oregon State University. Another 1,166 clones were in 12-hill, preliminary, and intermediate stages of selection. At harvest, 370 were saved for further increase and evaluation. Fifty-five advanced selections were saved and will be increased in 2011 pending further evaluation. Another 281 selections and cultivars were maintained for germplasm development, breeding, and other experimental purposes including seed increase/maintenance. Field trials conducted in 2010 included: Preliminary Trial, Intermediate Yield Trial, Intermediate Specialty Yield Trial, Advanced Yield Trial, Advanced Fingerling Trial, Southwestern Regional Russet Trial, Southwestern Regional Red Trial, Southwestern Regional Chip Trial, Southwestern Specialty Trial, Western Regional Russet/Processing Trial, Western Regional Red Trial, Western Regional Specialty Trial, San Luis Valley Chipping Trial, and Western Regional Chipping Trial. All trials are grown under low input conditions, primarily for reduced nitrogen and fungicide. A total of 212 samples are in the process of being evaluated for two or more of the following postharvest characteristics: blackspot susceptibility, storage weight loss, dormancy, enzymatic browning, specific gravity, french fry color, french fry texture, and chip color. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by Colorado producers in 2010, included 6 russets (AC99375-1RU, CO97087-2RU, CO98067-RU, CO99053-3RU, CO99053-4RU, and CO99100-1RU), 2 reds (CO99076-6R and CO99256-2R), 9 chippers (AC01151-5W, CO95051-7W, CO97043-14W, CO00188-4W, CO00197-3W, CO00270-7W, CO02024-9W, CO02033-1W, and CO02321-4W), and 8 specialties (AC97521-1R/Y, AC99329 -7PW/Y, ATC00293-1W/Y, CO97226-2R/R, CO97232-2R/Y, CO00412-5W/Y, CO01399-10P/Y, TC02072-3P/P). An additional 12 selections are being considered for exclusive release. Included in this group is CO95051-7W. Since the WR Regional Chip Trials it has undergone extensive testing in the USPB/SFA Chip Trials and the USPB Fast Track program. This round white selection has excellent chip color after long term storage. Plant Variety Protection was granted to Rio Grande Russet in 2010. Since 1975, there have been 27 potato cultivars/clonal selections released by Colorado State University or in cooperation with other agencies. Colorado State University releases accounted for 59% of the 55,500 acres planted to fall potatoes in Colorado in 2010. Primary Colorado cultivars planted were Russet Norkotah-S3 (24%), Canela Russet (13%), and Rio Grande Russet (7%). Colorado cultivars and clonal selections accounted for 44% of the 12,053 acres of Colorado certified seed accepted for certification in 2010. Advanced Colorado selections accounted for another 1% of the seed acreage. Three of the top 10 russet cultivars grown for seed in the U.S. [Canela Russet (#7), Rio Grande Russet (#8), Russet Norkotah-S3 (#9) in 2009 were developed by the Colorado program. For reds Sangre-S11 ranked #7. For colored fleshed specialties, Mountain Rose and Purple Majesty both ranked #1 among red- and purple-fleshed cultivars. In 2010, horticultural evaluations were conducted on 23 potato cultivars and advanced selections in 16 trials at 7 locations in the San Luis Valley of Colorado. Tests included 9 russets, 4 reds, 10 specialties including 2 fingerlings. The trials assessed the influence of different cultural management practices on plant growth, development, tuber yield, tuber size distribution, and tuber quality of potato cultivars, in an effort to establish optimum management guidelines for each cultivar. Studies conducted in 2010 included the response of four potato cultivars to different nitrogen (N) application rates. Nitrogen rate treatments ranged from 0 (control) to 202 kg N/ha. The influence of in-row seed spacing on the performance of five potato cultivars was evaluated. Potato cultivars were planted at 25, 30, 35, and 40 cm. The effect of N application timing on the performance of a newly released potato cultivar Mesa Russet was concluded in 2010. Pre-plant N application rate treatments included 0, 68, 90, 112 kg N/ha, and a control, where no N was applied. Where N was applied, the remainder of the total N recommended for the cultivar was applied in three split applications during the crop growing season. The effect of compost and N application rate was concluded in 2010. Compost application rate treatments ranged from 2.2 to 11.2 Mg/ha. Within each compost application rate treatment N was applied either at the full recommended rate or one half of the recommended rate for the cultivar. Specific results of these trials will be available at a later date. 2010 Tulelake Potato Research Update UC Intermountain Research & Extension Center, Tulelake, CA Variety Development: Evaluated 44 Western Regional, 24 Southwest Regional, and 11 entries of local interest for the Late Russet, Red/Specialty and Chipper Variety Trials to look for entries suitable for the Klamath Basin. Evaluations included variety susceptibility to Verticillium wilt. Cultural Management: Seed Spacing Trial: Evaluated 6 Chip varieties, one was WR entry CO97043-14W, at 4 different seed spacings of 6.75, 9.25, 12.5, and 15 inches Pest Management: Herbicide Trial: Evaluated efficacy and crop safety of varying rates and tank-mixes of Outlook, Prowl H2O, Matrix, and Metribuzin on Russet Norkotah. Disease management trials examining control methods for Black dot and VerticilliumWilt. PVMI Report: Tri-State & Western Regional Technical Meeting 2.1.11. Jeanne Debons, Executive Director PVMI PVMI has collected $88,500 in license fees and $329,527.28 in royalties. The breakdown of where the funds are coming from is approximately 1/3 from the Tri-States, 1/3 from the US and 1/3 from outside the US, meaning 2/3 of the total comes from outside the Tri-State area. The license fees were reduced in January 2009, this has been received positively with more licenses administered this past year. For the first year in 2009 Ivory Crisp provided royalty income as will Alturas in 2010. This will help to offset the losses by Premier having being dumped and Classic problems encountered with fresh packing. All seed growers who grow Classic have been sent New Classic Russet Management Guidelines prepared by Jeff Stark and Mark Pavek. A successful RFP and exclusive license has been granted to Klamath Basin Fresh Direct LLC, Dan Chin for Purple Pelisse which is currently being managed in the US and Canada. The Coop is also sublicensing to other growers including Potandon, Childstock Farms and others. PVMI has worked to create both Tri-State and variety marketing and promotional materials to be distributed at exhibitions and through the website www.pvmi.org. A new community site is available to be used by all members of the industry to buy, sell and blog about potatoes http://community.pvmi.org. $33,792 was paid by PVMI to the Universities for PVP costs incurred by them since 2006. Note also that an additional $15,213 was paid for International PBR, this includes trials, application and administration costs associated with registering the new varieties in Canada. Future PBR costs will be covered by parties bringing varieties to new countries under the Sub-License Agreement. The sum of $100,000 was distributed to the Universities for the second year running for further distribution in aid of the research and breeding efforts, as it is one of the principal objectives of PVMI. PVMI is concentrating in supporting the existing Tri-State varieties as well as getting them evaluated in foreign markets, where potential for income ($1.00/CWT seed sold) is high, and Tri-State has an excellent international reputation. PVMI is also working with Lorie Ewing to get more money into the Potato Lab at University of Idaho.

Publications

Blessington, T., M.N. Nzaramba, D.C. Scheuring, A.L. Hale, L. Reddivari, and J.C. Miller, Jr.,. 2010. Cooking methods and storage treatments of potato: Effects on carotenoids, antioxidant activity, and phenolics. Amer. J. Potato Res. 87:479-491. Brown, C. R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller, Jr. 2010. Stability and Broad-sense Heritability of Mineral Content in Potato: Iron. Amer. J. Potato Res. 87:390-396. Essah, S.Y.C, Davidson, R D., and Holm, D G. 2010. Response of a russet potato cultivar to phosphorus and seed spacing management. Am. J. Potato Res. 87:121-122. Essah, S Y.C., Davidson, R.D., and Holm, D G. 2010. Interactive effects of compost tea, fungicide application, and nitrogen rate on the performance of two potato cultivars. Am. J. Potato Res. 87:121. Hiles, C.D., M.J. Pavek, N.R. Knowles, and Z.J. Holden. 2010. Defining in-season nitrogen needs for Alturas and Premier Russet. Proceedings of the 1st Annual Washington and Oregon Potato Conference. pp. 27-44. Holm, D. G. 2010. Colorado Advanced Potato Selections Data Summary. Report for the 2010 Clonal Evaluation Meeting. 53pp. Holm, D.G. and Goktepe, F. 2010. 2009 Potato Breeding and Selection Research Report to the San Luis Valley Research Center Committee and the Colorado Potato Administrative Committees (Area II and III). 131pp. (unpub) Holm, D.G., S.Y.C. Essah, J.C. Miller, Jr., R.G. Wilson, and J.J. Nunez. 2011. Potato breeding and cultivar development in the Southwest. Amer. J. Potato Res. 88:45. (Abstr). Jansky, S. and J.C. Miller,Jr. 2010. Evaluation of Verticillium wilt resistance in Russet Norkotah and six strain selections. Amer. J. Potato Res. 87:492-496. Knowles, N.R. and M.J. Pavek. 2011. WSU potato cultivar yield and postharvest quality evaluations for 2010. Washington State University Special Report. (in press). Knowles, N.R., C.D. Hiles, M.J. Pavek, L.O. Knowles, and Z.J. Holden. 2010. Effects of nitrogen management on growth, yield, tuber maturity and postharvest quality. Potato Progress 10(9): 5-6. Knowles, N.R., M.J. Pavek, J.C. Stark and M.I. Vales. 2010. Potato variety development and improvement in the Northwest. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:48-49. Knowles, N.R., M.J. Pavek, C. Hiles, L.O. Knowles and Z. Holden. 2010. Nitrogen management affects tuber physiological maturity and retention of processing quality. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:49. Knowles, N.R, M.J. Pavek, C.D. Hiles, L.O. Knowles, and Z. Holden. 2010. Tuber maturity and postharvest behavior. Proceedings of the 1st Annual Washington and Oregon Potato Conference. pp. 57-72. Knowles, N.R, J. Blauer, and L.O. Knowles. 2010. Aging of seed potatoes: physiological process and consequences for production. Potato Growers of Alberta Conference and Trade Show, Nov. 17-19, Red Deer, Alberta (invited presentation). Knowles, N.R., N. Fuller and L.O. Knowles. 2010. Storability and processing quality of new clones and cultivars. Cultivar Performance Workshop, 1st Annual Washington and Oregon Potato Conference, Jan. 26-28, Kennewick, WA. Knowles, N.R., M.J. Pavek, N. Fuller and L.O. Knowles. 2010. Post harvest quality of new clones and cultivars. Washington State Potato Commission Progress Reports for the year 2009 pp. 127-149. Knowles, N.R., L.O. Knowles, G.N.M. Kumar, M.J. Pavek. 2010. Factors affecting seed productivity and post harvest quality of new cultivars. Washington State Potato Commission Progress Reports for the year 2009 pp. 150-195. Knowles, N.R, J. Blauer, and L.O. Knowles. 2010. Tuber set and size distribution studies. WSU Annual Potato Field Day, IAERC, Othello, WA, June 24 (presentation and posters by NRK, JB, and LOK). Knowles N.R, M.J. Pavek, D. Zommick, C. Hiles, L.O. Knowles, Z. Holden. 2010. In-season potato management and post-season quality. WSU Annual Potato Field Day, IAERC, Othello, WA, June 24 (presentation and posters by NRK, and DZ). Kumar, G.N.M., E.C Lulai, J.C Suttle, and N.R. Knowles. 2010. Age-induced loss of wound-healing ability in potato tubers is partly regulated by ABA. Planta 232:1433-1445. Kumar, G.N.M., E.C. Lulai, J.C. Suttle and N.R. Knowles. 2010. Loss of wound healing ability with advancing tuber age is modulated by ABA. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:50. Kumar, G.N.M., E.C. Lulai, J.C. Suttle, and N.R. Knowles. 2010. Age-induced loss of wound-healing ability in potato tubers is regulated by ABA. WSU Academic Showcase, March 26 (poster presentation). Madiwale, G., L. Reddivari, M. Stone, D. Holm, J. Vanamala. 2010. Effect of storage and processing on colored potato functional compounds and their sensory attributes. IFT-USDA Project Directors Meeting, July 16-20, Chicago, IL. Manter, D.K., J. A Delgado, D.G Holm, and R.A Stong,. 2010. Pyrosequencing reveals a highly diverse and cultivar-specific bacterial endophyte community in potato roots. Microb. Ecol. 60:157-166. Miller, C., D. Scheuring, and J. Koym. 2010. Texas Potato Breeding Report, 2009. Texas AgriLife Research, College Station and Lubbock. 386p. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, and J.P. Miller. 2010. Southwest Regional Potato Variety Trial Report 2009. Texas AgriLife Research, College Station and Lubbock. 22p. Miller, C., J. Koym, and D. Scheuring. 2010. 2010 Field Day Handbook. July 15, 2010. Texas Potato Variety Development Program. Texas AgriLife Research, College Station and Lubbock. 33p. Navarre, R., S. Kumar, R. Shakya, A. Goyer, M. Martin, C. Brown, M. Pavek, R. Knowles, I. Vales and J. Holden. 2010. Changes in phytonutrient content during tuber development and identification of phytonutrient-rich New Potatoes. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:56-57. Novy, R.G., J.L. Whitworth, J.C. Stark, S.L. Love, D.L. Corsini, J.J. Pavek, M.I. Vales, S.R. James, D.C. Hane, C.C. Shock, B.A. Charlton, C.R. Brown, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, and N. Olsen. 2010 Clearwater Russet: A Dual-Purpose Potato Cultivar with Cold Sweetening Resistance, High Protein Content, and Low Incidence of External Defects and Sugar Ends. Amer. J. Potato Res. 87:458-471. Pavek, M.J, N.R. Knowles, C.D. Hiles, and Z.J. Holden. 2010. The economics behind in-season nitrogen and potato production. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:61. Pavek, M.J. and N.R. Knowles. 2010. WSU potato cultivar yield and postharvest quality evaluations for 2009. Washington State University Special Report. 122 pages. Reddivari, L., J. Vanamala, S.H. Safe, and J.C. Miller, Jr. 2010. The bioactive compounds ± - chaconine and gallic acid in potato extracts decrease survival and induce apoptosis in LNCaP and PC3 prostate cancer cells. Nutr. and Cancer. 62(5): 601-610. Stark, J.C., R.G. Novy, J.L. Whitworth, N.R. Knowles, M.J. Pavek, S.L. Love ,M.I. Vales, S.R. James, D.C. Hane, C.R. Brown, B.A. Charlton, D.L. Corsini, J.J. Pavek, N. Olsen and T. Brandt. 2010. Classic Russet: A Potato Cultivar with Excellent Fresh Market Characteristics and High Yields of U.S. No. 1 Tubers Suitable for Early Harvest or Full-Season Production. Amer. J. Potato Res. 87:360-373. Stushnoff, C., Ducreux, L.J.M., Hancock, R.D., Hedley, Holm, D.G.. McDougall, G.J., McNicol, J.W., Morris, J., Morris,W.L., Sungurtas, J.A., Verrall, S.R., Zuber, T., and Taylor, M. A.. 2010. Flavonoid profiling and transcriptome analysis reveals new gene-metabolite correlations in tubers of Solanum tuberosum L. J. Exp. Bot. 61:1225-1238. Weeda, S.M., Kumar, G.N.M. and N.R. Knowles. 2010. Correlative changes in proteases and protease inhibitors during mobilization of protein from potato (Solanum tuberosum L.) seed-tubers. Functional Plant Biology 37:32-42. Weeda, S.M., Kumar, G.N.M. and N.R. Knowles. 2011. Protein mobilization from potato tubers during long-term storage and daughter tuber formation. Intl J Plant Sci. 172:459-470. Whitworth, J.L., R.G. Novy, J.C. Stark, J.J. Pavek, D.L. Corsini, M.I. Vales, A.R. Mosley, S.R. James, D.C. Hane, C.C. Shock, B.A. Charlton, N.R. Knowles, M.J. Pavek. 2010. Yukon Gem: A yellow-fleshed potato cultivar suitable for fresh-pack and processing with resistances to PVYO and late blight. Amer. J. Potato Res.87:327-336. Whitworth, J.L., R.G Novy, J.C. Stark, J.J. Pavek, D.L. Corsini, S.L. Love, N. Olsen, S.K. Gupta, T. Brandt, M.I. Vales, A.R., Mosley, S. Yilma, S.R. James, D.C. Hane, B.A. Charlton, C.C. Shock, N.R. Knowles, M.J. Pavek, J.S. Miller, and C.R. Brown. 2011. Alpine Russet: A potato cultivar having long term tuber dormancy making it suitable for processing from long-term storage. Am. J. Pot. Res. (in press). Vales, M.I., N.R. Knowles, M.J. Pavek, J.C. Stark. 2010. Disease resistance in new tri-state potato varieties. Proceedings of the 1st Annual Washington and Oregon Potato Conference. pp. 99-102. Vales, M.I., C.R. Brown, D.C. Hane, S.R. James, C.C. Shock, B.A. Charlton, S. Yilma, A.R. Mosley, D. Culp, E. Feibert, J.C. Stark, M.J. Pavek, N.R. Knowles, R.G. Novy, J.L. Whitworth, S. Jansky. 2010. Purple Pelisse: A tri-state specialty fingerling potato with purple skin and purple flesh. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:67-68. Zommick, D.H., G.N.M. Kumar, L.O. Knowles and N.R. Knowles. 2010. Postharvest Mottling of Premier Russet Tubers may be a Consequence of Accelerated Aging. Proceedings of the 94th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 88:70-71. Zommick, D.H, G.N. Mohan Kumar, L.O. Knowles, and N.R. Knowles. 2010. Physiological and biochemical characterization of a mottling defect in potato tubers. WSU Academic Showcase, March 26 (poster presentation).

Impact Statements

Idaho The primary outcome of the project is the collaborative development and release of new potato varieties to improve the economic efficiency of potato production in Idaho and the region. Extensive effort is put into the process of commercial adoption and use of these new varieties. The fresh market industry, French fry processors and chippers have incorporated many varieties developed through the Tri-State variety development program into their businesses. Ranger Russet, Alturas, Western Russet, Premier Russet, and Umatilla Russet were the 3rd, 4th, 5th, 6th and 7th most widely grown varieties in Idaho in 2010, respectively and accounted for 18.3% of the planted acreage in Idaho in 2010.
Washington Over the past 5 years we have evaluated 7 of the recently released potato varieties form the Northwest Potato Variety Development Program to improve nitrogen use efficiency. Results show that the potential for improving the efficiency of N fertilizer use through the use of these newer potato varieties is substantial. Reducing fertilizer applications by 20-40% per unit of yield produced would not only provide a considerable economic benefit to growers but would also provide environmental benefits and contribute significantly to the sustainability of potato production systems.
Colorado Since 1975, 27 potato cultivars/clonal selections were released by CSU or in cooperation with other agencies. CSU releases accounted for 59% of the 55,500 A planted to fall potatoes in CO in 2010. CO cultivars and clonal selections accounted for 44% of the 12,053 acres of CO certified seed accepted for certification in 2010. Advanced CO selections accounted for another 1% of the seed acreage. Three of the top 10 russet cultivars grown for seed in the U.S. [Canela Russet (#7), Rio Grande Russet (#8), Russet Norkotah-S3 (#9)] in 2009 were developed by CSU. For reds, Sangre-S11 ranked #7. For colored-fleshed specialties, Mountain Rose and Purple Majesty both ranked #1 among red- and purple-fleshed cultivars.
Texas Twelve improved varieties have been developed/co-developed and/or released from the Texas Potato Breeding and Variety Development Program. Virtually all of the russet potatoes grown in Texas in 2010 were to the improved Texas Russet Norkotah strains. In 2009 the average summer crop yield in Texas was reported to be 460 Cwt/A, the highest in the nation among 11 states with summer crop production. In Texas, the farm gate value of the crop has grown from less than $20 million to about $99.5 million with an annual economic impact to the state estimated to exceed $300 million.

