Progress 09/01/17 to 08/31/19

Outputs
Target Audience:The long-term process of potato cultivar development involves many target audiences. Included are potato growers, shippers,processors, research and extension personnel, the food distribution system, and the consumer. We also provide studentinternships to secondary and undergraduate students. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?Several graduate and undergraduate students are actively working with each of the programs. PIs and associated staff have attended professional meetings as well as training courses. How have the results been disseminated to communities of interest?A field day was held on June 6th in Kern County, California with over 80 participants. In addition to local participants, many attendees were from other statesand countries and included the Southwestern Project Leaders. An annual grower's dinner meeting was held in the evening which allowed for presentation of research reports and additional grower and industry interaction.Results from the Tulelake trials were presented at the annual IREC field day and annual Klamath Basin Potato Seminar co-sponsored by the University of California and Oregon State University. In 2018, 93 grower participants attended the IREC Field Day and 41 participants attended the winter potato meeting.The Texas Potato Field day was held on July 12th near Springlake, which included 75 attendees (growers, industry representatives and research collaborators) from Canada to Mexico. Current developments related Zebra Chip research were reported and discussed. Attendees received a Potato Field Day handbook, which provides information on parentage, a brief description of the selections, and information on the trials viewed.Updates on the Colorado Potato Breeding and Selection Program were reviewed at an open house on December 4th highlighting samples of recently harvested advanced selections. Sixty-five producers were present. On December 18, growers met to discuss their experiences with several advanced selections and to suggest which ones should be considered for naming. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? Impact Statement 1: Several potato cultivars released by the Southwest Program were listed in 2017 among the top 50 grown based on seed acreage in the US. Those developed in the Southwestern Region ranked second among the four regional projects, thus validating the productivity of this project. Impact Statement 2:Of the top 20 russet cultivars produced for seed in 2017, eight were developed by the Colorado and Texas programs, (RN 296, RN S3, RN 278, RN 112, RN S8, Canela Russet, Centennial Russet, and Silverton Russet). Accomplishments:Currently the states in the Southwestern Regional Cultivar Development Program have several advanced selections available for grower evaluation. These include 25 from Texas and 47 from Colorado. Many of these selections are undergoing final stages of grower evaluation prior to naming and/or are currently available for exclusive release. New cultivars recently released include Crestone Russet (CO99053-3RU), Fortress Russet (AC99375-1RU), Masquerade (AC99329-7PW/Y), Mercury Russet (CO99100-1RU), Harvest Moon (AC99330-1P/Y), Red Luna (CO97233-3R/Y), Top Cat (TC1675-1RU), and Aspen Russet (CO95086-8RU) from Colorado, Sierra Rose (ATTX961014-1R/Y), Reveille Russet (ATX91137-1Ru), and Vanguard Russet (TX08352-5Ru) from Texas. PVP was granted for Crimson King (PVP#201600314) in March 2018 and Reveille Russet (PVP#201500351) in April 2019. Releases/anticipated releases in 2019-20 include Yellow Rose Russet (COTX09022-3RuREY), Harlequin Gold (NDTX059759-3RY/Y Pinto), Winterset (CO02321-4W), Maritime Russet (CO97087-2RU), Nonpareil Russet (CO98067-7RU), Canada Rose (CO00277-2R), Harvest Moon (AC05175-3P/Y), CO05037-3W/Y, and CO05068-1RU. In addition, Southwestern cooperators participate in joint releases of cultivars cooperatively with states in other regions (WA, ID, OR, ND) and Canada. Southwestern/Western Regional Trials - Eight selections from the 2018 Southwestern Regional Trial were advanced to the 2019 Western Regional Trials. ATX06264s-4R/Y was advanced to the Red/Specialty