Brief Summary of Minutes of Annual Meeting

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.