Date of Annual Report: 03/12/2012

Report Information

Annual Meeting Dates: 01/31/2012 - 01/31/2012
Period the Report Covers: 01/01/2011 - 12/01/2011

Participants

Participants Attachment:

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Brief Summary of Minutes

Minutes Attachment:

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Accomplishments

Colorado The Colorado Potato Breeding and Selection Program intercrossed 104 parental clones in 2011 in two separate crossing blocks. Approximately 40,610 first-size seedling tubers representing 154 families were produced from 2010 greenhouse crosses for initial field selection in 2012. These seedlings represent crosses segregating primarily for russet, reds, specialty types, and resistance to late blight, PVY, corky ringspot, and nematodes. Colorado grew 84,560 first-year seedlings representing 477 families in 2011, with 738 selected for subsequent planting, evaluation, and increase in future years. A portion of these seedlings were obtained from the USDA-ARS (Aberdeen, Idaho), Agriculture Canada, Texas A&M University, and North Dakota State University. Another 966 clones were in 12 hill, preliminary, and intermediate stages of selection. At harvest, 330 were saved for further increase and evaluation. Sixty-eight advanced selections were saved and will be increased in 2012 pending further evaluation. Another 303 selections and cultivars were maintained for germplasm development, breeding, and other experimental purposes including seed increase/maintenance. Seventy advanced selections were saved and will be increased in 2012 pending results of ongoing evaluations. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by Colorado producers in 2011, included 10 russets (AC99375 1RU, AC00395 2RU, CO97087 2RU, CO99053 3RU, CO99053 4RU, CO99100 1RU, CO03187 1RU, CO03202 1RU, CO03276 4RU, and CO03276 5RU), 4 reds (CO98012 5R, CO99076 6R, CO99256 2R, and CO00291 5R), 9 chippers (AC01151 5W, AC03433 1W, CO95051 7W, CO00188 4W, CO00197 3W, CO00270 7W, CO02024 9W, CO02033 1W, and CO02321 4W), and 15 specialties (ATC00293 1W/Y, AC99329 7PW/Y, AC99330 1P/Y, CO97222 1R/R, CO97226 2R/R, CO97232 1R/Y, CO97232 2R/Y, CO00412 5W/Y, CO01399 10P/Y, CO03027 2R/R, CO03094 5RF/RW, CO04021 2R/Y, CO04013 1W/Y, CO04117 5PW/Y, and CO04045 4P/P). Current plans are to name AC99329 7PW/Y, CO99053 3RU, CO99100 1RU, CO95051 7W in 2012. Plant Variety Protection was granted for Rio Colorado in 2011. Idaho Variety Development In 2011, three new potato varieties were released from the Idaho breeding program in collaboration with the Tri-State program, including Teton Russet (A0008-1TE), Huckleberry Gold (A99326-1PY) and Palisade Russet (A97066-42LB). Teton Russet is a dual purpose cultivar with maturity similar to Russet Norkotah. It has higher protein content than those of most standard varieties and relatively high vitamin C content. Teton Russet also has excellent culinary qualities that are comparable to Russet Burbank and Classic Russet. It shows good potential for the early fresh market, with potential as a replacement for Russet Norkotah. Industry evaluations of processing quality for Teton Russet show that it has excellent potential for producing premium quality fries. In addition, laboratory analyses by industry and university researchers have confirmed that Teton Russet has relatively low concentrations of asparagine, which is a key component in acrylamide formation. Huckleberry Gold is a medium-early maturing fresh variety with purple skin and yellow flesh and medium yield potential. Merit ratings for fresh pack characteristics including postharvest evaluations for boiling, baking, and microwave characteristics were comparable to those for Yukon Gold. Huckleberry Gold has moderately low specific gravity and good resistance to tuber malformations and most internal and external defects. Huckleberry Gold tubers have glycoalkaloid, reducing sugar and protein concentrations that are similar to Yukon Gold, but substantially higher antioxidant concentrations and lower vitamin C and sucrose concentrations. Palisade Russet is notable for having resistance to foliar and tuber late blight. It is also resistant to Verticillium wilt, black dot, and pink rot, and has a moderate level of resistance to tuber net necrosis, potato virus Y (PVY), and early blight of both the foliage and tuber. Palisade Russet has shown high specific gravities in western production regions of the U.S. which may limit its acceptance by the western processing industry. However, it may have potential as a processing cultivar in areas with inherently low specific gravities. In addition, the very low incidence of sugar ends observed in Palisade Russet relative to Ranger Russet and Russet Burbank also supports its use for processing.The disease resistances of Palisade Russet also make it a good candidate for organic production, or for use by growers seeking reduced pesticide inputs. We had five russet varieties in the Western Regional Trials in 2011 including A98345-1, A01010-1, A00324-1, A01025-4, and A02060-3TE all of which were included in the early and late harvest trials. Several of these selections were also evaluated in early processing trials by industry. We also had eight russet varieties in the early and late season Tri-State Variety Trials. Ten specialty varieties were evaluated in Tri-State Variety Trials at Aberdeen and Parma. Huckleberry Gold was included as a check in these trails so its agronomic performance could be compared to A02267-5PY, a similar purple skin-yellow flesh variety. Management Studies Nitrogen Responses - In 2011, we continued a multi-year study in which we compared the nitrogen use efficiency of varieties released by the Northwest Potato Variety Development Program with that of Russet Burbank. The varieties included Alpine Russet, Alturas, Umatilla Russet, Clearwater Russet, Teton Russet and Huckleberry Gold. In each of these trials, the varieties received N fertilizer at rates ranging from 0 to 360 lb N/acre, with the N split between pre-plant (60%) and in-season (40%) applications. We compared the yield produced per lb of N fertilizer for each variety at the point of maximum yield. All of the new varieties had appreciably higher N use efficiency than Russet Burbank at maximum yield, requiring 15-42% less N than RB per unit of yield produced. Irrigation Responses - Studies designed to evaluate the responses of 5 of the Tri-State releases to reduced amounts of irrigation were conducted at Aberdeen in 2010-2011.Alpine Russet, Alturas, Clearwater Russet, Premier Russet Umatilla Russet and Russet Burbank were irrigated during the growing season at; 1) 100% ET, 2) 75% ET, or 3)50% ET. All of the Tri-State varieties produced higher yields than Russet Burbank under moderate (75% ET) and severe (50% ET) drought. Under moderate drought stress, Umatilla, Alpine and Premier Russet produced 26, 19 and 16% higher total yields than RB, respectively, while Premier, Alpine and Clearwater Russet produced 86, 73 and 73% higher US No. 1 yields than RB.Under severe drought, Alpine, Umatilla and Premier produced 45, 36 and 31% higher total yields than RB, respectively, while Alpine and Premier Russet produced 235% and 229% higher US No. 1 yields than RB, respectively. Response to Reduced Pesticide Applications- Studies were conducted in 2010-11 as part of an ISDA-SCBG research project at Parma and Aberdeen to evaluate the potential for reducing pesticide rates on new varieties from the Tri-State. Varieties included in this study were Alpine Russet, Alturas, Clearwater Russet, Premier Russet and Umatilla Russet, and Russet Burbank. Results have shown that pesticide rates for most of these varieties can be reduced in comparison to Russet Burbank. Late Season Management of Classic Russet and Teton Russet - A study was conducted at Aberdeen in 2011 to evaluate the effects of N timing and harvest date on yield, skin set and shatter and blackspot bruise potential for Classic Russet and Teton Russet. Nitrogen timing treatments were 1) 80% preplant, 20% in-season, 2) 60% preplant, 40% in-season, and 3) 40% preplant, 60% in-season. Harvest dates were Sept. 7 and Sept. 27. Yields generally increased with later N applications, as did yield of tubers >6 oz. Shatter bruise was not significantly affected by N timing or harvest date, but blackspot bruise was higher with the latter harvest. Skin maturity for Teton Russet was slightly better for early N applications than late N. However, skin set for Classic Russet at the early harvest timing was better when most of the N was applied in-season, but was unaffected by N timing at the later harvest. Additional studies were conducted to determine optimal seed piece spacing and N rates for Teton Russet, the data from which were used to develop management recommendations. Teton Russet required about 20% less N than RB per unit of yield produced at maximum yield. Total yields were higher with an 8 inch seed piece spacing than with 11 or 13 inch spacings, but yield of larger tubers increased as spacing increased. Huckleberry Gold - Nitrogen rate and plant spacing effects on yield and tuber size distribution for Huckleberry Gold were also evaluated in 2011. Resulting recommendations for optimal tuber size profiles are 60-80% of the RB N requirement and 6-8 inch seed piece spacing. Oregon KBREC: Evaluated 71 advanced Tri-State and regional cultivars for fresh market, processing, and specialty use characteristics adaptable to the Klamath Basin; Evaluated 194 preliminary and advanced Oregon cultivars; Screened 609 4-hill russet selections from 2010 single-hills grown in Klamath County and Powell Butte, OR and retained 47 for further evaluation; Screened 59 4-hill chipping selections from 2010 single-hills grown in Klamath County and retained 12 for further evaluation; Screened 99 4-hill specialty selections from 2010 single-hills growing in Klamath County and Powell Butte, OR and retained 20 for further evaluation; Planted, harvested, and evaluated 47,725 single-hill seedling tubers and selected approximately 1 - 2% for further evaluation; Summarized and published all red-skinned and specialty-type variety trial information from all participating regional cooperators; Produced and stored seed of approximately 1,000 selections (93,250 lbs) at Klamath Falls for Oregon, Tri-State, and regional trials to be conducted in 2012; Under PVMI contract, produced certified nuclear class seed of 5 varieties (22,600 lbs) and advanced selections HAREC: Evaluated 41 advanced Tri-State and regional cultivars for fresh market and processing use characteristics adaptable to the lower Columbia Basin; Evaluated 144 preliminary and advanced Oregon cultivars; Evaluated 753 preliminary and advanced Oregon cultivars for Zebra Chip expression; Evaluated 609 4-hill russet selections from 2010 single-hills grown in Klamath County and Powell Butte, OR MES: Evaluated 194 preliminary and advanced Oregon cultivars for fresh market and processing use characteristics adaptable to the Treasure Valley; Evaluated the cooking performance of specialty varieties. CSS: Made more than 184 successful crosses between promising long russets for fresh market and processing, to a lesser extent chippers, reds and specialties clones. The crosses will integrate the major viruses ( PVY, PVX, PLRV) resistant genes, cold sweetening resistance and known resistance to tuber worm and potato psyllid, late blight, corky ring spot, and nematodes; Produced a total of 72,000 seedling tubers in Corvallis greenhouses. The A sized 50,000 seedling tubers will be planted in Klamath Falls, Oregon in single-hill. The remaining about 22,000 B size seedling tubers will be distributed for collaborative institutions. Evaluated agronomic and quality traits of Oregon state wide russets and specialty and PYT2 specialty trials in Corvallis; Evaluated potato sensory quality of specialty clones in Statewide trials; Evaluated foliar and tuber late blight resistance early generations and advanced potato clones in artificially inoculated trials in Corvallis. Maintained 85 potato accessions in the disease-free clone bank. Performed molecular marker evaluations for PVY resistance on 176 single hills clones selected in 2010. A total of sixty three resistant clones with the PVY resistant gene Ryadg and with the PVY resistance gene Rysto were identified for further selection & testing; In collaboration with USDA/Aberdeen program by using molecular markers & bioassay we were able to pyramid PVY, PVX and potato pale cyst nematode resistance genes in a single cross.(NPC/USDA funded); By using induced mutation and in vitro techniques we have generated clonal variants of Russet Burbank, Russet Norkotah, and Ranger Russet etc. for further evaluation and selection. We have validated the use of molecular markers to screen for resistance to Colombia root knot nematodes. PVP filed for AmaRosa and Sage Russet. PVP trials were conducted for new near releasing advanced clones. We have conducted several collaborative trials with USDA/ ARS, Aberdeen, Prosser, Beltsville, University of Wisconsin. Other thanks to WSU (Pavek, Holden, etc.) for harvesting and grading Tri-state and Regional trials planted at HAREC. Finished interviews for new potato position at HAREC; PVP filed for Sage Russet and AmaRosa; Proceed with release documents for POR02PG37-2 and TerraRosa (discouraged unless requested by PVMI); Zebra Chip syndrome prevalent at HAREC, excellent opportunity for selection pressure; POR02PG37-2 won best of class for yellow potato category in Or. Potato Commission statewide contest. Texas Thirteen improved varieties have been developed/co-developed and/or released from the Texas Potato Breeding and Variety Development Program. In 2010, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked fourth among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank, Frito Lay varieties, and Ranger Russet. -99,328 first year seedlings, resulting from 661 different parental combination or families (crosses), were grown for selection on the Barrett Farm (58,460) near Springlake and on the CSS Farm (40,868) near Dalhart. -490 original selections were made -15 clones were intercrossed to produce 15 families -We received seedlings tubers from the Idaho (6,362), Oregon (7,991), Colorado (39,933), and North Dakota (20,648) breeding programs. -We grew 48,232 tuberlings in the greenhouse from true seed and sent tuberlings to Colorado (14,757), Idaho (7,476), and North Dakota (7,476) -Evaluation trials were conducted at Weslaco (Winter - December 6 planting, April 14 harvest), Springlake (Spring - March 21 planting, July 30, August 3, and 25 harvests), and Dalhart (Fall - May 2 planting, September 19, 26 and October 3 and 17 harvests) 757 advanced selections/new cultivars were tested in 33 separate trials -Western Regional Trials were conducted at both Springlake (Chip, Russet and Red/Specialty) and Dalhart (Chip) -The Texas Program had one entry in the Western Regional Russet Trial (AOTX96216-2Ru,) and four entries in the Western Regional Red/ Specialty Trial (ATTX01178-1R, ATTX98453-6R, ATTX98510-1R/Y, and COTX01403-4R/Y) -The Texas program had six entries (ATTX88654-2P/Y, ATTX01180-1R/Y, TX1674-1W/Y, AOTX96075-1Ru, COTX02172-1R, and NDTX5438-11R) in the Southwestern Regional Trials -The Texas Field day was held on July 15 at Springlake and was well attended -Continued investigating activity of bioactive compounds from potato on prostate cancer in vivo -Virtually all of the russet potatoes grown in Texas in 2011 were the improved Texas Russet Norkotah strains. Over the past several years, Texas recorded the highest summer crop yields in the nation (440-465 Cwt/A) among the 11 states producing a summer crop -A major effort of the program continues to center around Zebra Chip -Emphasis on virus testing and clean-up continued -In 2011, high temperatures were 10 degrees higher and low temperatures were 5 degrees higher than normal in Springlake, with less than a half inch of precipitation for the season. These trials received a severe freeze on 4 and 5 May and psyllid populations were unusually low -In 2010, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked fourth among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank, Frito Lay varieties, and Ranger Russet Washington Each year, WSU collects seed lot samples from potato growers across the state. These seed lots are evaluated for seed carry over issues such as disease and herbicide damage and any variety mixing. The composition of the 2011 WSU Seed Lot Trial included 23% of other varieties (varieties without significant acreage), 21% Russet Burbank, 18% Russet Norkotah, 14% Ranger Russet, 13% Umatilla Russet, 8% Alturas, and 3% Premier Russet. Varieties developed by the Northwest Potato Variety Development Program/PVMI accounted for 42% of the seed lots entered into the 2011 trial and included: Premier Russet, Alpine Russet, Blazer Russet, Alturas, Ranger, Umatilla, and Gallatin Russet, Modoc, TerraRosa, Defender, PA00N14-2, AO96141-3, A01010-1, and A84180-8. In 1962, only eight varieties were entered into the Seed Lot Trial. In 2011 there were forty five entries. Russet Burbank acreage continues to decline. We continue to update cultural management information for Alturas, Alpine Russet, Classic Russet, Clearwater Russet, Owyhee Russet, Ranger Russet, Russet Burbank, Teton Russet, Sage Russet, and Umatilla Russet by conducting nitrogen, phosphorous, irrigation, and plant population studies. The research documents in-season growth and development as well as effects on post-harvest quality and storability. We continued Tri-State 10-hill and PYT trials this year and hope to continue the early testing in the future. Results from our research will be converted into PVMI cultural management guides when research is complete. We started a Fresh Pack Variety Trial, for both early harvest (~100 DAP) and late harvest (~150 DAP) Justification: Russet Norkotah, the predominant fresh pack variety, is susceptible to PVY. It is difficult for seed growers to certify their Norkotah and difficult for commercial growers to find certified seed. Norkotah internal color tends to turns brownish-gray following months of storage. Objectives: Identify most profitable varieties for early and late harvest, Identify varieties with traits similar to Russet Norkotah: bruise resistance, appearance, early and late, with good flavor, texture and appearance. It is also essential to maintain and increase demand and grower income. Methods: Twelve varieties were included in the trial: Russet Norkotah, R. Norkotah strains CO-3, CO-8, TX278, and TX296, and Russet Burbank, Teton Russet, Classic Russet, Owyhee Russet, and numbered varieties with promise: A01010-1, A096141-3, PA00N14-2. All varieties were grown in an early harvest trial and a late harvest trial. Preliminary results can be seen on the following pages. Taste test data from potatoes in the 2011 Late Harvest Fresh Pack Trial harvested three weeks earlier. For each category (e.g. Aroma, Texture) values are lowest at the center of the graph and highest at its parameter. Ratings are from a minimum of 50 taste panelists. California In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. California harvested potato acreage totaled 37,600 in 2011. California currently lacks a public potato breeding program and instead works closely with the Southwest and Western Regional programs for breeding stock and advance selections. Work in Tulelake included evaluation of 69 advance selections in three replicated trials in 2011. The trials included entries from the Western Regional variety development program, the Southwest Regional variety development program, and varieties of local interest. Verticillium wilt susceptibility screening was conducted on all Western Region selections in Tulelake. Cultural Management Trials Seed Spacing Trial: This study evaluated the influence of seed spacing on potato varieties yield, tuber size distribution, and quality. Each variety was planted at four seed spacings: 6.5, 9.1, 11.8, and 14.3 inches. Entries included chip varieties and varieties from the Southwest Regional program and Western Regional Program. Nitrogen Fertilization Trial: This study evaluated the influence of nitrogen fertilizer on Classic Russet and Russet Norkotah yield, quality, and revenue on the high organic matter soils of Tulelake. Treatments evaluated split application of nitrogen with 50% applied at planting and 50% from tuber initiation to mid-bulking. Rates ranged from 0 to 300 lbs applied N per acre per season. Additional treatments evaluated the influence of different nitrogen application timings and three nitrogen additive products. Pest Management Trials Influence of Fungicides and Biological Controls on Potato Diseases and Yukon Gold Yield and Quality: This study investigated chemical and non-chemical disease controls and the integration of control methods for control of Rhizoctonia solani (black scurf), Colletotrichum coccodes (black dot), and Verticillium dahlia (Verticillium wilt). The study involved two separate trials conducted in 2011. One trial evaluated treatments applied to a potato crop grown in soil that was not fumigated prior to planting. The other trial was conducted in a field that was fumigated with metam sodium (Vapam) in fall 2010 and evaluated a sub-set of the same treatments. Harvest data included tuber yield, tuber size, potato grade, and tuber external and internal quality. Disease evaluations for Rhizoctonia, Colletotrichum, and Verticillium were conducted during the growing season and post-harvest. The Influence of Metam Sodium (Vapam) and 1,3-dichloropropene (Telone II) on Russet Potato Yield and Potato Early Dying Suppression : This study was established to evaluate the influence of fumigation and potato variety on potato yield and disease incidence. It was conducted in a field with a history of early-dying. Verticillium dahliae is considered the primary causal agent of early dying. The study was a split-plot design. Whole-plot treatments were metam sodium and/or 1,3-Dichloropropene applied in fall 2010 at different rates. In spring 2011, three russet potato varieties with varying susceptibility to early dying were planted in each fumigation plot. Potato varieties included: Russet Norkotah (highly susceptible to early-dying), Russet Burbank (moderately susceptible to early dying), and Classic Russet (moderately resistant to early-dying). All plots were managed the same with regard to irrigation, fertilization, and insect/weed management. No fungicides were applied to the study site.