Trial, CO10087-4RU and CO10091-1RU to the Russet Trial, CO09128-5W/Y, CO09218-4W/Y, and CO10064-1W/Y to the Yellow Flesh/Specialty Trial, and CO10073-7W and CO10076-4W to the Chip Trial. Entries for the 2019 Southwestern Regional Trials were also solicited. The 2019 Southwestern Regional Trials will include russet and specialty selections. Each trial site will consist of the following: russet trial (CO10085-1RU, CO11009-3RU and COTX08322-10Ru), yellow flesh trial (CO11250-1W/Y and CO11266-1W/Y), red trial (NDTX071258Bs-1R), and the chip trial (ATTX07042-3W, CO11023-2W, CO11023-9W, CO11037-5W, TX09403-15W, and TX09403-21W). Complete results (2005-2018) of the Southwestern trials can be obtained from the Texas potato website (potato.tamu.edu). Associated Trials and Locations - The Texas program evaluated around 300 clones (all market classes) with grower cooperators at two locations, near Springlake on the southern High Plains (14 replicated trials), and near Dalhart at the northwest corner of the panhandle region (22 replicated trials). In addition, advanced selections from the Texas program were evaluated in Florida, Maine, Michigan, Missouri, New Mexico, New York, North Carolina, North Dakota, Oregon, Idaho, Washington, Wisconsin and New Brunswick, Canada.In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. Primary test sites for California are Bakersfield in Southern California and Tulelake near the Oregon border. The diverse climate in California allows California cooperators to evaluate selections in Bakersfield during the winter, spring, and summer months and Tulelake during spring, summer, and fall. California currently lacks a public potato breeding program and instead works closely with theSouthwestern and Western Regional programs. Southwestern selections were evaluated in Bakersfield and Tulelake in 2018. Over 200 advanced selections/cultivars were evaluated in replicated trials in Bakersfield. Work at Tulelake included evaluation of 52 advanced selections in three replicated trials. Verticillium wilt susceptibility screening was conducted on all Southwestern selections at Tulelake.Colorado trials, for all market classes, were conducted in the San Luis Valley, near Center, and with growers in Northern Colorado near Wray. Additional trials, outside the Southwestern and Western Regional area, with advanced Colorado selections, included Florida, Maine, Maryland, Michigan, Missouri, Minnesota, New Mexico, New York, North Carolina, North Dakota, Pennsylvania, Wisconsin, as well as Alberta and New Brunswick, Canada. Phytonutrient Studies.The main objectives of these studies are to identify parents for use in the Texas and Colorado breeding programs and to develop improved potato cultivars with increased health promoting compounds. Parents with high levels of phytonutrients have been incorporated into the hybridization programs. Several publications have resulted from this work over the years.Texas evaluated total antioxidant activity (using the DPPH method as described by Brand-Williams, et al. 1995) for all advanced clones (around 60 clones per year including all market classes) entered in the Southwestern and Western Regional Trials. These evaluations are performed in collaboration with Dr. Anna Hale (USDA-ARS Houma, LA).Colorado has various initiatives underway to enhance the carotenoid content of potato cultivars. The first was initiated in 1996 with the first field selections from seedling tubers received from Agriculture and Agri-Food Canada and in 1998 from the USDA-ARS, Aberdeen, Idaho. This provided the foundation for developing yellow-fleshed cultivars in the Colorado program. Other materials have been derived from Solanum phureja x Solanum stenotomum crosses adapted to long-day growing conditions. Material derived from these crosses has a five- to ten-fold increase in carotenoids compared to Yukon Gold, the standard yellow-fleshed cultivar.Colorado State University conducted a comprehensive analysis of raw and cooked potato tubers on 60 unique potato genotypes that span five market classes including russet, red, yellow, chip, and specialty potatoes. The analyses detected 2,656 compounds that included known bioactives (43 