Brief Summary of Minutes of Annual Meeting

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.

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.