Publications

1. Bizimungu, B., Holm, D. G., Kawchuk, L. M., Konschuh, M., Schaupmeyer, C., Wahab, J., Waterer, D., Driedger, D., Wolf, H., McAllister, P., Howard, R., Platt, H. W., Lynch, D. R. 2011. Alta Crown: A new russet potato cultivar with resistance to common scab and a low incidence of tuber deformities. Am. J. Potato Res. 88:72-81. 2. Brown, C. R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller, Jr. 2011. Stability and Broad-sense Heritability of Mineral Content in Potato: Zinc. Amer. J. Potato Res. 88:238-244. 3. Brown, C.R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller Jr. 2011. Stability and Broad-sense Heritability of Mineral Content in Potato: Zinc. Am J Potato Res 88:238-244. 4. Butler, C.D., B. Gonzalez, M.L. Keremane, R.F. Lee, R.G. Novy, J.C. Miller, and J.T. Trumble. 2011. Behavioral responses of adult potato psyllid, Bactericera cockerelli (Hemiptera: Triozidae), to potato germplasm and transmission of Candidatus Liberibacter psyllaurous. Crop Prot. 30:1233-1238. 5. Essah, S. Y. C, Holm, D. G., and Davidson, R. D. 2011. Response of potato to potassium fertilizer source and form of application in the San Luis Valley of Colorado. Am. J. Potato Res. 88:37. (Abstract). 6. Essah, S. Y. C, Holm, D. G., and Davidson, R. D. 2011. Optimizing nitrogen fertilizer application and plant population for maximum tuber yield and quality in Mesa Russet, a new Colorado cultivar. Am. J. Potato Res. 88:37. (Abstract). 7. Greenway, G., J.F. Guenthner, L.D. Makus and M.J. Pavek. 2011. Potato and Meat Type Preference by U.S. Region. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:41. 8. Hiles, C.D., M.J.Pavek, N.R. Knowles and Z.J. Holden. 2011. Defining In-Season Nitrogen Needs to Maximize Profits from Alturas and Premier Russet. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:43. 9. Holm, D. G. and Gray, C. 2011. Colorado Advanced Potato Selections Data Summary. 10. Holm, D. G. and Gray, C. 2011. 2010 Potato Breeding and Selection Research Report to the San Luis Valley Research Center Committee and the Colorado Potato Administrative Committees (Area II and III). 130pp. (Unpub) 11. Holm, D. G., Essah, S. Y. C., Miller, J. C., Jr., Wilson, R. G., and Nunez, J. J. 2011. Potato breeding and cultivar development in the Southwest. Am. J. Potato Res. 88:45. 12. Holm, D.G., S.Y.C. Essah, J.C. Miller, Jr., R.G. Wilson, and J.J. Nunez. 2011. Potato breeding and cultivar development in the Southwest. Amer. J. Potato Res. 88:45. (Abstr). 13. Knowles, N.R., M.J. Pavek, C. Hiles, L.O. Knowles and Z.J. Holden. 2011. Nitrogen Management Affects Tuber Physiological Maturity and Retention of Processing Quality. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:49. 14. Knowles, N.R., M.J. Pavek, J.C. Stark, M.I. Vales. 2011. Potato Variety Development and Improvement in the Northwest. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:48. 15. Kulen, O., Stushnoff, C., Davidson, R. D., and Holm, D. G. 2011. Gibberellic acid and ethephon alter potato minituber bud dormancy and improve seed tuber yield. Am. J. Potato Res. 88:167-174. 16. Madiwale, G. P., Reddivari, L., Holm, D. G., and Vanamala, J. 2011. Storage elevates phenolic content and antioxidant activity but suppresses antiproliferative and pro-apoptotic properties of colored-flesh potatoes against human colon cancer cell lines. J. Agric. Food Chem. 59:8155-8166. 17. Miller, C., D. Scheuring, and J. Koym. 2011. Texas Potato Breeding Report, 2010. Texas AgriLife Research, College Station and Lubbock. 394p. 18. Miller, C., J. Koym, and D. Scheuring. 2011. 2011 Field Day Handbook. July 20, 2011. Texas Potato Variety Development Program. Texas AgriLife Research, College Station and Lubbock. 29p. 19. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, and J.P. Miller. 2011. Southwest Regional Potato Variety Trial Report 2010. Texas AgriLife Research, College Station and Lubbock. 22p. 20. Navarre, R., S. Kumar, R. Shakya, A. Goyer, M. Martin, C. Brown, M. Pavek, R. Knowles, M.I. Vales and Z.J. Holden. 2011. Changes in Phytonutrient Content during Tuber Development and Identification of Phytonutrient-Rich New Potatoes. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:56. 21. Novy, R.G., J.L. Whitworth1, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A late blight resistant potato cultivar having a low incidence of sugar ends and high specific gravity. Am. J. Pot. Res, DOI 10.1007/s12230-011-9224- 22. Pavek, M.J. and Z.J. Holden. 2011. Put to the Test: A Forty Six Year Assessment of Commercial Potato Seed Lots Planted in Washington. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:61. 23. Pavek, M.J., N.R. Knowles, C.D. Hiles, and Z.J. Holden. 2011. The Economics Behind In-season Nitrogen and Potato Production. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:61. 24. Pavek, M.J., R. Knowles, J.C. Stark, M.K. Thornton, B.A. Charlton, F. Goktepe, C.R. Brown, R.G. Novy, J.L. Whitworth, and J. Debons. 2011. Challenges and Accomplishments of the U.S. Northwest Potato Variety Development Program. Abstracts of the 18th Triennial Conference of the European Association for Potato Research, Oulu, Finland, 24-29 July, p. 110. 25. Pierson, E.A., D.C. Scheuring, D.C. Henne, J.L. Jifon, J.G. Levy, S.D. Turner, and J.C. Miller, Jr. 2011. Evaluation of Potentially Zebra Chip-tolerant Advanced Selections in Insect Preference Trials. Amer. J. Potato Res. (Abstr). (In Press). 26. Report for the 2011 Open House and Clonal Evaluation Meeting. 54pp. (Unpub). 27. Turner, S.D., L. Reddivari, R. Navarre, D.C. Scheuring, and J.C. Miller, Jr. 2011. Effects of Bioactive Compounds from Different Potato Genotypes on Prostate Cancer Development in Athymic Nude Mice. National Association of Plant Breeders, 2011 Annual Conference, Texas A&M University, College Station, May 23-25, Abstracts, p57. (Abstr). 28. Turner, S.D., L. Reddivari, R. Navarre, D.C. Scheuring, and J.C. Miller, Jr. 2011. Effect of Purple and White Potato Extracts on Prostate Cancer Development in Athymic Nude Mice. Amer. J. Potato Res. (Abstr). (In Press). 29. Vales, M.I., C.R. Brown, D.C. Hane, S.R. James, C.C. Shock, B.A. Charlton, S. Yilma, A.R. Mosley, D. Culp, E. Feibert, J.C. Stark, M.J. Pavek*, N.R. Knowles, R.G. Novy, J.L. Whitworth, S. Jansky. 2011. Purple Pelisse: A Tri-State Specialty Fingerling Potato with Purple Skin and Purple Flesh. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:67. 30. Whitworth J., R.Novy, J.C.Stark, J.J.Pavek, D.L.Corsini, S.L.Love, N.Olsen, S.Gupta, T.L.Brandt, M.I.Vales, A.R.Mosley, S.Yilma, S.R.James, D.C.Hane, B.A.Charlton, C.C.Shock, N.R.Knowles, M.J.Pavek, J.S.Miller, C.R.Brown. 2011. Alpine Russet: A potato cultivar having long term tuber dormancy making it suitable for processing from long-term storage. Am J Potato Res 88:256-268. 31. Whitworth, J.L., R.G. Novy, J.C. Stark, J.J. Pavek, D.L. Corsini, S.L. Love, J.S. Miller, M.I. Vales, A.R. Mosley, S. Yilma, S.R. James, D.C. Hane, B.A. Charlton, C.R. Brown, N.R. Knowles, M.J. Pavek. 2011. Yukon Gem: a new yellow-fleshed variety with late blight resistance and differential resistance to PVY strains. Abstract: The 94th Annual Meeting of the Potato Association of America. Am J Potato Res 88:69.

Impact Statements

Colorado State University releases accounted for 57% of the 54,000 acres planted to fall potatoes in Colorado in 2011. Colorado cultivars and clonal selections accounted for 50% of the 13,286 acres of Colorado certified seed in 2011. Three of the top 10 russet cultivars grown for seed in the U.S. [Canela Russet (#6), Rio Grande Russet (#7), Russet Norkotah-S3 (#8) in 2010 were developed by the Colorado program. For reds Sangre-S11 ranked #7. For colored-fleshed specialties, Mountain Rose and Purple Majesty both ranked #1 among red- and purple-fleshed cultivars.
Ranger Russet, Umatilla Russet and Western Russet, were the 3rd, 4th, and 5th most widely grown varieties in Idaho in 2011, respectively, and they accounted for 17% of the planted acreage in Idaho in 2011.
In OR, Ranger Russet, Umatilla Russet, Alturas, Premier Russet, and Modoc ranked 2nd, 4th, 6th, 7th, and 8th, respectively, and they accounted for 38% of Oregon‘s total potato acreage.
Umatilla Russet, Ranger Russet, Alturas, and Premier Russet were the 2nd, 4th, 5th, and 8th most widely grown cultivars in WA in 2011, respectively, and they accounted for 39% of Washington‘s total acreage.
Varieties recently released by the Tri-State program are now produced on over 115,000 acres in the Pacific Northwest. The contribution of the Tri-State Potato Variety Development Program to the U.S. potato industry was recognized in 2010 with two awards. The first award was given by the Far West Region of the Federal Laboratory Consortium for Technology Transfer for Outstanding Regional Partnership. The second award acknowledged five ARS scientists within the Tri-State Program for Outstanding Efforts in Technology Transfer.
The responses of new varieties to nitrogen fertilizer rates were compared with that of the industry standard, Russet Burbank. Within the range of yields produced in the trials, Alturas required about 40% less N than Russet Burbank for a given yield goal, while Classic Russet, Clearwater Russet, Premier Russet and Umatilla Russet required about 20-25% less N. Production of these varieties in ID, OR, and WA in 2011, potentially reduced the amount of nitrogen applied to the soil by 4.8 million pounds compared with the same acreage planted to the old standard, Russet Burbank.
In 2010, three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked fourth among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank, Frito Lay varieties, and Ranger Russet. Virtually all of the russet potatoes grown in Texas in 2011 were to the improved Texas Russet Norkotah strains. From 2008 through 2010 the average summer crop yield in Texas was reported to be the highest in the nation among the 11 summer crop producing states.
Trials in Kern and Siskiyou County help breeders choose advance selections suited to California growing conditions. Varieties evaluated in the Southwest and Western Regional programs including Rio Grande Russet, Colorado Rose, Russet Norkotah strains TX112, TX223, TX278, 296, CO3, CO8, and Classic Russet account for more than 50% of California‘s Russet acreage.

Date of Annual Report: 03/25/2013

Report Information

Annual Meeting Dates: 01/28/2013 - 01/28/2013
Period the Report Covers: 01/01/2012 - 12/01/2012

Participants

Lewis Michael D mlewis@fmtc.com
AWC;
Martin Mel melvin@melsconsulting.com
Retired;
Miller Creighton jcmillerjr@tamu.edu
TAMU;
Navarre Roy roy.navarre@ars.usda.gov
USDA-ARS;
Novy Rich rich.novy@ars.usda.gov
USDA-ARS;
Pavek Mark mjpavek@wsu.edu
WSU;
Salaiz Tom thomas.salaiz@mccain.com
McCain Foods USA;
Sathuvalli Vidyasagar vidyasagar@oregonstate.edu
OSU;
Scheuring Douglas d-scheuring@tamu.edu
TAMU;
Schneider Brian brian.schneider@ars.usda.gov
USDA-ARS;
Shelton Seth sheltse@hotmail.com
WSU;
Shock Clint clinton.shock@oregonstate.edu
OSU/MES;
Spear Rhett rhett.spear@wsu.edu
WSU;
Thornton Mike miket@uidaho.edu
UI;
Topliff Tim tim.topliff@conagrafoods.com
Lamb Weston;
Wada Chris chris@wadafarms.com
Wada Farms;
Wilson Rob rgwilson@ucdavis.edu
UC-TREC;
Yilma Solomon solomon.yilma@oregonstate.edu
OSU;
Zommick Daniel dzommick@wsu.edu
WSU;

Brief Summary of Minutes

Chair: Rob Wilson

Secretary: Lorie Ewing

Call to Order: Rob Wilson called the meeting to order at 11:00 am.

Introductions: Attendees introduced themselves. An attendance list is included.

Approval of Agenda and Minutes: A motion to accept the 2012 minutes and the current agenda was made by Mark Pavek and seconded by Creighton Miller. The motion passed unanimously.

NIMSS Update: Donn Thill was unable to attend due to weather conditions, but sent an email reminding everyone that the duration of WERA027 is October 1, 2010 to September 30, 2015. Any discussion of termination of the project should keep this in mind. He also included information from NIMSS appendix A relating to the health of a project, with a recommendation to carefully weigh the advantages of keeping the project against reasons to terminate the project.

State Reports:
The complete written state reports for Idaho, Washington, Oregon, California, Texas and Colorado are in an attachment.

Oregon, Washington, and Idaho: Reports were presented in the Tri-State Meeting. These states did not have any new to report.

ARS/Prosser: Chuck Brown reported on Columbia Root Knot Nematode. Washington had a very hot summer with higher than average night temperatures. There is some indication that the gene for resistance breaks down under high night temperatures. They will check this with further studies. He also reported on PVY resistance in the breeding material using a marker. He concluded there is a penalty in quality for selecting resistance and that we tend to over-select for sensitivity to PVY when looking at other factors. Last season Mop Top was found in the field. 70% of symptomatic tubers tested positive and 30% of asymptomatic tubers tested positive for Mop Top. Chuck also talked about some phyto-nutrient work and selecting for super high levels of carotenoids.

California: Rob Wilson presented the California Report. Two variety trials were conducted in the state, at Tulelake and the Bakersfield area. These included a second year variety management trial with Classic Russet looking at fertilizers and bruising; and a new study looking at timely vine kill and soil moisture on yields of Classic Russet. Reports will be out soon.

Texas: Creighton Miller presented this report. Out of 67,000 seedlings, Texas had 507 selections. Texas had a successful field day with people from Canada to Mexico coming to learn about Zebra Chip. Zebra Chip has been the main focus recently with $1.6 million in funding coming from the state; however this past year that amount was cut in half. They have found varying degrees of resistance to Zebra Chip. Creighton reported Russet Norkotah selections 112, 278 and 296 have done well and are now the number third or fourth highest in acreage of certified seed. ATTX961014-1R/Y has been submitted for PVP as Sierra Rose.

Colorado Report: Dave Holm presented this report. Three selections to be named are AC99329-7PW/Y (Masquerade), CO99053-3RU (Crestone Russet), CO99100-1RU (name to be determined).

PVMI Report: Jeanne Debons presented the PVMI report during the Tri-State meetings and did not have anything new to report.

Results were reported for the 2012 Western Regional Trials.
Early and Late Trials: Rich Novy presented these results. A01010-1 has some merit. A02507-2LB is resistant to Late Blight and cold sweetening resistant. AO02183-2 is a very nice clone, but has high glycoalkaloids. PA00N14-2 has small, long tuber size, resistant to Corky Ringspot. AO00057-2 has limited seed available.

Post Harvest Results: Rick Knowles presented the post-harvest results. A02138-2, A02507-2LB, AO02183-2 and AO96305-3 had the highest overall rating. A01010-1 had only 24% Blackspot bruising compared to Ranger Russet with 100%. AO02183-2 had good heat tolerance, but high levels of glycol-alkaloids.

Regional Chipping Trial: Presented by Dave Holm. A00188-3C and CO02321-4W had better chip color than the standards. Acrylamide and asparagine in the chipping process was discussed.

Red/Specialty Trial: Presented by Jeff Koym. Yukon Gold had low yields. OR04131-2 had highest yields. Red LaSoda had a high percentage of Hollow Heart in Colorado and California. So did COTX01403-4RY and CO04013-1WY. CO04013-1WY also had high levels of Internal Brown Spot in Texas.

Disposition of Entries:
Russet Trials: The following entries graduated from the Western Regional Russet trial: A01010-1, AO00057-2, AO96305-3, PA00N14-2. The following entries were advanced into the Western Regional Russet Trial from the Tri-State Trial: A02424-83LB, AO01114-4, OR05039-4, POR06V12-3. The following entry was advanced into the Early Russet Trial from the Tri-State Trial: A02062-1TE. The returning and new entries include: Ranger Russet, Russet Burbank, Russet Norkotah, A02138-2, A02507-2LB, A03158-2TE, AC00395-2RU, AO02060-3, CO03187-1RU, CO03276-5RU, A02062-1TE, CO04220-7RUCO04233-1RU, AOTX98152-3RU. AO02183-2 may be returned if TGA results are acceptable. Roy Navarre will try to get tests done before seed is shipped. The Early Trial has 15 entries and the Late Trial has 13 entries. New entries seed will be supplied by the state. Returning entries seed will be supplied by Oregon.

Red/Specialty Trials: The following entries graduated from the Western Regional trial: CO00291-5R, OR04131-2, COTX01403-4R/Y, POR05PG56-1, OR04036-5. Returning and new entries include: Dark Red Norland, Red LaSoda, Yukon Gold, CO04021-2R/Y, CO04013-1W/Y, AC03534-2R/Y, CO04067-8R/Y, NDTX5438-11R.

Chip Trials: The following entry graduated from the Western Regional trial: A01143-3C and will be fast tracked. The following entries were advanced into the Western Regional Chipping Trial from the Tri-State Trial: A00188-3C, AC03433-1W, and CO03243-3W. The returning and new entries include: Atlantic, Chipeta, A00188-3C, AC01151-5W, AC03433-1W, CO02024-9W, CO02033-1W, CO02321-4W, CO03243-3W, AC00206-2W, AC03452-2W.

Seed Supply and Shipping List: Seed supplies and shipping lists were discussed. Brian Charlton will send out a list of available seed. He plans to start packing Feb 10, so would like requests soon. TX and CO will send out seed of their new lines. Discussion of appropriate checks for Red lines decided Chieftain will replace Dark Red Norland as a check. We may have to buy seed to have enough.

Discussion of Standardized Data Reporting Format: There was some discussion via emails and at Tri-State meetings. Is it better to use diameter or weight for specialty lines? Some states use mechanization by weight, others by hand. Some companies use sizers (diameter).

Additional Business: Discussion regarding trial coordination of Red Specialty varieties. Brian Charlton and Mark Pavek decided Oregon and Washington would not be able to participate in these trials due to financial constraints.

2014 Meeting Date and Location: The 2014 meeting site will be in Kennewick, WA on the Monday before the WA/OR potato conference.

Election of Secretary: Tom Drader was elected Secretary.

Meeting was adjourned at 1:20 pm

Accomplishments

California: In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. California harvested potato acreage totaled 38,300 in 2012. California currently lacks a public potato breeding program and instead works closely with the Southwest and Western Regional programs for breeding stock and advance selections. Work in Tulelake included evaluation of 78 advance selections in three replicated trials in 2012. Verticillium wilt susceptibility screening was conducted on all Western Region selections in Tulelake. Horticultural evaluations at Tulelake in 2012 focused on determining nitrogen fertilization recommendations for advanced selections and released entries. Multiple potato pest management trials were conducted in Tulelake in 2012. Colorado: The major objectives of the Colorado Potato Breeding and Selection Program are: (1) to develop new potato cultivars (russets, reds, chippers, and specialties) with increased yield, improved quality, improved nutritional characteristics, resistance to diseases and pests, and tolerance to environmental stresses; (2) to collaborate with growers, shippers, processors, and research personnel to assess the production, adaptability, marketability, and other characteristics of advanced selections from the Colorado program; (3) to provide a basic seed source of selections to growers for seed increase and commercial testing; and (4) to evaluate promising selections for potential seed export (interstate and international). The primary emphasis is placed on the development of russet cultivars. The balance of the breeding effort is devoted to developing red, specialty, and chipping cultivars. This broad approach is important because it recognizes the diverse markets accessed by potato growers throughout Colorado and many other states in the region. Seventy-five advanced selections were saved and will be increased in 2013 pending results of ongoing evaluations. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by Colorado producers in 2012, included 12 russets (CO04211-4RU, CO04220-7RU, CO04233-1RU, AC00395-2RU, CO03187-1RU, CO03202-1RU, CO03276-4RU, CO03276-5RU, AC99375-1RU, CO99053-3RU, CO99053-4RU, and CO99100-1RU), 4 reds (CO04159-1R, CO00291-5R, CO99076-6R, and CO99256-2R), 11 chippers (AC00206-2W, AC03452-2W, AC01151-5W, AC03433-1W, CO02024-9W, CO02033-1W, CO02321-4W, CO03243-3W, CO00188-4W, CO00197-3W, and CO00270-7W), and 22 specialties (AC03534-2R/Y, CO04029-5W/Y, CO04067-8R/Y, CO04099-3W/Y, CO04099-4W/Y, CO04188-4R/Y, CO04056-3P/PW, CO04063-4R/R, CO03134-4RF/RW, CO04021-2R/Y, CO04013-1W/Y, CO97226-2R/R, CO97232-2R/Y, CO97222-1R/R, CO97227-2P/PW, AC99329-7PW/Y, AC99330-1P/Y, CO99045-1W/Y, ATC00293-1W/Y, CO00405-1RF, CO00412-5W/Y, and CO00415-1RF). Several selections are being considered for exclusive release. Selections to be named are AC99329-7PW/Y (Masquerade), CO99053-3RU (Crestone Russet), CO99100-1RU (name to be determined). Idaho: Variety Development. In 2012, we completed the release of three new potato varieties including Teton Russet (A0008-1TE), Huckleberry Gold (A99326-1PY) and Palisade Russet (A97066-42LB). Corresponding PVP and PBR applications were also prepared and submitted. Arrangements were made with industry to conduct commercial trials of each of these varieties. We had four russet varieties in the Western Regional Trials in 2012 including A01010-1, A02138-2, A02507-2LB and A03158-2TE. A01010-1 is a high yielding selection with high percent U.S. No. 1s and good blackspot bruise resistance. A02138-2 and A02507-2LB are low acrylamide selections with good processing quality, but A02507-2LB also has resistance to a wide range of diseases including late blight, PVY, black dot and pink rot. A03158-2TE was a top yielding selection in both the early and late regional trials with excellent culinary quality and shows excellent promise for both fresh pack and processing. We also had 16 russet varieties in the early and late season Tri-State Variety Trials and 7 in the Tri-State Specialty trial. Management Studies. Studies designed to evaluate the responses of 5 of the Tri-State releases to reduced amounts of irrigation were conducted at Aberdeen in 2012. Alpine Russet, Alturas, Clearwater Russet, Premier Russet Umatilla Russet and Russet Burbank were irrigated during the growing season at; 100% ET, 75% ET, or 50% ET. Response to Reduced Pesticide Application. Studies were conducted in 2012 as part of an ISDA-SCBG research project at Parma and Aberdeen to evaluate the potential for reducing pesticide rates on new varieties from the Tri-State. Varieties included in this study were Alpine Russet, Alturas, Clearwater Russet, Premier Russet and Umatilla Russet, and Russet Burbank. Results have continued to show that pesticide rates for most of these varieties can be reduced substantially in comparison to Russet Burbank. Management Guidelines. Cultural and storage management guidelines were developed for Teton Russet and Palisade Russet and were posted on the PVMI website. Cultural management guidelines were also developed for Huckleberry Gold. In addition, an extension bulletin addressing storage management for Blazer Russet was published in 2012. Oregon: The OR variety development program (OVDP) plays key role in the Tri-State potato variety development program. The OVDP consists of four cooperating research sites: Department of Crop and Soil Science (CSS), Corvallis; Hermiston Agricultural Research and Extension Center (HAREC), Hermiston; Klamath Basin Research and Extension Center (KBREC), Klamath Falls; and Malheur Experiment Station (MES), Ontario. All sites participate in early-generation selection and conduct preliminary and advanced testing of clones. In addition, each OR site provides unique services to the program including screening for disease, and other resistances, productivity, seed increases and quality evaluations that are unique to each production area. Oregon statewide trials included 25 russet, 6 chipping and 6 specialty clones. Of these clones 8 russet clones were promising and will be evaluated further in advanced trials. None of the chipping and specialty clones were selected for advanced testing because of their poor performance compared to the checks. Four russet and three specialty clones were evaluated in regional trials of which two russet clones (AO00057-2 and AO02060-3) will be retained for further evaluation in 2013. Commercial interest will be solicited for OR04131-2, POR05PG56-1 and OR04036-5 to see if continued testing is warranted. These clones have completed three years of Regional evaluation. In the Tri-state trials, four russet clones and seven specialty clones were evaluated and all the four russet types and three of seven specialty clones were selected for advanced testing. Texas: 67,193 first year seedlings, resulting from 647 different parental combination or families (crosses), were grown for selection on the Barrett Farm (32,549) near Springlake and on the CSS Farm (34,644) near Dalhart. 507 original selections were made. 39 clones were intercrossed at Lubbock to produce 45 families. We received seedlings tubers from the Idaho (4,726), Oregon (18,508), Colorado (18,088), North Dakota (17,184), and new this year Wisconsin (3,247) breeding programs. We grew 5,440 tuberlings in the greenhouse at College Station from true seed and sent tuberlings to Colorado (3,448), Idaho (710), and North Dakota (1,745). Evaluation trials were conducted at Weslaco (winter - December 6 planting, April 14 harvest), Springlake (spring March 24-31 planting, July 24 and 31 August 2 harvests), and Dalhart (fall May 7-11 planting, September 3,10,17,18, and October 1 and 7 harvests) 901 advanced selections/new cultivars were tested in 38 separate trials. This involves both planting and harvesting over a six month period. Western Regional Trials were conducted at both Springlake (Chip, Russet and Red/Specialty) and Dalhart (Chip). The Texas Program had four entries in the Western Regional Red/Specialty Trial (ATTX98453-6R, ATTX98468-5R/Y, COTX01403-4R/Y, and ATX03564-1Y/Y). The Texas program had six entries (COTX04015-3AW/Y, AOTX02136-1Ru, ATTX98453-3R, COTX02172-1R, and COTX02293-4R) in the Southwestern Regional Trials. We were a cooperator in the Fast-Track NPC Chip Trial. The Texas Field day was held on July 19 at Springlake, which included attendees from Canada to Mexico. David Holm and Caroline Grey from the Colorado Program were in attendance. A major effort of our program continues to center on our involvement in the SCRI Zebra Chip Project. Emphasis on virus testing and clean-up continued. Virtually all of the russet potatoes grown in Texas in 2012 were the improved Texas Russet Norkotah strains. Over the past several years, Texas recorded the highest summer crop yields in the nation (440-465 Cwt/A) among the 11 states producing a summer crop. In 2011, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked in the fourth position among the top 50 US varieties in acres accepted for seed certification, behind Russet Burbank, Frito-Lay varieties, and Ranger Russet. We applied for PVP for ATTX961014-1R/Y (Sierra Rose). Washington: We developed petiole nitrate recommendations for Alpine Russet, Classic Russet, Sage Russet, Owyhee Russet, Ranger Russet, Russet Burbank, Umatilla Russet, and Teton Russet, which are designed to maximize economic return in the Columbia Basin. Through a field and taste panel testing, we are in the middle stages of identifying which new fresh pack varieties will bring growers more revenue while satisfying consumers palates. Weve been testing 12 varieties: all Norkotah strains, 6 unnamed clones, Classic Russet, Teton Russet, and Russet Burbank. Thus far two varieties have excelled by providing outstanding economic return with good palatability: A03158-2TE, and Teton Russet. After comparing nine varieties for phosphorous efficiency across two years we found that some varieties are less affected by lack of phosphorous than others, however, all varieties appear to respond positively to the addition of P, when P is deficient. In a taste panel study the major component of the research project is the inclusion of a scientifically sound taste panel. The taste testing will be completed under the supervision of the WSU food lab. The labs procedures are recognized throughout the scientific community as being acceptable to detect differences in the food being tested. Tri-State - ID, WA, OR: From 2009 through 2013, the following potato varieties were officially released by the Northwest Potato Variety Development (NWPVD) Program (also known regionally as the Tri-State Program): Classic Russet (2009), Alpine Russet (2009), Clearwater Russet (2009), Owyhee Russet (2009), Red Sunset (2009), Crimson Red (2009), Purple Pelisse (2009), Sage Russet (2010), AmaRosa (2010), Teton Russet (2011), Palisade Russet (2011), Huckleberry Gold (2011) and Yukon Nugget (2013). All varieties developed by the NWPVD Program have been licensed to the Potato Variety Management Institute (PVMI), a non-profit organization working on behalf of the program to promote and market varieties since 2005. Detailed information about these and other NWPVD varieties can be found at www.pvmi.org. In 2012, the Idaho contingent evaluated the productivity and quality of potato clones in 36 trials at six locations across the southern part of the state. Particular emphasis was placed on selecting for potential new varieties with adaptation to local conditions, dual utility with use in both fresh and processing markets, production efficiencies, and multiple disease resistances. There were also 25 acres of single hills (first field generation) evaluated, totaling approximately 100,000 breeding clones and over 2000, 12-hill (second field generation) selections. The third year of trialing at Aberdeen, Idaho for a tetraploid mapping population in the SolCAP project was completed in 2011, with agronomic, disease, and processing data being utilized to link traits of interest in potato, particularly carbohydrate metabolism, with molecular markers. A subset of 43 clones of the tetraploid SolCAP mapping population and their parents were trialed in 2012 as a component of the SCRI Acrylamide Reduction project to validate SolCAP marker associations for tuber carbohydrate composition. Such markers are used to facilitate the development of low acrylamide potato varieties. In 2012, a National Fry Processing Trial (NFPT) was continued for a second year with the support of the potato processing industry and the United States Potato Board and National Potato Council. The purpose of the trial was to evaluate processing varieties and promising breeding clones from the U.S. breeding programs for agronomics in the field as well as levels of sugars, asparagine, and acrylamide from the field and following extended storage. Aberdeen, ID and Othello, WA were two of five trial sites and were overseen by the ID and WA components of the Tri-State program. Preliminary data from the NFPT looks promising for the identification of low acrylamide processing varieties for the potato industry that also meet QSR processing standards. These include five clones (A0012-5, A0073-2, A03921-2, A02507-2LB and A02138-2) from the Tri-State program, which have been selected for seed production fast-tracking in preparation for commercial-scale processing trials. Progress has continued in identifying corky ringspot resistant germplasm that also has desirable yield, quality and tuber appearance characteristics with further evaluations of breeding material in corky ringspot infected fields. In addition, the breeding program is progressing in the evaluation and identification of germplasm with genetic resistances to potato viruses X and Y (PVX, PVY), Potato leafroll virus (PLRV), late blight (foliar and tuber), nematodes, potato mop-top virus, zebra chip, and potato psyllid (insect vector for Liberibacter responsible for zebra chip). Research detailing resistance to potato psyllid and possible resistance to Liberibacter in germplasm from the Aberdeen breeding program was published. Research was continued this year to evaluate resistance of the advanced Tri-State selections to powdery scab and black dot. A bacterial artificial chromosome (BAC) library was constructed from the genome of S. etuberosum to aid in the fine mapping and cloning of the Rlretb gene (Kelly et al., 2009). This gene, identified at Aberdeen, ID, is a major gene for resistance to PLRV, a primary virus of potato that causes loss of yield, as well as quality through the development of net necrosis in tubers infected with PLRV. Progress was made in developing molecular markers closely linked to the Rlretb gene. A study, funded by the Tri-State Potato Commissions, also has been initiated by to develop methodology for determining gene dosage of virus and nematode resistance genes. The number of genes present in parental clones can aid potato breeders in designing crosses to facilitate obtaining a larger percentage of resistant progenies. Cold-sweetening resistance is also an objective of the program and Premier Russet and Clearwater Russet are recent examples of our success in this area of research. Such low-sugar varieties also contribute to reductions in acrylamide formation in processed potato products, with reducing sugars being a primary contributor to the formation of acrylamide. In the 2011 NFPT, Premier Russet was the second lowest for acrylamide among named varieties averaged across sample times and sites, reflective of its low tuber sugar levels. The lowest acrylamide variety was Dakota Trailblazer which originated as a seedling tuber from the Aberdeen potato breeding program. Asparagine also contributes to acrylamide formation and the lower asparagine concentrations in Teton Russet provide the industry with an alternative approach for reducing acrylamide levels in processed potato products. Three additional field trials were established in 2012 at Aberdeen, ID and Klamath Falls, OR to facilitate the identification of specialty varieties suitable for the western and eastern growing regions of Idaho. Evaluations of the 18 clones entered into the trial were based on yield, grade, culinary quality and nutritional characteristics. In addition, nine field studies were completed in 2012 to develop management guidelines for new varieties. These studies addressed nitrogen fertilizer requirements, optimal plant spacing and seed piece size, irrigation management and water stress responses, herbicide tolerances and storage management requirements. Management guidelines for the new cultivars were published on the University of Idaho Potato Center and PVMI websites (www.cals.uidaho.edu/potato; www.pvmi.org). Breeding efforts at OSU complement and enhance those of the USDA/ARS programs in Aberdeen, ID and Prosser, WA by incorporating disease and pest resistances using multi-trait genotypic recurrent selection. Molecular techniques have been refined, which should hasten the transfer of desirable genes among varieties and introgression of novel genes from related wild species. Recent collaborations with USDA/ARS faculty at Aberdeen, ID resulted in the combination of PVY, PVX, and pale cyst nematode resistance in a single cross using molecular markers. OSU has recently validated the use of similar markers to screen for resistance to Columbia root-knot nematode (CRKN) and late blight Rb genes. An effort to develop Russet-All association mapping panel was initiated in collaboration with other breeding programs across the U.S. This genome-wide association mapping panel will include wild germplasm and elite breeding material which will help in discovery of novel alleles and also to characterize genetic variation more useful for breeding. In 2012, the OSU group conducted 25 field trials in four production regions (Hermiston, Klamath Falls, Ontario, and Corvallis). A total of 50,000 seedling tubers were planted at the Klamath Basin Research & Extension Center (KBREC) with 2.2% retained for further evaluation. Six hundred ninety seven 4-hill (second field generation) selections were planted at Hermiston and Klamath Falls (76% russets; 17% fresh market red, yellow, and specialty types; and 7% chipping) with 151 retained for further evaluation. Eighty 20-hill selections (third field generation) were evaluated in two-replicate trials at Hermiston, Klamath Falls, and Ontario with 24 retained for further evaluation. Approximately, 60,000 seedling tubers were generated in Corvallis greenhouses in 2012 with approximately 70% TPS derived from USDA/ARS Aberdeen, ID crosses and the remainder originating from USDA/ARS Prosser, WA and OSU. The largest seedling tuber (A-size) from each family was reserved for single-hill planting at Klamath Falls. Disease /pest/abiotic stress resistance trials were performed at Corvallis (late blight), Hermiston (Verticillium wilt/early die, PVY, PLRV, and tuber worm), and Klamath Falls (root-knot nematode). As part of the National Chip Processing Trials (NCPT), three additional field trials were established at the Hermiston Agricultural Research & Extension Center (HAREC) to evaluate chipping clones for the Columbia Basin. During 2012, the Washington contingent conducted 33 field trials in the Columbia Basin and western Washington including variety trials, stand establishment, fertility, intra- and inter-row spacing, heat stress, and seed productivity studies. Economic evaluations of Tri-State and Regional clones were completed and many clones produced higher returns than Russet Burbank, Russet Norkotah and Ranger Russet. Postharvest storage, processing quality, and culinary evaluations were completed for the 2012 trials. Washington State University researchers evaluated retention of postharvest quality of russet entries in the late season management trials from all sites across the tri-state region. Tubers from the Tri-State and Regional cooperative trials were stored at three temperatures and evaluated for resistance to low temperature sweetening, fry color, texture, consumer preference, dormancy, reconditioning ability, rot resistance, and tuber specific gravity. The more advanced late regional trial entries were also screened to identify those with inherently low levels of asparagine.

Publications

Bamberg, J. and J.C. Miller, Jr. 2012. Comparisons of ga1 with other reputed gibberellin mutants in potato. Amer. J. Potato Res. 89:142-149. Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Manipulating stem number, tuber set and size distribution in specialty potato cultivars. Am J Pot Res (online first, DOI 10.1007/s12230-013-9317-0). Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Evidence that tuber respiration is the pacemaker of physiological aging in seed potatoes (Solanum tuberosum L.). J Plant Growth Regul (online first, DOI 10.1007/s00344-013-9338-4). Blauer, J.M., Kumar, G.N.M., Knowles, L.O., Dhingra, A. and N.R. Knowles. 2013. Changes in ascorbate and associated gene expression during development and storage of potato tubers (Solanum tuberosum L.). Postharvest Biol Tech 78:76-91. Blauer, J.M., L.O. Knowles, and N.R. Knowles. 2012. Evidence that tuber respiration is the pacemaker of aging in seed potatoes. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:126. Brown, C.R. I. Vales, S. Yilma, S. James, B. Charlton, D. Culp, D. Hane, C. Shock, E. Feibert, M. Pavek, R. Knowles, R. Novy, J. Whitworth, J. Stark, J. C. Miller, Jr., D. Holm, R. Quick and R. Navarre. 2012. AmaRosa, a red-skinned, red-fleshed fingerling with high phytonutrient value. American Journal of Potato Research 89:249-254. Brown, C.R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller, Jr. 2012. Stability and broad-sense heritability of mineral content in potato: Calcium and Magnesium. American Journal of Potato Research 89:255-261. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Maximizing nitrogen use efficiency for optimum tuber yield and quality of a new Colorado potato cultivar. Am. J. Potato Res. 89:34. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Seed size and seed reconditioning influences field emergence, tuber yield, and quality of potato. Electronic Conference Proceedings (Abstracts), World Potato Congress, Edinburgh, Scotland, United Kingdom. May 2012. Holm, D.G. and Gray, C. 2012. 2011 Potato Breeding and Selection Research Report to the San Luis Valley Research Center Committee and the Colorado Potato Administrative Committees (Area II and III). 134pp. (unpub). Jayanty, S. S. and Holm, D. G. 2012. Volatile compounds analysis in colorado potato cultivars and advanced selections using solid phase micro extraction technique (SPME). Am. J. Potato Res. 89:39. Knowles, N.R. and M.J. Pavek. 2013. WSU potato cultivar yield and postharvest quality evaluations for 2012. Washington State University Special Report. (in press) Knowles, N.R. Blauer, J.M. and L.O. Knowles. 2012. Aging of seed potatoes: physiological process and consequences for production. Plant Management Network (APS, ASA, CSSA) http://www.plantmanagementnetwork.org/infocenter/topic/focusonpotato/ Knowles, N.R., J.M. Blauer and L.O. Knowles. 2012. Shifting potato tuber size distribution with plant growth regulators. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 20-28. Knowles, L.O. and N.R. Knowles. 2012. Toxicity and metabolism of exogenous ±,²-unsaturated carbonyls in potato (Solanum tuberosum L.) tubers. J Ag Food Chem 60: 11173-11181. Knowles, N.R., M.J. Pavek*, N. Fuller, L. Knowles. 2012. Post harvest quality of clones in the Western Regional Variety Development Program. Washington State Potato Commission Progress Reports for the year 2011. pp 165-189. Knowles, N.R., L. Knowles, G.N.M. Kumar, M.J. Pavek*. 2012. Developmental profiles & physiological processes affecting quality of seed & processing potatoes. Washington State Potato Commission Progress Reports for the year 2011. pp 138-164. Kumar, G.N.M. and N.R. Knowles. 2012. Zebra chip (ZC) infection affects tuber protease inhibitor levels and protein content. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res90:137-138. Madiwale, G.P., Reddivari, L., Holm, D.G., Stone, M., and Vanamala, J. 2012. Combined effects of storage and processing on the bioactive compounds and pro-apoptotic properties of color-fleshed potatoes in human colon cancer cells. J. Agric. Food Chem. 60:11088-11096. McCue,K., G.Ponciano, D.Rockhold, J.Whitworth, S.Gray, Y.Fofanov, and W.Belknap. 2012. Generation of PVY Coat Protein siRNAs in Transgenic Potatoes Resistant to PVY. American Journal of Potato Research. 89:374-383. Miller, C., D. Scheuring, and J. Koym. 2012. Texas Potato Breeding Report, 2011. Texas AgriLIFE Research, College Station and Lubbock. 384p. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, and J.P. Miller. 2012. Southwest Regional Potato Variety Trial Report 2011. Texas AgriLIFE Research, College Station and Lubbock. 27p. Miller, C., J. Koym, and D. Scheuring. 2012. 2012 Field Day Handbook. July 19, 2012. Texas Potato Variety Development Program. Texas AgriLIFE Research, College Station and Lubbock. 34p. Navarre, D.A,, Payyavula, R.S., Shakya, R., Knowles, N.R., and S.S. Pillai. 2013. Changes in potato phenylpropanoid metabolism during tuber development. Plant Physiol Biochem 65:89-101. Navarre, R., R. Payyavula, S. Kumar, J. Vinson, N.R. Knowles, J. Kuhl, and A. Pantoja. 2012. Secondary metabolism and nutritionally important compounds in potato. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:141. Novy, R.G. J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A Late Blight Resistant Potato Cultivar Having a Low Incidence of Sugar Ends and High Specific Gravity. American Journal of Potato Research 89:89101. Novy, R., J. Whitworth, J. Stark, B. Charlton, S. Yilma, N.R. Knowles, M. Pavek, T. Brandt, N. Olsen, M. Thornton, C. Brown, H. Losoya-Saldana, J. Debons, and M. Vales. 2012. Palisade Russet and Teton Russet: two new potato cultivars from the northwest (Tri-State) potato cariety development program. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:143. Novy, R.G., J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A late blight resistant potato cultivar having a low incidence of sugar ends and high specific gravity. Am J Potato Res 89:89-101, DOI 10.1007/s12230-011-9224-1. Pavek, M.J. and N.R. Knowles. 2012. WSU potato cultivar yield and postharvest quality evaluations for 2011. Washington State University Special Report. 122 pages. Pavek, M.J., Knowles, N.R., Holden, Z.J., and C.D. Hiles. 2012. Nitrogen fertigation in potatoes: application timing, rate, and varietal response. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 29-36. Pavek, M.J., C.H. Pearson-Mims, Z.J. Holden. 2012. Washington commercial seed lot trials. A summary of the 2012 Washington state commercial seed lot trial. Washington State University Special Report. 10 pages. Pavek, M.J., Z.J. Holden, C.D. Hiles. 2012. Washington commercial potato seed lot and demonstration trials. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 247-257. Pavek, M.J., N.R. Knowles, Z.J. Holden, and C.D. Hiles. 2012. In-field testing to identify new potato varieties and best management practices for Washington growers. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 225-246. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Selenium and sulfur content and activity of associated enzymes in selected potato germplasm. Am. J. Potato Res. 89:111-120. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Effects of cooking methods on polyphenols, pigments and antioxidant activity in potato tubers. LWT - Food Science and Technology 45:61-171. Srinivasan,R., D.G.Hall, F.A.Cervantes, J.M.Alvarez, and J.L.Whitworth. 2012. Strain specificity and simultaneous transmission of closely related strains of a potyvirus by Myzus persicae. Journal of Economic Entomology. 105:783-791. Vales, M.I., C.R. Brown, S. Yilma, D.C. Hane, S.R. James, C.C. Shock, B.A. Charlton, E. Karaagac A.R. Mosley, D. Culp, E. Feibert, J.C. Stark, M.J. Pavek, N.R. Knowles, R.G. Novy, and J.L. Whitworth, 2012. Purple Pelisse: A specialty fingerling potato with purple skin and flesh and medium specific gravity. American Journal of Potato Research 89:306314. Whitworth,J., P.Hamm, and P.Nolte. 2012. Distribution of Potato virus Y strains in tubers during the post-harvest period. American Journal of Potato Research. 89:136-141. Whitworth, J.L., Novy, R.G., Stark, J.C., Thornton, M., Yilma, S., Charlton, B.A., Pavek, M.J., Knowles, N.R., and C.R. Brown. 2012. Huckleberry Gold: development of a specialty cultivar within the tri-state variety development program with unique disease resistances. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:155. Yilma, S., M.I. Vales, B.A. Charlton, D.C. Hane, S.R. James, C.C. Shock, A.R. Mosley, D. Culp, E. Feibert, L. Leroux, E. Karaagac, N.R. Knowles, M.J. Pavek, J.C. Stark, R.G. Novy, J.L. Whitworth, J.J. Pavek, D.L. Corsini, T.L. Brandt, N. Olsen, and C.R. Brown. 2012. Owyhee Russet: A variety with high yields of U.S. No. 1 tubers, excellent processing quality, and moderate resistance to Fusarium dry rot (Fusarium solani var. coeruleum). American Journal of Potato Research.89:175-183. Zommick, D.H., L.O. Knowles, G.N.M. Kumar and N.R. Knowles. 2012. Assessing the impact of heat stress on tuber quality. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 51-57. Zommick, D.H., L.O. Knowles, G.N.M. Kumar, and N.R. Knowles. 2012. In-season heat stress compromises postharvest quality and low temperature sweetening resistance in potato (Solanum tuberosum L.). Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90: 156.

Impact Statements

Trials help breeders choose varieties suited to CA growing conditions. Trials allow producers access to CA specific data on variety performance, pest resistance, and cultural management, and they help increase adoption and proper management of new varieties. Many of the varieties with significant acreage in CA were evaluated in the Western Regional program such as Rio Grande Russet, Colorado Rose, Russet Norkotah strains TX112, TX223, TX278, 296, CO3, CO8, and Classic Russet. (CA)
Since 1975, there have been 27 potato cultivars/clonal selections released by Colorado State University or in cooperation with other agencies. Three additional selections are currently being released including AC99329-7PW/Y (Masquerade), CO99053-3RU (Crestone Russet), and CO99100-1RU (named to be determined). (CO)
Colorado State University releases accounted for 58% of the 55,100 acres planted to fall potatoes in Colorado in 2012. Colorado cultivars and clonal selections accounted for 46% of the 13,286 acres of Colorado certified seed accepted for certification in 2012. Advanced Colorado selections accounted for another 5% of the seed acreage. (CO)
Three of the top 10 russet cultivars grown for seed in the U.S. [Russet Norkotah-S3 (#5), Canela Russet (#8), Rio Grande Russet (#10), in 2012 were developed by the Colorado program. For reds, Sangre-S11 ranked #5. For colored-fleshed specialties, Mountain Rose and Purple Majesty both continue to be ranked #1 among red- and purple-fleshed cultivars. (CO)
More than 350 successful crosses were made between promising long russets for fresh market and processing, to a lesser extent chippers, reds and specialties clones. The crosses will integrate the major viruses (PVY, PVX, PLRV) resistant genes, cold sweetening resistance, low acrylamide, and known resistance to tuber worm and potato psyllid, late blight, corky ring spot, and nematodes. (OR)
A total of 60,000 seedling tubers were produced in Corvallis greenhouses. The A sized seedling tubers will be planted in Klamath Falls, Oregon in single-hill. The B size seedling tubers will be distributed for collaborative institutions. (OR)
Molecular marker evaluations was performed for PVY resistance on 147 single hills clones selected in 2011. A total of twenty five resistant clones with the PVY resistant genes were identified for further selection and testing. In collaboration with USDA/Aberdeen program we by were able to pyramid PVY, PVX and potato pale cyst nematode resistance genes in a single cross. (OR)
By using induced mutation and in vitro techniques we have generated clonal variants of Russet Burbank, Russet Norkotah, GemStar Russet and Ranger Russet for further evaluation for drought tolerant and clonal selections. (OR)
Yukon Nugget (POR02PG37-2) release was approved by PVMI and the release documents were submitted to Oregon State University variety release committee for approval. TerraRosa (POR01PG20-12) release is pending awaiting PVMI exclusive sub-licensing. (OR)
Thirteen improved varieties have been developed/co-developed and/or released from the Texas Potato Breeding and Variety Development Program. Virtually all of the russet potatoes grown in Texas in 2012 were to the improved Texas Russet Norkotah strains. (TX)
From 2008 through 2011 the average summer crop yield in Texas was reported to be the highest in the nation among the 11 summer crop producing states. In 2012, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked in the second position among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank. (TX)
The effect of the Tri-State Potato Variety Development Program on the Northwest potato industry has been substantial. The fresh market industry, french fry processors and chippers have incorporated many varieties developed through the Tri-State variety development program into their businesses. (ID, OR, WA)
Ranger Russet, Umatilla Russet, Alturas, Premier Russet, Bannock Russet, Ivory Crisp, Western Russet, and Alpine Russet are examples of russet cultivars released from the Tri-State program that have greatly benefited the United States and Northwest potato industry, being the 3rd, 4th, 7th, 13th, 14th, 16th, 21st, and 22nd most widely grown cultivars in the United States in 2012, respectively, with Tri-State varieties representing over 21%, or 200,000 acres, of the fall crop nationally. (ID, OR, WA)
Up 22,000 acres from 2010, varieties recently released by the Tri-State program are now produced on 137,000 acres in the Pacific Northwest with value to growers estimated at approximately $495 million. Compared with 2010, the 2012 US farm-gate value of Tri-State varieties increased by approximately $80 million. (ID, OR, WA)
Varieties were evaluated for N use efficiency relative to Russet Burbank. Alturas required 40% less N than Russet Burbank, while all of the others required about 20-25% less N. Production of Umatilla Russet, Alturas and Premier Russet in ID, OR, and WA was about 60,000 A in 2012, potentially reducing the amount of N applied by 6 million pounds compared with the same acreage planted to Russet Burbank. In 2012, the potential economic savings to NW growers was over $4.3 million. (ID, OR, WA)
The reduced use of N will reduce the potential for nitrate-contaminated ground water in the region. Reducing N applications by 20-40% provides a considerable economic benefit to growers, environmental benefits and contributes significantly to the sustainability of potato production systems. As improved varieties are adopted, quality and production efficiency will continue to improve, fertilizer and pesticide inputs will decrease, and environmental impact will be lessened. (ID, OR, WA)

Date of Annual Report: 09/23/2014

Report Information

Annual Meeting Dates: 01/27/2014 - 01/27/2014
Period the Report Covers: 10/01/2010 - 09/01/2015

Participants

Last Name, First Name, E-mail, Institution;

Bain, Peggy mbain@uidaho.edu UI;

Baley, Nichole nichole.baley@oregonstate.edu OSU;

Brandt, Tina tbrandt@uidaho.edu UI;

Brown, Chuck chuck.brown@ars.usda.gov USDA-ARS;

Charlton, Brian A brian.a.charlton@oregonstate.edu OSU;

Culp, Darrin daculp@ucdavis.edu UC Davis;

Dawson, Larissa ldawson@potandon.com Sunrain;

Debons, Jeanne jeannedebons@msn.com PVMI;

Derbidge, Aron aderbidge@sunrainvarieties.com Sunrain;

Drader, Tom thomas.drader@conagrafoods.com Lamb Weston;

Essah, Samuel sessah@lamar.colostate.edu CSU;

Ewing, Lorie lewing@uidaho.edu UI;

French, Allan allan.french@simplot.com Simplot/NAFG;

Fuller, James jim.fuller@mccain.com McCain Foods USA;

Goktepe, Fahrettin fgoktepe@sunrainvarieties.com Sunrain Varieties;

Gould, Smokey smogould@msn.com TIS Seed Farms;

Gutbrod, Oscar gutbrodo@ucs.orst.edu OSU;

Hane, Dan dhane@msn.com Retired;

Higgins, Charlie higginsfarms@comcast.net Norika & USPB;

Hoggan, John joolhgna@msn.com Parkinson Seed Farm;

Hoggan Jr, John johnhoggan@rouletmobile.com;

Holden, Zach zholden@wsu.edu WSU;

Holm, David spudmkr@lamar.colostate.edu CSU;

Jones, Rebecca rebecca.jones@simplot.com Simplot;

Karow, Russ russell.s.karow@oregonstate.edu OSU;

Knowles, Rick rknowles@wsu.edu WSU;

Koym, Jeff j-koym@tamu.edu TAMU;

Lewis, Michael D mlewis@fmtc.com AWC;

Long, Katharine katharine.long@simplot.com Simplot;

Martin, Mel melvin@melsconsulting.com Retired;

Miller, Creighton jcmillerjr@tamu.edu TAMU;

Navarre, Roy roy.navarre@ars.usda.gov USDA-ARS;

Novy, Rich rich.novy@ars.usda.gov USDA-ARS;

Paget, Stephen stephen.paget@simplot.com Simplot;

Pavek, Mark mjpavek@wsu.edu WSU;

Salaiz, Tom thomas.salaiz@mccain.com McCain Foods USA;

Sathuvalli, Vidyasagar vidyasagar@oregonstate.edu OSU;

Scheuring, Douglas d-scheuring@tamu.edu TAMU;

Schneider, Brian brian.schneider@ars.usda.gov USDA-ARS;

Shock, Clint clinton.shock@oregonstate.edu OSU/MES;

Spear, Rhett rhett.spear@wsu.edu WSU;

Stark, Jeff jstark@uidaho.edu UI;

Thill, Donn dthill@uidaho.edu UI;

Thompson, Sean sean.thompson@tamu.edu TAMU;

Brief Summary of Minutes

Chair: Lorie Ewing

Secretary: Tom Drader

Call to Order: Lorie Ewing called the meeting to order at 11:00 am on January 27, 2014.

Introductions: Attendees introduced themselves.

Approval of Agenda and Minutes: A motion to accept the 2013 minutes and the current agenda was made by Pavek and seconded by Miller. The motion passed unanimously.

NIMSS Update: Donn Thill updated on NIMSS funding and discussed funding over the past 3 years.

Oregon, Washington, and Idaho: Reports were presented in the Tri-State Meeting. These states did not present reports during WERA-027.

California: Darin Culp presented the California Report. Variety reports will continue in current form. Trials will continue to focus on bruise management. Full report is available online (http://ucanr.edu/sites/Intermountain_REC/files/185341.pdf).

Texas: Creighton Miller presented this report. 65,412 first year seedlings (down from previous years), resulting from 463 different parental combination or families (crosses), were grown for selection on the Barrett Farm (18,048) near Springlake and on the CSS Farm (47,364) near Dalhart. 440 original selections were made. 42 clones were intercrossed at Lubbock to produce 88 families. We received seedlings tubers from the Idaho (7,003), Oregon (20,240), Colorado (20,380), and North Dakota (6,300) breeding programs. We grew 11,489 tuberlings in the greenhouse at College Station from true seed and sent tuberlings to Colorado (4,756), Idaho (5,180), North Dakota (4,239) and Wisconsin (2,551). Trials were conducted at Weslaco (winter – January 17 planting, May 6 harvest), Springlake (spring – March 29-April 1planting, August 5, 12, and 19 harvests), and Dalhart (fall – May 14-16 planting, September 2, 3, 8, 9, 29, and 30 harvests). 954 advanced selections/new cultivars were tested in 35 separate trials. This involves planting/harvesting over a nine month period. Western Regional Trials were conducted at both Springlake (Chip, Russet and Red/Specialty) and Dalhart (Chip, Russet and Red/Specialty). The Texas Program had one entry in the Western Regional Russet Trial (AOTX98152-3Ru) one in the Western Regional Red/ Specialty Trial (NDTX5438-11R) and one (ATTX01180-1R/Y) in the Southwestern Regional Trials. The Texas Program had twelve entries (NDTX091908AB-2W, NDTX081648CB-4W, ATTX07042-3W, NDTX071109C-1W, NDTX081648CB-1W, NDTX081648CB-2W, NDTX081644CAB-2W, TX09396-1W, NDTX081648CB-13W, COTX09089-1Ru, NDTX071217CB-1W/Y, and NDTX060700C-1W) in the USPB Fast-Track National Chip Processing Trial. The Texas field day was held on July 24 at Springlake, which included attendees from Canada to Mexico and included David Holm and Caroline Grey from the Colorado Program. A major effort of our program continues to center on our involvement in the SCRI Zebra Chip Project. Emphasis on virus testing and clean-up continued. Virtually all of the russet potatoes grown in Texas in 2013 were the improved Texas Russet Norkotah strains. Over the past several years, Texas recorded the highest summer crop yields in the nation (ranging from 440-465 Cwt/A) among the 11 states producing a summer crop. In 2012, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked in the fifth position among the top 50 US varieties in acres accepted for seed certification, behind Russet Burbank, Frito-Lay varieties, Norland and Ranger Russet. PVP for ATTX961014-1R/Y (Sierra Rose) has been approved.

Colorado Report: Dave Holm presented this report. The Colorado Potato Breeding and Selection Program intercrossed 98 parental clones in 2013 in two separate crossing blocks. The emphasis of the first crossing block was russet and yellow flesh cultivar development and PVY resistance. The second crossing block emphasized russet and specialty cultivar development and disease resistance, mostly PVY resistance. Seed from 431 combinations was obtained. Approximately 33,903 first-size seedling tubers representing 154 families were produced from 2012 greenhouse crosses for initial field selection in 2014, there are still 52 families yet to be harvested. These seedlings represent crosses segregating primarily for russet, reds, specialty types, and resistance to late blight, PVY, corky ringspot, and nematodes. Second through fourth size seedling tubers will be distributed to Idaho (USDA-ARS), Maine, North Dakota, Oregon, Texas, Wisconsin, and Alberta, Canada (Agriculture Canada). Colorado grew 88,037 first-year seedlings representing 362 families in 2013, with 536 selected for subsequent planting, evaluation, and increase in future years. A portion of these seedlings were obtained from the USDA-ARS (Aberdeen, Idaho), Agriculture Canada, Texas A&M University, and University of Maine. Another 973 clones were in 12-hill, preliminary, and intermediate stages of selection. At harvest, 196 were saved for further increase and evaluation. Eighty-seven advanced selections were saved and will be increased in 2014 pending further evaluation. Another 290 selections and cultivars were maintained for germplasm development, breeding, and other experimental purposes including seed increase/maintenance. Field trials conducted in 2013 included: Preliminary Trial, Intermediate Yield Trial, Intermediate Specialty Yield Trial, Advanced Yield Trial, Southwestern Regional Russet Trial, Southwestern Regional Red Trial, Southwestern Regional Chip Trial, Southwestern Specialty Trial, Western Regional Russet/Processing Trial, Western Regional Red Trial, Western Regional Specialty Trial, San Luis Valley Chipping Trial, and Western Regional Chipping Trial. All trials are grown under low input conditions, primarily for reduced nitrogen and fungicide. A total of 159 samples are in the process of being evaluated for two or more of the following postharvest characteristics: blackspot susceptibility, storage weight loss, dormancy, enzymatic browning, specific gravity, french fry color, french fry texture, and chip color. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by potato growers in 2013, included 13 russets (AC99375-1RU, AC00395-2RU, CO03276-5RU, CO05024-11RU, CO05040-1RU, CO05068-1RU, CO05110-6RU, CO05132-2RU, CO05149-3RU, CO05152-5RU, CO05175-1RU, CO05189-2RU, CO05189-3RU), 3 reds (CO04159-1R, CO05211-4R, CO05228-4R), 10 chippers (AC01151-5W, AC00206-2W, AC03433-1W, AC03452-2W, AC05153-1W, CO02024-9W, CO02033-1W, CO02321-4W, CO03243-3W, and CO05061-6W) and 13 specialties (AC99330-1P/Y, AC05175-3P/Y, ATTX01180-1R/Y, CO97222-1R/R, CO97226-2R/R, CO97232-2R/Y, CO97233-3R/Y,CO04067-8R/Y, CO04056-3P/PW, CO04063-4R/R, CO04099-3W/Y, CO05037-2R/Y, and CO05037-3W/Y). PVP applications were submitted for Masquerade (AC99329-7PW/Y), Crestone Russet (CO99053-3RU), and Mercury Russet (CO99100-1RU). Plant Variety Protection was granted for Mesa Russet in 2013. AC99330-1P/Y and CO97233-3R/Y will be named Midnight Moon and Red Luna.
PVMI Report: Fiscal year ended September 30th, 2012. The royalty income collected resulting from the seasons prior to 2011 amounted to $146,866.50 or approximately 28% of the total collected royalty income in 2011/12. The royalty income resulting from seed sold in the spring of 2012 (2011 crop year) was $380,879.86. Since the end of the fiscal year (Sept 30, 2012) an additional $414, 503.12 has been collected with further royalties expected from previous years. Invoices have gone out to Canadian and US seed growers as a result of recently received information from CFIA, provincial and state certifying agencies. The total US PVMI certified seed acreage for the 2012 seed crop year is 6,535.32 which compares with 6,426 in 2011. A summary of work completed and work in progress with respect to introduction, production, and sublicensing of Licensed Products in each country was presented. A new International Agreement has recently been approved by the PVMI Board. Since the last meeting Meijer International who had an agreement for worldwide rights to many Tri-State varieties has asked to no longer be part of the agreement. The PVMI website has been improved to show individual variety seed growers at the click of a link. We are currently working on the ability to pay for annual licenses on line.

Results for the 2012 Western Regional Trials.

Early and Late Trials: Rich Novy

Post Harvest Results: Rick Knowles

Regional Chipping: Dave Holm.

Red/Specialty Trial: Jeff Koym.

Disposition of Entries: Russet Trials: No entries graduated from the Western Regional Russet trial: The following entries were advanced into the Western Regional Russet Trial from the Tri-State Trial: AO3921-2, AO6021-1T, A06084-1TE. The following entry was advanced into the Early Russet Trial from the Tri-State Trial: A06029.4T and A05084-11. The returning and new entries include: Ranger Russet, Russet Burbank, Russet Norkotah, Shepody,A0073-2, A03141-6, AO3121-2, AOR06070-1KF, A06014-14TE, A06020-8, A06096-2, A06408-99LB, A06862-18VR,A06914-3CR, A07008-4T, A07103-1T, A08014-11TE, A08014-9TE, COA05149-2, OR08014-4, AO06191-1. Returning entries into the Western Regional Russet trial include: Ranger Russet, Russet Burbank, Russet Norkotah, Shepody, A02062-1TE, A02424-83LB, A02507-2LB, A03158-2TE, AO01114-4, AO02060-3, CO03276-5RU, OR05039-4, POR06V12-3. New entries seed will be supplied by the state. Returning entries seed will be supplied by OR.

Red/Specialty Trials: No entries graduated from the Western Regional trial: Returning and new entries include: Dark Red Norland, Red LaSoda, Yukon Gold, Chieftan, NDTX5438-11R, CO04067-8R/Y, A02267-1Y, CO04099-3W/Y, ATTX98444-16R/Y, ATX05202-3W/Y, NDA05237B-1R, A05180-3PY, A05182-7RY, NDA081451CB-1CY, AC05175-3P/Y, CO05037-3W/Y, CO05228-4R, CO04067-8R/Y.

Chip Trials: The following entry graduated from the Western Regional trial: A00188-3C, AC01151-5W, CO02024-9W, CO02033-1W, CO02321-4W. The returning and new entries include: Atlantic, Chipeta, AC00206-2W, AC03433-1W, AC03452-2W, CO03243-3W, AC05153-1W, A02138-2.

Seed Supply and Shipping List: Seed supplies and shipping lists were discussed. Brian Charlton will send out a list of available seed.

Discussion of Standardized Data Reporting Format: There was some discussion via emails and at Tri-State meetings. Should everyone use the greater than 6 oz measurement?

Additional Business: Discussion regarding varieties that are dropped or discontinued from the programs. Interest lies within individual groups to continue with research and possibly commercializing those entries.

The 2015 meeting site will be in Caldwell, ID on February 9.

Tom Saliaz was elected Secretary.

Meeting adjourned

Accomplishments

California: In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. Three potato variety trials were conducted at the Intermountain Research and Extension Center (IREC) in Tulelake, CA. Trials were categorized by market type and included a Russet trial with 24 entries, a Specialty trial with 16 entries, and a Chipping trial with 15 entries. Entries included selections from the Western Regional (WR) variety development program, Southwest Regional (SWR) variety development program, and varieties of local interest. Colorado: The major objectives of the Colorado Potato Breeding and Selection Program are: (1) to develop new potato cultivars (russets, reds, chippers, and specialties) with increased yield, improved quality, improved nutritional characteristics, resistance to diseases and pests, and tolerance to environmental stresses; (2) to collaborate with growers, shippers, processors, and research personnel to assess the production, adaptability, marketability, and other characteristics of advanced selections from the Colorado program; (3) to provide a basic seed source of selections to growers for seed increase and commercial testing; and (4) to evaluate promising selections for potential seed export (interstate and international). The primary emphasis is placed on the development of russet cultivars. The balance of the breeding effort is devoted to developing red, specialty, and chipping cultivars. This broad approach is important because it recognizes the diverse markets accessed by potato growers throughout Colorado and many other states in the region. Seventy-five advanced selections were saved and will be increased in 2013 pending results of ongoing evaluations. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by Colorado producers in 2012, included 12 russets Idaho: Variety Development. In 2012, we completed the release of three new potato varieties including Teton Russet (A0008-1TE), Huckleberry Gold (A99326-1PY) and Palisade Russet (A97066-42LB). Corresponding PVP and PBR applications were also prepared and submitted. Arrangements were made with industry to conduct commercial trials of each of these varieties. We had four russet varieties in the Western Regional Trials in 2012 including A01010-1, A02138-2, A02507-2LB and A03158-2TE. A01010-1 is a high yielding selection with high percent U.S. No. 1’s and good blackspot bruise resistance. A02138-2 and A02507-2LB are low acrylamide selections with good processing quality, but A02507-2LB also has resistance to a wide range of diseases including late blight, PVY, black dot and pink rot. A03158-2TE was a top yielding selection in both the early and late regional trials with excellent culinary quality and shows excellent promise for both fresh pack and processing. We also had 16 russet varieties in the early and late season Tri-State Variety Trials and 7 in the Tri-State Specialty trial. Studies designed to evaluate the responses of 5 of the Tri-State releases to reduced amounts of irrigation were conducted at Aberdeen in 2012. Alpine Russet, Alturas, Clearwater Russet, Premier Russet Umatilla Russet and Russet Burbank were irrigated during the growing season at; 100% ET, 75% ET, or 50% ET. Studies were conducted in 2012 as part of an ISDA-SCBG research project at Parma and Aberdeen to evaluate the potential for reducing pesticide rates on new varieties from the Tri-State. Varieties included in this study were Alpine Russet, Alturas, Clearwater Russet, Premier Russet and Umatilla Russet, and Russet Burbank. Results have continued to show that pesticide rates for most of these varieties can be reduced substantially in comparison to Russet Burbank. Cultural and storage management guidelines were developed for Teton Russet and Palisade Russet and were posted on the PVMI website. Cultural management guidelines were also developed for Huckleberry Gold. In addition, an extension bulletin addressing storage management for Blazer Russet was published in 2012. Oregon: The OR variety development program (OVDP) plays key role in the Tri-State potato variety development program. The OVDP consists of four cooperating research sites: Department of Crop and Soil Science (CSS), Corvallis; Hermiston Agricultural Research and Extension Center (HAREC), Hermiston; Klamath Basin Research and Extension Center (KBREC), Klamath Falls; and Malheur Experiment Station (MES), Ontario. All sites participate in early-generation selection and conduct preliminary and advanced testing of clones. In addition, each OR site provides unique services to the program including screening for disease, and other resistances, productivity, seed increases and quality evaluations that are unique to each production area. Texas: The Texas Potato Breeding and Variety Development Program used two locations in the 2013 growing season (Table 1). The first planting was near Springlake on 29 March to 1 April and harvested on 5, 12, and 19 August. This location included sixteen replicated trials, first generation seedlings for selection, and a spacing/fertility trial with two advanced Texas selections and check varieties. The second planting was near Dalhart on 14 to 16 May and harvested on 2, 3, 8, 9, 29, and 30 September. Seventeen replicated trials, a seed increase nursery, and first year seedlings for selection were planted at this site. The Texas program entered one selection (ATTX01180-1R/Y ) in the Southwestern Regional Trials conducted in Texas, Colorado, and two sites in California. The Texas Program also had one selection (AOTX98152-3Ru) in the Western Regional Russet trial and one selection (NDTX5438-11R) in the Western Regional Red/ Specialty Trial. These trials were conducted at multiple locations in six western states. A major focus of the program in 2013 continued on Zebra Chip Research, with emphasis on varietal tolerance/resistance. The program also continued to stress virus testing, clean-up, and minituber multiplication of a number of selected clones. A successful field day was held on 24 July at Springlake, and was well attended by over 50 growers and Zebra Chip collaborators from Mexico to Canada. In 2013, 65, 412 first year seedling tubers, resulting from 463 different parental combination or families (crosses), were grown for selection. Some 18,048 seedling tubers were planted on the Barrett Farm near Springlake while 47,364 were planted at CSS Farm near Dalhart. Four hundred and forty original selections were made from this material (Figure 1). In 2012, 42 clones were intercrossed at Lubbock to produce 88 families. The 2013 first year seedling tubers from Texas (11,489) were grown from true seed during the fall of 2011 at College Station. These seed were from crosses made in Lubbock, Madison, WI and Aberdeen, ID. The remaining seedling tubers were provided by Rich Novy, Idaho (7,003), Solomon Yilma, Oregon (20,240), David Holm, Colorado (20,380), and Susie Thompson, North Dakota (6,300). Texas also sent second and third-size seedling tubers to Idaho (5180), Colorado (4,756), North Dakota (4,239), and Wisconsin (2,551) for first year selections. Washington: The effect of the Tri-State Potato Variety Development Program on the Northwest potato industry has been substantial. Ranger Russet, Umatilla Russet, Alturas, Alpine Russet, Bannock Russet, Clearwater Russet, Blazer Russet are examples of russet cultivars released from the Tri-State program that have greatly benefited the United States and Northwest potato industry, being the 3rd, 4th, 7th, 17th, 19th, 20th, and 25th most widely grown cultivars in the United States in 2013, respectively, with Tri-State varieties representing over 22%, or 233,000 acres, of the fall crop nationally. (NASS, Crop Production, November, 2013). Ranger Russet, Umatilla Russet, and Alturas were the 3rd, 4th, and 5th most widely grown cultivars in the PNW (ID, OR, WA) in 2013, respectively, and accounted for 24% of the PNW planted acreage. Varieties recently released by the Tri-State program are now produced on 154,400 acres in the Pacific Northwest with value to growers estimated at approximately $558 million. Compared with 2012, the 2013 US farm-gate value of Tri-State varieties increased by approximately $63 million.

Publications

Bamberg, J. and J.C. Miller, Jr. 2012. Comparisons of ga1 with other reputed gibberellin mutants in potato. Amer. J. Potato Res. 89:142-149. Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Manipulating stem number, tuber set and size distribution in specialty potato cultivars. Am J Pot Res (online first, DOI 10.1007/s12230-013-9317-0). Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Evidence that tuber respiration is the pacemaker of physiological aging in seed potatoes (Solanum tuberosum L.). J Plant Growth Regul (online first, DOI 10.1007/s00344-013-9338-4). Blauer, J.M., Kumar, G.N.M., Knowles, L.O., Dhingra, A. and N.R. Knowles. 2013. Changes in ascorbate and associated gene expression during development and storage of potato tubers (Solanum tuberosum L.). Postharvest Biol Tech 78:76-91. Blauer, J.M., L.O. Knowles, and N.R. Knowles. 2012. Evidence that tuber respiration is the pacemaker of aging in seed potatoes. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:126. Brown, C.R. I. Vales, S. Yilma, S. James, B. Charlton, D. Culp, D. Hane, C. Shock, E. Feibert, M. Pavek, R. Knowles, R. Novy, J. Whitworth, J. Stark, J. C. Miller, Jr., D. Holm, R. Quick and R. Navarre. 2012. AmaRosa, a red-skinned, red-fleshed fingerling with high phytonutrient value. American Journal of Potato Research 89:249-254. Brown, C.R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller, Jr. 2012. Stability and broad-sense heritability of mineral content in potato: Calcium and Magnesium. American Journal of Potato Research 89:255-261. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Maximizing nitrogen use efficiency for optimum tuber yield and quality of a new Colorado potato cultivar. Am. J. Potato Res. 89:34. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Seed size and seed reconditioning influences field emergence, tuber yield, and quality of potato. Electronic Conference Proceedings (Abstracts), World Potato Congress, Edinburgh, Scotland, United Kingdom. May 2012. Holm, D.G. and Gray, C. 2012. 2011 Potato Breeding and Selection Research Report to the San Luis Valley Research Center Committee and the Colorado Potato Administrative Committees (Area II and III). 134pp. (unpub). Jayanty, S. S. and Holm, D. G. 2012. Volatile compounds analysis in Colorado potato cultivars and advanced selections using solid phase micro extraction technique (SPME). Am. J. Potato Res. 89:39. Knowles, N.R. and M.J. Pavek. 2013. WSU potato cultivar yield and postharvest quality evaluations for 2012. Washington State University Special Report. (in press) Knowles, N.R. Blauer, J.M. and L.O. Knowles. 2012. Aging of seed potatoes: physiological process and consequences for production. Plant Management Network (APS, ASA, CSSA) http://www.plantmanagementnetwork.org/infocenter/topic/focusonpotato/ Knowles, N.R., J.M. Blauer and L.O. Knowles. 2012. Shifting potato tuber size distribution with plant growth regulators. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 20-28. Knowles, L.O. and N.R. Knowles. 2012. Toxicity and metabolism of exogenous ?,?-unsaturated carbonyls in potato (Solanum tuberosum L.) tubers. J Ag Food Chem 60: 11173-11181. Knowles, N.R., M.J. Pavek, N. Fuller, L. Knowles. 2012. Post harvest quality of clones in the Western Regional Variety Development Program. Washington State Potato Commission Progress Reports for the year 2011. pp 165-189. Knowles, N.R., L. Knowles, G.N.M. Kumar, M.J. Pavek. 2012. Developmental profiles & physiological processes affecting quality of seed & processing potatoes. Washington State Potato Commission Progress Reports for the year 2011. pp 138-164. Kumar, G.N.M. and N.R. Knowles. 2012. Zebra chip (ZC) infection affects tuber protease inhibitor levels and protein content. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res90:137-138. Madiwale, G.P., Reddivari, L., Holm, D.G., Stone, M., and Vanamala, J. 2012. Combined effects of storage and processing on the bioactive compounds and pro-apoptotic properties of color-fleshed potatoes in human colon cancer cells. J. Agric. Food Chem. 60:11088-11096. McCue,K., G.Ponciano, D.Rockhold, J.Whitworth, S.Gray, Y.Fofanov, and W.Belknap. 2012. Generation of PVY Coat Protein siRNAs in Transgenic Potatoes Resistant to PVY. American Journal of Potato Research. 89:374-383. Miller, C., D. Scheuring, and J. Koym. 2012. Texas Potato Breeding Report, 2011. Texas AgriLIFE Research, College Station and Lubbock. 384p. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, and J.P. Miller. 2012. Southwest Regional Potato Variety Trial Report 2011. Texas AgriLIFE Research, College Station and Lubbock. 27p. Miller, C., J. Koym, and D. Scheuring. 2012. 2012 Field Day Handbook. July 19, 2012. Texas Potato Variety Development Program. Texas AgriLIFE Research, College Station and Lubbock. 34p. Navarre, D.A,, Payyavula, R.S., Shakya, R., Knowles, N.R., and S.S. Pillai. 2013. Changes in potato phenylpropanoid metabolism during tuber development. Plant Physiol Biochem 65:89-101. Navarre, R., R. Payyavula, S. Kumar, J. Vinson, N.R. Knowles, J. Kuhl, and A. Pantoja. 2012. Secondary metabolism and nutritionally important compounds in potato. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:141. Novy, R.G. J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A Late Blight Resistant Potato Cultivar Having a Low Incidence of Sugar Ends and High Specific Gravity. American Journal of Potato Research 89:89–101. Novy, R., J. Whitworth, J. Stark, B. Charlton, S. Yilma, N.R. Knowles, M. Pavek, T. Brandt, N. Olsen, M. Thornton, C. Brown, H. Losoya-Saldana, J. Debons, and M. Vales. 2012. Palisade Russet and Teton Russet: two new potato cultivars from the northwest (Tri-State) potato cariety development program. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:143. Novy, R.G., J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A late blight resistant potato cultivar having a low incidence of sugar ends and high specific gravity. Am J Potato Res 89:89-101, DOI 10.1007/s12230-011-9224-1. Pavek, M.J. and N.R. Knowles. 2012. WSU potato cultivar yield and postharvest quality evaluations for 2011. Washington State University Special Report. 122 pages. Pavek, M.J., Knowles, N.R., Holden, Z.J., and C.D. Hiles. 2012. Nitrogen fertigation in potatoes: application timing, rate, and varietal response. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 29-36. Pavek, M.J., C.H. Pearson-Mims, Z.J. Holden. 2012. Washington commercial seed lot trials. A summary of the 2012 Washington state commercial seed lot trial. Washington State University Special Report. 10 pages. Pavek, M.J., Z.J. Holden, C.D. Hiles. 2012. Washington commercial potato seed lot and demonstration trials. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 247-257. Pavek, M.J., N.R. Knowles, Z.J. Holden, and C.D. Hiles. 2012. In-field testing to identify new potato varieties and best management practices for Washington growers. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 225-246. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Selenium and sulfur content and activity of associated enzymes in selected potato germplasm. Am. J. Potato Res. 89:111-120. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Effects of cooking methods on polyphenols, pigments and antioxidant activity in potato tubers. LWT - Food Science and Technology 45:61-171. Srinivasan,R., D.G.Hall, F.A.Cervantes, J.M.Alvarez, and J.L.Whitworth. 2012. Strain specificity and simultaneous transmission of closely related strains of a potyvirus by Myzus persicae. Journal of Economic Entomology. 105:783-791. Vales, M.I., C.R. Brown, S. Yilma, D.C. Hane, S.R. James, C.C. Shock, B.A. Charlton, E. Karaagac A.R. Mosley, D. Culp, E. Feibert, J.C. Stark, M.J. Pavek, N.R. Knowles, R.G. Novy, and J.L. Whitworth, 2012. Purple Pelisse: A specialty ‘fingerling’ potato with purple skin and flesh and medium specific gravity. American Journal of Potato Research 89:306–314. Whitworth,J., P.Hamm, and P.Nolte. 2012. Distribution of Potato virus Y strains in tubers during the post-harvest period. American Journal of Potato Research. 89:136-141. Whitworth, J.L., Novy, R.G., Stark, J.C., Thornton, M., Yilma, S., Charlton, B.A., Pavek, M.J., Knowles, N.R., and C.R. Brown. 2012. Huckleberry Gold: development of a specialty cultivar within the tri-state variety development program with unique disease resistances. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:155. Yilma, S., M.I. Vales, B.A. Charlton, D.C. Hane, S.R. James, C.C. Shock, A.R. Mosley, D. Culp, E. Feibert, L. Leroux, E. Karaagac, N.R. Knowles, M.J. Pavek, J.C. Stark, R.G. Novy, J.L. Whitworth, J.J. Pavek, D.L. Corsini, T.L. Brandt, N. Olsen, and C.R. Brown. 2012. Owyhee Russet: A variety with high yields of U.S. No. 1 tubers, excellent processing quality, and moderate resistance to Fusarium dry rot (Fusarium solani var. coeruleum). American Journal of Potato Research.89:175-183. Zommick, D.H., L.O. Knowles, G.N.M. Kumar and N.R. Knowles. 2012. Assessing the impact of heat stress on tuber quality. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 51-57. Zommick, D.H., L.O. Knowles, G.N.M. Kumar, and N.R. Knowles. 2012. In-season heat stress compromises postharvest quality and low temperature sweetening resistance in potato (Solanum tuberosum L.). Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90: 156.

Impact Statements

Trials help breeders choose varieties suited to CA growing conditions. Trials allow producers access to CA specific data on variety performance, pest resistance, and cultural management, and they help increase adoption and proper management of new varieties. Many of the varieties with significant acreage in CA were evaluated in the Western Regional program such as Rio Grande Russet, Colorado Rose, Russet Norkotah strains TX112, TX223, TX278, 296, CO3, CO8, and Classic Russet. (CA)
Since 1975, there have been 27 potato cultivars/clonal selections released by Colorado State University or in cooperation with other agencies. Three additional selections are currently being released including AC99329-7PW/Y (Masquerade), CO99053-3RU (Crestone Russet), and CO99100-1RU (named to be determined). (CO)
Colorado State University releases accounted for 58% of the 55,100 acres planted to fall potatoes in Colorado in 2012. Colorado cultivars and clonal selections accounted for 46% of the 13,286 acres of Colorado certified seed accepted for certification in 2012. Advanced Colorado selections accounted for another 5% of the seed acreage. (CO)
Three of the top 10 russet cultivars grown for seed in the U.S. [Russet Norkotah-S3 ( number 5), Canela Russet (number 8), Rio Grande Russet (number 10), in 2012 were developed by the Colorado program. For reds, Sangre-S11 ranked #5. For colored-fleshed specialties, Mountain Rose and Purple Majesty both continue to be ranked #1 among red- and purple-fleshed cultivars. (CO)
More than 350 successful crosses were made between promising long russets for fresh market and processing, to a lesser extent chippers, reds and specialties clones. The crosses will integrate the major viruses (PVY, PVX, PLRV) resistant genes, cold sweetening resistance, low acrylamide, and known resistance to tuber worm and potato psyllid, late blight, corky ring spot, and nematodes. (OR)
A total of 60,000 seedling tubers were produced in Corvallis greenhouses. The A sized seedling tubers will be planted in Klamath Falls, Oregon in single-hill. The B size seedling tubers will be distributed for collaborative institutions. (OR)
Molecular marker evaluations were performed for PVY resistance on 147 single hills clones selected in 2011. A total of twenty five resistant clones with the PVY resistant genes were identified for further selection and testing. In collaboration with USDA/Aberdeen program we by were able to pyramid PVY, PVX and potato pale cyst nematode resistance genes in a single cross. (OR)
By using induced mutation and in vitro techniques we have generated clonal variants of Russet Burbank, Russet Norkotah, GemStar Russet and Ranger Russet for further evaluation for drought tolerant and clonal selections. (OR)
Yukon Nugget (POR02PG37-2) release was approved by PVMI and the release documents were submitted to Oregon State University variety release committee for approval. TerraRosa (POR01PG20-12) release is pending awaiting PVMI exclusive sub-licensing. (OR)
Thirteen improved varieties have been developed/co-developed and/or released from the Texas Potato Breeding and Variety Development Program. Virtually all of the russet potatoes grown in Texas in 2012 were to the improved Texas Russet Norkotah strains. (TX)
From 2008 through 2011 the average summer crop yield in Texas was reported to be the highest in the nation among the 11 summer crop producing states. In 2012, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked in the second position among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank. (TX)
The effect of the Tri-State Potato Variety Development Program on the Northwest potato industry has been substantial. The fresh market industry, french fry processors and chippers have incorporated many varieties developed through the Tri-State variety development program into their businesses. (ID, OR, WA)
Ranger Russet, Umatilla Russet, Alturas, Premier Russet, Bannock Russet, Ivory Crisp, Western Russet, and Alpine Russet are examples of russet cultivars released from the Tri-State program that have greatly benefited the USA and Northwest potato industry, being the 3rd, 4th, 7th, 13th, 14th, 16th, 21st, and 22nd most widely grown cultivars in the USA in 2012, respectively, with Tri-State varieties representing over 21%, or 200,000 acres, of the fall crop nationally. (ID, OR, WA)
Ranger Russet, Alturas, Umatilla Russet, and Western Russet were the 3rd, 4th, 5th, and 6th, most widely grown cultivars in ID in 2012, respectively, and accounted for 17% of the planted acreage. Umatilla Russet, Ranger Russet, Alturas, and Premier Russet were the 2nd, 3rd, 4th, and 8th most widely grown cultivars in WA in 2012, and accounted for 37% of the total acreage. In OR, these cultivars ranked 4th, 2nd, 6th, and 8th, and accounted for 40% of 2012 total acreage. (ID, OR, WA)
Up 22,000 acres from 2010, varieties recently released by the Tri-State program are now produced on 137,000 acres in the Pacific Northwest with value to growers estimated at approximately $495 million. Compared with 2010, the 2012 US farm-gate value of Tri-State varieties increased by approximately $80 million. (ID, OR, WA)
Varieties were evaluated for N use efficiency relative to Russet Burbank. Alturas required 40% less N than Russet Burbank, while all of the others required about 20-25% less N. Production of Umatilla Russet, Alturas and Premier Russet in ID, OR, and WA was about 60,000 A in 2012, potentially reducing the amount of N applied by 6 million pounds compared with the same acreage planted to Russet Burbank. In 2012, the potential economic savings to NW growers was over $4.3 million. (ID, OR, WA)
The reduced use of N will reduce the potential for nitrate-contaminated ground water in the region. Reducing N applications by 20-40% provides a considerable economic benefit to growers, environmental benefits and contributes significantly to the sustainability of potato production systems. As improved varieties are adopted, quality and production efficiency will continue to improve, fertilizer and pesticide inputs will decrease, and environmental impact will be lessened. (ID, OR, WA)

Date of Annual Report: 03/27/2005

Report Information

Annual Meeting Dates: 01/27/2014 - 01/27/2014
Period the Report Covers: 10/01/2012 - 09/01/2013

Participants

Last Name First Name E-mail Institution
Bain Peggy mbain@uidaho.edu UI;
Baley Nichole nichole.baley@oregonstate.edu OSU;
Brandt Tina tbrandt@uidaho.edu UI;
Brown Chuck chuck.brown@ars.usda.gov USDA-ARS;
Charlton Brian A brian.a.charlton@oregonstate.edu OSU;
Culp Darrin daculp@ucdavis.edu UC Davis;
Dawson Larissa ldawson@potandon.com Sunrain;
Debons Jeanne jeannedebons@msn.com PVMI;
Derbidge Aron aderbidge@sunrainvarieties.com Sunrain;
Drader Tom thomas.drader@conagrafoods.com Lamb Weston;
Essah Samuel sessah@lamar.colostate.edu CSU;
Ewing Lorie lewing@uidaho.edu UI;
French Allan allan.french@simplot.com Simplot/NAFG;
Fuller James jim.fuller@mccain.com McCain Foods USA;
Goktepe Fahrettin fgoktepe@sunrainvarieties.com Sunrain Varieties;
Gould Smokey smogould@msn.com TIS Seed Farms;
Gutbrod Oscar gutbrodo@ucs.orst.edu OSU;
Hane Dan d_hane@msn.com Retired;
Higgins Charlie higginsfarms@comcast.net Norika & USPB;
Hoggan John joolhgna@msn.com Parkinson Seed Farm;
Hoggan Jr John johnhoggan@rouletmobile.com;
Holden Zach zholden@wsu.edu WSU;
Holm David spudmkr@lamar.colostate.edu CSU;
Jones Rebecca rebecca.jones@simplot.com Simplot;
Karow Russ russell.s.karow@oregonstate.edu OSU;
Knowles Rick rknowles@wsu.edu WSU;
Koym Jeff j-koym@tamu.edu TAMU;
Lewis Michael D mlewis@fmtc.com AWC;
Long Katharine katharine.long@simplot.com Simplot;
Martin Mel melvin@melsconsulting.com Retired;
Miller Creighton jcmillerjr@tamu.edu TAMU;
Navarre Roy roy.navarre@ars.usda.gov USDA-ARS;
Novy Rich rich.novy@ars.usda.gov USDA-ARS;
Paget Stephen stephen.paget@simplot.com Simplot;
Pavek Mark mjpavek@wsu.edu WSU;
Salaiz Tom thomas.salaiz@mccain.com McCain Foods USA;
Sathuvalli Vidyasagar vidyasagar@oregonstate.edu OSU;
Scheuring Douglas d-scheuring@tamu.edu TAMU;
Schneider Brian brian.schneider@ars.usda.gov USDA-ARS;
Shock Clint clinton.shock@oregonstate.edu OSU/MES;
Spear Rhett rhett.spear@wsu.edu WSU;
Stark Jeff jstark@uidaho.edu UI;
Thill Donn dthill@uidaho.edu UI;
Thompson Sean sean.thompson@tamu.edu TAMU;

Brief Summary of Minutes

Accomplishments

Accomplishments: California: In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. Three potato variety trials were conducted at the Intermountain Research and Extension Center (IREC) in Tulelake, CA. Trials were categorized by market type and included a Russet trial with 24 entries, a Specialty trial with 16 entries, and a Chipping trial with 15 entries. Entries included selections from the Western Regional (WR) variety development program, Southwest Regional (SWR) variety development program, and varieties of local interest. Colorado: The major objectives of the Colorado Potato Breeding and Selection Program are: (1) to develop new potato cultivars (russets, reds, chippers, and specialties) with increased yield, improved quality, improved nutritional characteristics, resistance to diseases and pests, and tolerance to environmental stresses; (2) to collaborate with growers, shippers, processors, and research personnel to assess the production, adaptability, marketability, and other characteristics of advanced selections from the Colorado program; (3) to provide a basic seed source of selections to growers for seed increase and commercial testing; and (4) to evaluate promising selections for potential seed export (interstate and international). The primary emphasis is placed on the development of russet cultivars. The balance of the breeding effort is devoted to developing red, specialty, and chipping cultivars. This broad approach is important because it recognizes the diverse markets accessed by potato growers throughout Colorado and many other states in the region. Seventy-five advanced selections were saved and will be increased in 2013 pending results of ongoing evaluations. Advanced selections evaluated in the Southwest Regional Trials, Western Regional Trials, or by Colorado producers in 2012, included 12 russets Idaho: Variety Development. In 2012, we completed the release of three new potato varieties including Teton Russet (A0008-1TE), Huckleberry Gold (A99326-1PY) and Palisade Russet (A97066-42LB). Corresponding PVP and PBR applications were also prepared and submitted. Arrangements were made with industry to conduct commercial trials of each of these varieties. We had four russet varieties in the Western Regional Trials in 2012 including A01010-1, A02138-2, A02507-2LB and A03158-2TE. A01010-1 is a high yielding selection with high percent U.S. No. 1’s and good blackspot bruise resistance. A02138-2 and A02507-2LB are low acrylamide selections with good processing quality, but A02507-2LB also has resistance to a wide range of diseases including late blight, PVY, black dot and pink rot. A03158-2TE was a top yielding selection in both the early and late regional trials with excellent culinary quality and shows excellent promise for both fresh pack and processing. We also had 16 russet varieties in the early and late season Tri-State Variety Trials and 7 in the Tri-State Specialty trial. Studies designed to evaluate the responses of 5 of the Tri-State releases to reduced amounts of irrigation were conducted at Aberdeen in 2012. Alpine Russet, Alturas, Clearwater Russet, Premier Russet Umatilla Russet and Russet Burbank were irrigated during the growing season at; 100% ET, 75% ET, or 50% ET. Studies were conducted in 2012 as part of an ISDA-SCBG research project at Parma and Aberdeen to evaluate the potential for reducing pesticide rates on new varieties from the Tri-State. Varieties included in this study were Alpine Russet, Alturas, Clearwater Russet, Premier Russet and Umatilla Russet, and Russet Burbank. Results have continued to show that pesticide rates for most of these varieties can be reduced substantially in comparison to Russet Burbank. Cultural and storage management guidelines were developed for Teton Russet and Palisade Russet and were posted on the PVMI website. Cultural management guidelines were also developed for Huckleberry Gold. In addition, an extension bulletin addressing storage management for Blazer Russet was published in 2012. Oregon: The OR variety development program (OVDP) plays key role in the Tri-State potato variety development program. The OVDP consists of four cooperating research sites: Department of Crop and Soil Science (CSS), Corvallis; Hermiston Agricultural Research and Extension Center (HAREC), Hermiston; Klamath Basin Research and Extension Center (KBREC), Klamath Falls; and Malheur Experiment Station (MES), Ontario. All sites participate in early-generation selection and conduct preliminary and advanced testing of clones. In addition, each OR site provides unique services to the program including screening for disease, and other resistances, productivity, seed increases and quality evaluations that are unique to each production area. Texas: The Texas Potato Breeding and Variety Development Program used two locations in the 2013 growing season (Table 1). The first planting was near Springlake on 29 March to 1 April and harvested on 5, 12, and 19 August. This location included sixteen replicated trials, first generation seedlings for selection, and a spacing/fertility trial with two advanced Texas selections and check varieties. The second planting was near Dalhart on 14 to 16 May and harvested on 2, 3, 8, 9, 29, and 30 September. Seventeen replicated trials, a seed increase nursery, and first year seedlings for selection were planted at this site. The Texas program entered one selection (ATTX01180-1R/Y ) in the Southwestern Regional Trials conducted in Texas, Colorado, and two sites in California. The Texas Program also had one selection (AOTX98152-3Ru) in the Western Regional Russet trial and one selection (NDTX5438-11R) in the Western Regional Red/ Specialty Trial. These trials were conducted at multiple locations in six western states. A major focus of the program in 2013 continued on Zebra Chip Research, with emphasis on varietal tolerance/resistance. The program also continued to stress virus testing, clean-up, and minituber multiplication of a number of selected clones. A successful field day was held on 24 July at Springlake, and was well attended by over 50 growers and Zebra Chip collaborators from Mexico to Canada. In 2013, 65, 412 first year seedling tubers, resulting from 463 different parental combination or families (crosses), were grown for selection. Some 18,048 seedling tubers were planted on the Barrett Farm near Springlake while 47,364 were planted at CSS Farm near Dalhart. Four hundred and forty original selections were made from this material (Figure 1). In 2012, 42 clones were intercrossed at Lubbock to produce 88 families. The 2013 first year seedling tubers from Texas (11,489) were grown from true seed during the fall of 2011 at College Station. These seed were from crosses made in Lubbock, Madison, WI and Aberdeen, ID. The remaining seedling tubers were provided by Rich Novy, Idaho (7,003), Solomon Yilma, Oregon (20,240), David Holm, Colorado (20,380), and Susie Thompson, North Dakota (6,300). Texas also sent second and third-size seedling tubers to Idaho (5180), Colorado (4,756), North Dakota (4,239), and Wisconsin (2,551) for first year selections. Washington: The effect of the Tri-State Potato Variety Development Program on the Northwest potato industry has been substantial. Ranger Russet, Umatilla Russet, Alturas, Alpine Russet, Bannock Russet, Clearwater Russet, Blazer Russet are examples of russet cultivars released from the Tri-State program that have greatly benefited the United States and Northwest potato industry, being the 3rd, 4th, 7th, 17th, 19th, 20th, and 25th most widely grown cultivars in the United States in 2013, respectively, with Tri-State varieties representing over 22%, or 233,000 acres, of the fall crop nationally. (NASS, Crop Production, November, 2013). Ranger Russet, Umatilla Russet, and Alturas were the 3rd, 4th, and 5th most widely grown cultivars in the PNW (ID, OR, WA) in 2013, respectively, and accounted for 24% of the PNW planted acreage. Varieties recently released by the Tri-State program are now produced on 154,400 acres in the Pacific Northwest with value to growers estimated at approximately $558 million. Compared with 2012, the 2013 US farm-gate value of Tri-State varieties increased by approximately $63 million.

Publications

Publications. Bamberg, J. and J.C. Miller, Jr. 2012. Comparisons of ga1 with other reputed gibberellin mutants in potato. Amer. J. Potato Res. 89:142-149. Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Manipulating stem number, tuber set and size distribution in specialty potato cultivars. Am J Pot Res (online first, DOI 10.1007/s12230-013-9317-0). Blauer, J.M., Knowles, L.O. and N.R. Knowles. 2013. Evidence that tuber respiration is the pacemaker of physiological aging in seed potatoes (Solanum tuberosum L.). J Plant Growth Regul (online first, DOI 10.1007/s00344-013-9338-4). Blauer, J.M., Kumar, G.N.M., Knowles, L.O., Dhingra, A. and N.R. Knowles. 2013. Changes in ascorbate and associated gene expression during development and storage of potato tubers (Solanum tuberosum L.). Postharvest Biol Tech 78:76-91. Blauer, J.M., L.O. Knowles, and N.R. Knowles. 2012. Evidence that tuber respiration is the pacemaker of aging in seed potatoes. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:126. Brown, C.R. I. Vales, S. Yilma, S. James, B. Charlton, D. Culp, D. Hane, C. Shock, E. Feibert, M. Pavek, R. Knowles, R. Novy, J. Whitworth, J. Stark, J. C. Miller, Jr., D. Holm, R. Quick and R. Navarre. 2012. AmaRosa, a red-skinned, red-fleshed fingerling with high phytonutrient value. American Journal of Potato Research 89:249-254. Brown, C.R., K.G. Haynes, M. Moore, M.J. Pavek, D.C. Hane, S.L. Love, R.G. Novy, and J.C. Miller, Jr. 2012. Stability and broad-sense heritability of mineral content in potato: Calcium and Magnesium. American Journal of Potato Research 89:255-261. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Maximizing nitrogen use efficiency for optimum tuber yield and quality of a new Colorado potato cultivar. Am. J. Potato Res. 89:34. Essah, S. Y. C., Holm, D. G., and Davidson, R. D. 2012. Seed size and seed reconditioning influences field emergence, tuber yield, and quality of potato. Electronic Conference Proceedings (Abstracts), World Potato Congress, Edinburgh, Scotland, United Kingdom. May 2012. Holm, D.G. and Gray, C. 2012. 2011 Potato Breeding and Selection Research Report to the San Luis Valley Research Center Committee and the Colorado Potato Administrative Committees (Area II and III). 134pp. (unpub). Jayanty, S. S. and Holm, D. G. 2012. Volatile compounds analysis in Colorado potato cultivars and advanced selections using solid phase micro extraction technique (SPME). Am. J. Potato Res. 89:39. Knowles, N.R. and M.J. Pavek. 2013. WSU potato cultivar yield and postharvest quality evaluations for 2012. Washington State University Special Report. (in press) Knowles, N.R. Blauer, J.M. and L.O. Knowles. 2012. Aging of seed potatoes: physiological process and consequences for production. Plant Management Network (APS, ASA, CSSA) http://www.plantmanagementnetwork.org/infocenter/topic/focusonpotato/ Knowles, N.R., J.M. Blauer and L.O. Knowles. 2012. Shifting potato tuber size distribution with plant growth regulators. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 20-28. Knowles, L.O. and N.R. Knowles. 2012. Toxicity and metabolism of exogenous ?,?-unsaturated carbonyls in potato (Solanum tuberosum L.) tubers. J Ag Food Chem 60: 11173-11181. Knowles, N.R., M.J. Pavek, N. Fuller, L. Knowles. 2012. Post harvest quality of clones in the Western Regional Variety Development Program. Washington State Potato Commission Progress Reports for the year 2011. pp 165-189. Knowles, N.R., L. Knowles, G.N.M. Kumar, M.J. Pavek. 2012. Developmental profiles & physiological processes affecting quality of seed & processing potatoes. Washington State Potato Commission Progress Reports for the year 2011. pp 138-164. Kumar, G.N.M. and N.R. Knowles. 2012. Zebra chip (ZC) infection affects tuber protease inhibitor levels and protein content. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res90:137-138. Madiwale, G.P., Reddivari, L., Holm, D.G., Stone, M., and Vanamala, J. 2012. Combined effects of storage and processing on the bioactive compounds and pro-apoptotic properties of color-fleshed potatoes in human colon cancer cells. J. Agric. Food Chem. 60:11088-11096. McCue,K., G.Ponciano, D.Rockhold, J.Whitworth, S.Gray, Y.Fofanov, and W.Belknap. 2012. Generation of PVY Coat Protein siRNAs in Transgenic Potatoes Resistant to PVY. American Journal of Potato Research. 89:374-383. Miller, C., D. Scheuring, and J. Koym. 2012. Texas Potato Breeding Report, 2011. Texas AgriLIFE Research, College Station and Lubbock. 384p. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, and J.P. Miller. 2012. Southwest Regional Potato Variety Trial Report 2011. Texas AgriLIFE Research, College Station and Lubbock. 27p. Miller, C., J. Koym, and D. Scheuring. 2012. 2012 Field Day Handbook. July 19, 2012. Texas Potato Variety Development Program. Texas AgriLIFE Research, College Station and Lubbock. 34p. Navarre, D.A,, Payyavula, R.S., Shakya, R., Knowles, N.R., and S.S. Pillai. 2013. Changes in potato phenylpropanoid metabolism during tuber development. Plant Physiol Biochem 65:89-101. Navarre, R., R. Payyavula, S. Kumar, J. Vinson, N.R. Knowles, J. Kuhl, and A. Pantoja. 2012. Secondary metabolism and nutritionally important compounds in potato. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:141. Novy, R.G. J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A Late Blight Resistant Potato Cultivar Having a Low Incidence of Sugar Ends and High Specific Gravity. American Journal of Potato Research 89:89–101. Novy, R., J. Whitworth, J. Stark, B. Charlton, S. Yilma, N.R. Knowles, M. Pavek, T. Brandt, N. Olsen, M. Thornton, C. Brown, H. Losoya-Saldana, J. Debons, and M. Vales. 2012. Palisade Russet and Teton Russet: two new potato cultivars from the northwest (Tri-State) potato cariety development program. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:143. Novy, R.G., J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, T.L. Brandt, S. Gupta, N. Olsen, M. Thornton, C.R. Brown, D.L. Corsini, J.J. Pavek, S.R. James, D.C. Hane, H. Lozoya-Saldana, and M.I. Vales. 2012. Palisade Russet: A late blight resistant potato cultivar having a low incidence of sugar ends and high specific gravity. Am J Potato Res 89:89-101, DOI 10.1007/s12230-011-9224-1. Pavek, M.J. and N.R. Knowles. 2012. WSU potato cultivar yield and postharvest quality evaluations for 2011. Washington State University Special Report. 122 pages. Pavek, M.J., Knowles, N.R., Holden, Z.J., and C.D. Hiles. 2012. Nitrogen fertigation in potatoes: application timing, rate, and varietal response. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 29-36. Pavek, M.J., C.H. Pearson-Mims, Z.J. Holden. 2012. Washington commercial seed lot trials. A summary of the 2012 Washington state commercial seed lot trial. Washington State University Special Report. 10 pages. Pavek, M.J., Z.J. Holden, C.D. Hiles. 2012. Washington commercial potato seed lot and demonstration trials. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 247-257. Pavek, M.J., N.R. Knowles, Z.J. Holden, and C.D. Hiles. 2012. In-field testing to identify new potato varieties and best management practices for Washington growers. Washington State Potato Commission Progress Reports for Research Conducted in 2011. pp 225-246. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Selenium and sulfur content and activity of associated enzymes in selected potato germplasm. Am. J. Potato Res. 89:111-120. Perla, V., Holm, D. G., and Jayanty, S. S. 2012. Effects of cooking methods on polyphenols, pigments and antioxidant activity in potato tubers. LWT - Food Science and Technology 45:61-171. Srinivasan,R., D.G.Hall, F.A.Cervantes, J.M.Alvarez, and J.L.Whitworth. 2012. Strain specificity and simultaneous transmission of closely related strains of a potyvirus by Myzus persicae. Journal of Economic Entomology. 105:783-791. Vales, M.I., C.R. Brown, S. Yilma, D.C. Hane, S.R. James, C.C. Shock, B.A. Charlton, E. Karaagac A.R. Mosley, D. Culp, E. Feibert, J.C. Stark, M.J. Pavek, N.R. Knowles, R.G. Novy, and J.L. Whitworth, 2012. Purple Pelisse: A specialty ‘fingerling’ potato with purple skin and flesh and medium specific gravity. American Journal of Potato Research 89:306–314. Whitworth,J., P.Hamm, and P.Nolte. 2012. Distribution of Potato virus Y strains in tubers during the post-harvest period. American Journal of Potato Research. 89:136-141. Whitworth, J.L., Novy, R.G., Stark, J.C., Thornton, M., Yilma, S., Charlton, B.A., Pavek, M.J., Knowles, N.R., and C.R. Brown. 2012. Huckleberry Gold: development of a specialty cultivar within the tri-state variety development program with unique disease resistances. Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90:155. Yilma, S., M.I. Vales, B.A. Charlton, D.C. Hane, S.R. James, C.C. Shock, A.R. Mosley, D. Culp, E. Feibert, L. Leroux, E. Karaagac, N.R. Knowles, M.J. Pavek, J.C. Stark, R.G. Novy, J.L. Whitworth, J.J. Pavek, D.L. Corsini, T.L. Brandt, N. Olsen, and C.R. Brown. 2012. Owyhee Russet: A variety with high yields of U.S. No. 1 tubers, excellent processing quality, and moderate resistance to Fusarium dry rot (Fusarium solani var. coeruleum). American Journal of Potato Research.89:175-183. Zommick, D.H., L.O. Knowles, G.N.M. Kumar and N.R. Knowles. 2012. Assessing the impact of heat stress on tuber quality. Proceedings of the 2012 Washington - Oregon Potato Conference. pp. 51-57. Zommick, D.H., L.O. Knowles, G.N.M. Kumar, and N.R. Knowles. 2012. In-season heat stress compromises postharvest quality and low temperature sweetening resistance in potato (Solanum tuberosum L.). Proceedings of the 96th Annual Meeting of the Potato Association of America. Am. J. Pot. Res. 90: 156.

Impact Statements

Trials help breeders choose varieties suited to CA growing conditions. Trials allow producers access to CA specific data on variety performance, pest resistance, and cultural management, and they help increase adoption and proper management of new varieties. Many of the varieties with significant acreage in CA were evaluated in the Western Regional program such as Rio Grande Russet, Colorado Rose, Russet Norkotah strains TX112, TX223, TX278, 296, CO3, CO8, and Classic Russet. (CA)
Since 1975, there have been 27 potato cultivars/clonal selections released by Colorado State University or in cooperation with other agencies. Three additional selections are currently being released including AC99329-7PW/Y (Masquerade), CO99053-3RU (Crestone Russet), and CO99100-1RU (named to be determined). (CO)
Colorado State University releases accounted for 58% of the 55,100 acres planted to fall potatoes in Colorado in 2012. Colorado cultivars and clonal selections accounted for 46% of the 13,286 acres of Colorado certified seed accepted for certification in 2012. Advanced Colorado selections accounted for another 5% of the seed acreage. (CO)
Three of the top 10 russet cultivars grown for seed in the U.S. [Russet Norkotah-S3 ( number 5), Canela Russet (number 8), Rio Grande Russet (number 10), in 2012 were developed by the Colorado program. For reds, Sangre-S11 ranked #5. For colored-fleshed specialties, Mountain Rose and Purple Majesty both continue to be ranked #1 among red- and purple-fleshed cultivars. (CO)
More than 350 successful crosses were made between promising long russets for fresh market and processing, to a lesser extent chippers, reds and specialties clones. The crosses will integrate the major viruses (PVY, PVX, PLRV) resistant genes, cold sweetening resistance, low acrylamide, and known resistance to tuber worm and potato psyllid, late blight, corky ring spot, and nematodes. (OR)
A total of 60,000 seedling tubers were produced in Corvallis greenhouses. The A sized seedling tubers will be planted in Klamath Falls, Oregon in single-hill. The B size seedling tubers will be distributed for collaborative institutions. (OR)
Molecular marker evaluations were performed for PVY resistance on 147 single hills clones selected in 2011. A total of twenty five resistant clones with the PVY resistant genes were identified for further selection and testing. In collaboration with USDA/Aberdeen program we by were able to pyramid PVY, PVX and potato pale cyst nematode resistance genes in a single cross. (OR)
By using induced mutation and in vitro techniques we have generated clonal variants of Russet Burbank, Russet Norkotah, GemStar Russet and Ranger Russet for further evaluation for drought tolerant and clonal selections. (OR)
Yukon Nugget (POR02PG37-2) release was approved by PVMI and the release documents were submitted to Oregon State University variety release committee for approval. TerraRosa (POR01PG20-12) release is pending awaiting PVMI exclusive sub-licensing. (OR)
Thirteen improved varieties have been developed/co-developed and/or released from the Texas Potato Breeding and Variety Development Program. Virtually all of the russet potatoes grown in Texas in 2012 were to the improved Texas Russet Norkotah strains. (TX)
From 2008 through 2011 the average summer crop yield in Texas was reported to be the highest in the nation among the 11 summer crop producing states. In 2012, the three Texas Russet Norkotah selections (TXNS112, TXNS278, and TXNS296) collectively ranked in the second position among the top 50 US varieties in acres accepted for seed certification, behind only Russet Burbank. (TX)
The effect of the Tri-State Potato Variety Development Program on the Northwest potato industry has been substantial. The fresh market industry, french fry processors and chippers have incorporated many varieties developed through the Tri-State variety development program into their businesses. (ID, OR, WA)
Ranger Russet, Umatilla Russet, Alturas, Premier Russet, Bannock Russet, Ivory Crisp, Western Russet, and Alpine Russet are examples of russet cultivars released from the Tri-State program that have greatly benefited the USA and Northwest potato industry, being the 3rd, 4th, 7th, 13th, 14th, 16th, 21st, and 22nd most widely grown cultivars in the USA in 2012, respectively, with Tri-State varieties representing over 21%, or 200,000 acres, of the fall crop nationally. (ID, OR, WA)
Ranger Russet, Alturas, Umatilla Russet, and Western Russet were the 3rd, 4th, 5th, and 6th, most widely grown cultivars in ID in 2012, respectively, and accounted for 17% of the planted acreage. Umatilla Russet, Ranger Russet, Alturas, and Premier Russet were the 2nd, 3rd, 4th, and 8th most widely grown cultivars in WA in 2012, and accounted for 37% of the total acreage. In OR, these cultivars ranked 4th, 2nd, 6th, and 8th, and accounted for 40% of 2012 total acreage. (ID, OR, WA)
Up 22,000 acres from 2010, varieties recently released by the Tri-State program are now produced on 137,000 acres in the Pacific Northwest with value to growers estimated at approximately $495 million. Compared with 2010, the 2012 US farm-gate value of Tri-State varieties increased by approximately $80 million. (ID, OR, WA)
Varieties were evaluated for N use efficiency relative to Russet Burbank. Alturas required 40% less N than Russet Burbank, while all of the others required about 20-25% less N. Production of Umatilla Russet, Alturas and Premier Russet in ID, OR, and WA was about 60,000 A in 2012, potentially reducing the amount of N applied by 6 million pounds compared with the same acreage planted to Russet Burbank. In 2012, the potential economic savings to NW growers was over $4.3 million. (ID, OR, WA)
Varieties were evaluated for N use efficiency relative to Russet Burbank. Alturas required 40% less N than Russet Burbank, while all of the others required about 20-25% less N. Production of Umatilla Russet, Alturas and Premier Russet in ID, OR, and WA was about 60,000 A in 2012, potentially reducing the amount of N applied by 6 million pounds compared with the same acreage planted to Russet Burbank. In 2012, the potential economic savings to NW growers was over $4.3 million. (ID, OR, WA)
The reduced use of N will reduce the potential for nitrate-contaminated ground water in the region. Reducing N applications by 20-40% provides a considerable economic benefit to growers, environmental benefits and contributes significantly to the sustainability of potato production systems. As improved varieties are adopted, quality and production efficiency will continue to improve, fertilizer and pesticide inputs will decrease, and environmental impact will be lessened. (ID, OR, WA)

Date of Annual Report: 04/01/2015

Report Information

Annual Meeting Dates: 02/03/2015 - 02/03/2015
Period the Report Covers: 10/01/2013 - 09/01/2014

Participants

Adams Oksana oadams@uicaho.edu UI;
Bain Peggy mbain@uidaho.edu UI;
Bohlscheid Jeff Jeff.bohlscheid@simplot.com Simplot;
Brandt Tina tbrandt@uidaho.edu UI;
Brown Chuck chuck.brown@ars.usda.gov USDA-ARS;
Champouret Nicolas nicolas.champouret@simplot.com Simplot;
Charlton Brian A brian.a.charlton@oregonstate.edu OSU-KFREC;
Culp Darrin daculp@ucanr.edu UC Davis;
Dawson Larissa ldawson@sunrainvarieties.com Sunrain;
Debons Jeanne jeannedebons@msn.com PVMI;
Dolezal Chandler cdolezal@wsu.edu WSU;
Drader Tom thomas.drader@conagrafoods.com Lamb Weston;
Ewing Lorie lewing@uidaho.edu UI;
Goktepe Fahrettin fgoktepe@sunrainvarieties.com Sunrain Varieties;
Hoggan John joolhgna@msn.com Consultant;
Hoggan Jr John johnxhoggan@gmail.com IP Rogueing;
Holcombe Craig Craig.holcombe@simplot.com Simplot;
Holden Zach zholden@wsu.edu WSU;
Holm David david.holm@colostate.edu CSU;
Jensen Andy ajensen@potatoes.com IPC/OPC/WSPC;
Knowles Rick rknowles@wsu.edu WSU;
Kole Pat patrick.kole@potato.idaho.gov IPC;
Koym Jeff j-koym@tamu.edu TAMU;
Lowder Chelsey chelseyl@uidaho.edu UI;
Martin Mel melvin@melsconsulting.com Martin Consulting;
Miller Creighton jcmillerjr@tamu.edu TAMU;
Navarre Roy roy.navarre@ars.usda.gov USDA-ARS;
Nedrow Bret bret.nedrow@simplot.com JRS;
Novy Rich rich.novy@ars.usda.gov USDA-ARS;
Olsen Nora norao@uidaho.edu UI;
Paget Stephen stephen.paget@simplot.com Simplot;
Pavek Mark mjpavek@wsu.edu WSU;
Peterson Skyler skypeterson@ucanr.edu UC;
Portenier Ransey ranseyp@uidaho.edu UI;
Salaiz Tom thomas.salaiz@mccain.com McCain Foods USA;
Sathuvalli Vidyasagar vidyasagar@oregonstate.edu OSU;
Scheuring Douglas d-scheuring@tamu.edu TAMU;
Schneider Brian brian.schneider@ars.usda.gov USDA-ARS;
Shock Clint clinton.shock@oregonstate.edu OSU/MES;
Spear Rhett rhett.spear@wsu.edu WSU;
Stark Jeff jstark@uidaho.edu UI;
Thill Donn dthill@uidaho.edu UI;
Vargas Sean sean.vargas@simplot.com Simplot;
Vincent Nick nick.vincent@simplot.com Simplot;
Whitworth Jonathan jonathan.whitworth@ars.usda.gov USDA/ARS;
Wilson Rob rgwilson@ucanr.edu UC IREC;

Brief Summary of Minutes

Chair Tom Drader called the meeting to order at 10:38 am

Attendance Sheet passed around the room

Motion to accept agenda by Larissa Dawson, SunRain; seconded by Dave Holm, CSU; approved

Jeff Coym motioned to approve minutes, seconded by Tina Brandt; approved

NIMSS Update - Donn Thill, University of Idaho. Late spring 2015 MRC to review new proposal for temp - WERA-027. May come back to writing committee for final revisions, with final approval in summer. NIFA has been included into the President’s FY16 budget. Increased $125 M over FY15. Additional $80 M for public private partnerships. Additional $20 M for competitive grants. A new administrative advisor will be appointed for WERA-27 this summer following the retirement of the current administrative advisor.

State Reports
Texas – Creighton Miller (hard copy given; electronic copy from Douglas Scheuring). Problems with specialty crops grant. Resubmission deadline passed; John Keeling – funds from MI and ME and others were sent to TAMU. ZebraChip lines have tolerance, NOT resistance. Charlie Rush: Choice ZC study update.

CA – Black dot more evident.

PVMI Update – Jeanne Debons. PVMI has collected royalties and licenses in excess of $3.3M. From this $1.4M has been directed back to the universities in the form of royalty checks and an additional $206,000 directly to support maintenance of PVMI lines, PVP costs and seed certifications costs. An additional $600,000 is held in an account for an operating reserve. The acreage of PVMI varieties was up to 6,871 in 2014 which compares to 5,704 in 2013. Work in Canada and internationally was summarized. A graphic showing cumulative annual income was presented that showed the 2013/14 fiscal year was behind the previous two years. This was thought to be because it was a late year. That money is coming in now. Royalty income by variety was presented as well as seed acreages for the 2014 crop year. Industry welcome to make early selections after the single hill and after the second field trial. This was implemented in 2014. $200 initially, then $500 yearly after. Discussion ensued regarding single hill ownership using the flagging method. There was an issue when conflicting parties on same selection team. According to John Hoggan, this is very beneficial as the specialty market is such an ever changing market and clones can and must be fast-tracked. This process has not been approved for russets nor for chipping selections. Additional discussion surrounding possibility of same clone being selected from different university programs, and how to handle numbering/naming. The discussion was tabled for more proper forum.

Western Russet Report - Rich Novy. Reviewed: 2014 Western Regional Potato Variety Trial Report; compiled by Brian Schneider. (www.ars.usda.gov/main/docs.htm?docid=21888). Clarification on Table 5 (2014 Western Regional Potato Variety Trial Report ) - all locations now reporting >10 oz. Improved tuber early blight lesions assessment. Numbers reported on Table 12 are CY13 numbers; these will be replaced soon with updated data. Table 12 (2014 Western Regional Potato Variety Trial Report) - Zero for soft rot = none. Need to add glycoalkaloid comment for A02507-2LB in summary table.

Post-harvest report - Rick Knowles. Reported on GA as a means for increasing tuber length of A02507-2LB. GA applied after seed cutting, as a dip (5 minute). Being used in CA to shift tuber size distribution. Marketable yield was unaffected. GA may not be needed in Idaho where L/W is acceptable.

Chip Trial Report - Dave Holm. Reviewed: 2014 Western Regional Chipping Potato Trial Report; compiled by David Holm and Caroline Gray. Jonathan Whitworth clarified early blight portion of Table 11 (2014 Western Regional Chipping Potato Trial Report). Peggy Bain question whether to grade according to diameter; Dave Holm thinks grade data is ok by weight.

Red Specialty Trial Report - Jeff Koym. Commented that selections for “small potato” market will need additional comments during grading. Chuck Brown asked what the market is for dark yellow fleshed varieties. John Hoggan replied that Dutch and German markets prefer yellow/cream to yellow/dark-yellow, and is dependent on export markets.

Line Disposition. POR06V12-3 – decision to return to regional trial dependent on additional location testing for glycoalkaloids. The three (3) Texas entries to be Dual, not Fresh as listed on table. Western Regional Red/Specialty Trial – Transition is to move material entirely to WA due to very niche markets. Seed Supplies – Brian Charlton. Requests needed by Friday, February 13.

Additional Business. Don Horneck’s OSU agronomist position open, tenure track (70% extension, 20% research, 5% service). Starting in March, Yi Wang, UI storage specialist begins in Kimberly

2016 Meeting Date/Location: Fort Collins, CO; Date TBD

Election of Secretary: Chandler Dolezal, WSU

Meeting Adjourned at 2:20 pm

Accomplishments

California: Rob Wilson, California Rocky Mountain Research & Extension Center, completed two cultural management studies in 2014 that included entries from the Western Regional program. One management study evaluated black spot and white knot bruising on Russet entries in storage. The other management study evaluated the appearance and quality of red and yellow skin specialty varieties after storage and commercial polishing. Colorado: Ninety eight parental clones were intercrossed with emphasis on russet and red cultivar development, general disease resistance, yellow flesh cultivar development, and disease resistance (PVY resistance). Approximately 39,308 first-size seedling tubers representing 166 families were produced from 2012 greenhouse crosses for initial field selection in 2015. These seedlings represent crosses segregating primarily for russet, reds, specialty types, and resistance to late blight, PVY, corky ringspot, and nematodes. Colorado grew 87,922 first-year seedlings representing 388 families in 2014, with 684 selected for subsequent planting, evaluation, and increase in future years. Another 702 clones were in 12-hill, preliminary, and intermediate stages of selection. Twelve advanced variety trials were grown under “low input” conditions, primarily for reduced nitrogen and fungicide. Idaho: In 2014 the Idaho breeding program evaluated over 100,000 1st field generation clones, at three seed sites. Advanced breeding clones being evaluated in 32 replicated field trials in six locations across southern Idaho. Thirty-six entries were entered in the Tri-State and Western Regional Trials to assess their performance relative to industry standards. Sixteen advanced breeding clones and varieties were entered into the 2014 National Fry Processing Trial (NFPT) which seeks to identify processing varieties having low acrylamide that could be rapidly adopted by the U.S. potato processing industry. Additional studies were conducted to determine optimal seed management practices, seed piece spacing, and vine kill timing for several of the advanced clones in the regional trial. Oregon: Four russet clones were evaluated in regional trials of which three will be retained for further evaluation in 2014, two russet clones were evaluated in the Tri-state trials and three specialty clones were evaluated and both the russet clones and two of three specialty clones were selected for advanced testing. Statewide trials included 20 russets, 5 chipping and 8 specialty clones. Of these clones 8 russet clones, 2 chipping clones and 4 specialty clones were promising and will be evaluated further in state wide advanced trials. Texas: Six hundred and fifty three parental combinations resulted in 92,581 first year seedlings, and were grown for selection near Springlake and Dalhart. Additionally, 258 original selections were made and 69 clones were intercrossed at Lubbock to produce 116 families. Seedlings tubers were received from the Colorado (20,390), Idaho (6,811), North Dakota (9,725), Oregon (37,500), and Wisconsin (2,034) breeding programs. The Texas breeding program grew 16,121 seedling tubers in the greenhouse at College Station from true seed and sent seedling tubers to Colorado (10,186), Idaho (3,283), North Dakota (3,186), and Wisconsin (3,609). Trials were conducted at Weslaco (winter), Springlake (spring), and Dalhart (summer) with a total of 888 advanced selections/new cultivars evaluated in 32 separate trials involving planting/harvesting over a nine month period. The Texas Program had eleven entries in the National Chip Processing Trial. The Texas Potato Field day was held on July 17th near Springlake, which included attendees from Canada to Mexico. Virtually all of the russet potatoes grown in Texas in 2014 were to the improved Texas Russet Norkotah strains. Washington: The 2014 Washington “Potato Cultivar Yield and Postharvest Quality Evaluations” includes a multi-year summary of russet-type clones that are graduating from the Regional Variety Trial. The 2014 WSU Commercial Potato Seed Lot Trial included 44 varieties. Currently 2 of 4 graduate students are currently being paid with PVMI royalties returned to the WSU Potato Group. WSU conducted 8 potato variety trials and multiple agronomy trials on new and existing varieties, including row width, fertility, tuber length, water deficit, and various seed treatment or nutrient additive trials. The 2015 Regional Russet Trial will include 28 entries with 10 coming from Idaho, 5 from Colorado, 6 from Oregon, and 3 from Texas, as well as the 4 standard checks. The 2015 Regional Chip Trial will include 7 entries with 4 coming from Colorado, 1 from Oregon, and the 2 standard checks. The 2015 Regional Red/Specialty Trial will include 23 entries with Idaho entering 1 red skin/white flesh, 1 red skin/yellow flesh, 1 purple skin/yellow flesh, and 3 yellow skin/yellow flesh varieties; Colorado entering 1 red skin/white flesh, 3 red skin/yellow flesh, 2 purple skin/yellow flesh, and 2 white skin/yellow flesh varieties; and Texas entering 1 red skin/white flesh, 2 red skin/yellow flesh, 1 white skin/yellow flesh, and 2 white skin/white fleshed varieties; and 3 standard checks.

Publications

Novy, R.G., J.L. Whitworth, J.C. Stark, B.A. Charlton, S. Yilma, N.R. Knowles, M.J. Pavek, R.R. Spear, T.L. Brandt, N. Olsen, M. Thornton, C.R. Brown. 2014. Teton Russet: An Early-Maturing, Dual-Purpose Potato Cultivar Having Higher Protein and Vitamin C Content, Low Asparagine, and Resistances to Common Scab and Fusarium Dry Rot. American Journal of Potato Research 91:380-393. Whitworth, J.L., R. G. Novy, J. C. Stark, S.L. Love, M.K. Thornton, B.A. Charlton, S. Yilma, N. R. Knowles, M. J. Pavek, X. Wang , J.J. Pavek. 2014. Huckleberry Gold: A specialty market potato with purple skin, yellow flesh, high tuber antioxidants, and resistance to potato cyst nematode (H1) and Potato virus X (Nb and Rx1). American Journal of Potato Research 91: 447-458.

Impact Statements

From the Colorado breeding program, Plant Variety Protection was granted for three varieties, and applications are in process for five others, and exclusive rights were granted to two additional varieties, providing the potato industry with additional russet and specialty varieties with enhance culinary properties and disease resistances.
By distributing seedling tubers to Idaho (USDA-ARS), Maine, North Dakota, Oregon, Texas, Wisconsin, and Alberta, Canada (Agriculture Canada), the Colorado breeding program continues to improve the genetic diversity of potato breeding programs.
A new website for the Colorado State University potato program was launched (www.potatoes.colostate.edu), providing growers and agronomists best growing practices of new varieties.
Idaho?s breeding program emphasizes selecting clones with adaptation to local conditions, resistance to multiple disease, and utility in both fresh and processing markets, thereby increasing production efficiency, and potentially reducing grower inputs. Release documents are being prepared for four Idaho varieties with high yield potential, improved culinary qualities and resistances to multiple diseases.
Progress is being made in Idaho on developing germplasm with resistance to PVY, PVX, and PLRV, PMTV, late blight (foliar and tuber), nematodes, corky ringspot and zebra chip disease. This germplasm will be shared with breeding programs throughout North America, which will provide solutions to serious potato disease problems.
A 2014 Idaho study showed that N fertilizer use efficiency of five recently released potato varieties was 10-35% better than Russet Burbank. These results have a direct impact on improving sustainable farming by potentially reducing fertilizer inputs.
Oregon?s release, AmaRosa, is currently one of the most widely planted red-skinned/red-fleshed varieties in USA certification programs. Purple Fiesta (Purple Pelisse) seed acreage was 15% of Purple Majesty, the most widely planted purple-skinned/purple-fleshed variety. In addition to Yukon Nugget, this new variety, released by Oregon State University in 2014, provides growers and consumers with additional selections of specialty potatoes with improved appearance and culinary qualities.
A major effort of the Texas breeding program continues to focus on Zebra Chip with efforts concentrated on improved detection methods and IPM practices for psyllid control for growers. Findings from this research will help growers control this disease using practices that are less costly and environmentally safer.
The Texas breeding program plans to release ATX91137-1Ru (Reveille Russet) an early maturing high yielding variety, giving growers more options for increased yield and quality.
Varieties recently released by the Tri-State potato program are now produced on more than 141,000 acres in the Pacific Northwest with value to growers estimated at approximately $510 million.
Through continued potato research and extension efforts 2014 US farm-gate value of Tri-State varieties increased by approximately $15 million compared to 2012, and the total US PVMI certified seed acreage for the 2014 seed crop year is 6,871 compared to 5,704 in 2013, 6,535 in 2012 and 6,426 in 2011.
Showing the wide-reaching impact of WERA-27 potato variety development, the following varieties have been submitted for Canadian grant of rights (PBR): AmaRosa, Huckleberry Gold, Palisade Russet, Sage Russet, Teton Russet, and the following varieties have begun field trials for future PBR: Payette Russet, Pomerelle Russet, Mountain Gem Russet, Targhee Russet, Smilin? Eyes.
Expanding beyond North America, the global impact of disease resistant varieties is exemplified by the variety Defender, with seed exported to Bangladesh according to Bangladesh importation specifications. This was accomplished with funding from an Emerging Markets Program Grant (EMP) proposal and a second QSP grant to cover transportation costs.
Potato Variety Management Insitute (PVMI), working with Interseed Potatoes GmbH in Germany, has submitted applications to CVPO to protect Classic Russet and Blazer Russet in 2013 and for Alpine Russet and Clearwater Russet in 2014, giving growers in that part of the globe access to these high yielding varieties. Norika GmbH currently is submitting applications to CVPO for Huckleberry Gold, AmaRosa, TerraRosa and Purple Pelisse, again showing the global impact of improved culinary quality varieties.