compounds), nutrients (42), lipids (76), and 23 metals. The most notable metabolite profiles were observed in yellow-flesh potato which had higher levels of carotenoids and specialty potatoes which had the higher levels of chlorogenic acid as compared to the other market classes.Taken together, the analysis characterized significant metabolite and mineral variation in raw and cooked potato tuber and support the potential to breed new cultivars for improved health traits. Disease Resistance - Several advanced selections are evaluated each year in Colorado for disease symptom expression. Primary diseases considered are bacterial ring rot and PVY. All susceptible asymptomatic selections with weak or non-existent symptom expression are discarded. Several advanced selections from Colorado and Texas are also distributed annually to state/USDA-ARS collaborators in Florida, Idaho, Michigan, Minnesota, North Dakota, Oregon, Pennsylvania, Washington, and Wisconsin for additional disease evaluations. These selections are screened for one or more of the following diseases: corky ringspot, late blight, early blight, common scab, powdery scab, potato mop-top virus, PVY, and Verticillium wilt.There are three known PVY extreme resistance genes that have been used for breeding potato cultivars. The Ryadg gene is derived from Solanum tuberosum ssp. andigena, Rychc is derived from S. chacoense and Rysto from S. stoloniferum. Currently, a student is finishing a portion of his PhD project of screening 92 selections that had one resistant or putative resistant PVY parent. The extreme PVY resistance genes Ryadg and Rysto have also been introgressed in Texas breeding clones.

Publications

• Type: Journal Articles Status: Published Year Published: 2018 Citation: Bali, S., Patel, G., Novy, R., Vining, K., Brown, C., Holm, D., Porter, G., Endelman, J., Thompson, A., Sathuvalli, V. 2018. Evaluation of genetic diversity among Russet potato clones and varieties from breeding programs across the United States. PloS ONE 13(8):e0201415.https://doi.org/10.1371/journal.pone.0201415.
• Type: Journal Articles Status: Submitted Year Published: 2018 Citation: Bough, Raven A., Holm, David G., and Jayanty, Sastry S. Jayanty. Putative aroma biomarker identification for flavor in Solanum tuberosum L. using a trained sensory panel and HS-SPME GC-MS. Food Research International.
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Carley, C. A. S., Coombs, J. J., Clough, M. E., De Jong, W. S. Douches, D. S., Haynes, K. G., Higgins, C. R., Holm, D. G., Miller, J. C. Jr., Navarro, F. M., Novy, R. G., Palta, J. P., Parish, D. L., Porter, G. A., Sathuvalli, V. R., Thompson, A. L., Yencho, G. C., Zotarelli, L. and Endelman, J. B. 2019. Genetic Covariance of Environments in the Potato National Chip Processing Trial. Crop Sci. 59:107114.
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Chapparro, J. M., Holm, D. G., Broeckling, C. D., Prenni, J. E., Heuberger, A. L. 2018. Metabolomics and ionomics of potato tuber reveals an influence of cultivar and market class on human nutrients and bioactive compounds. Frontiers in Nutrition (5) 36. DOI:10.3389/fnut.2018.00036
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Endelman, J. B., Carley, C. A. S., Bethke, P. C., Coombs, J. J., Clough, M. E., Washington, L. De Silva, De Jong, W. S., Douches, D. S., Frederick, C. M., Haynes, K. G., Holm, D. G., Miller, J. C., Mu�oz, P. R., Navarro, F. M., Novy, R. G., Palta, J. P., Porter, G. A., Rak, K. T., Sathuvalli, V. R., Thompson, A. L., and Yencho, G. C. 2018. Genetic variance partitioning and genome-wide prediction with allele dosage information in autotetraploid potato genetics. Genetics 209:77-87.
• Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Essah, S. Y., Andales, A., Bauder, T., Holm, D. G. 2018. Response of three Colorado potato cultivars to deficit irrigation. Am. J. Potato Res. 95:214. (Abstract).
• Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Gray, C. P., Holm, D. G., Zavislan, K. A. 2018. Best practices for outreach among potato breeders and the industry for the evaluation of advanced selections. Am. J. Potato Res. 95:216. (Abstract).
• Type: Other Status: Published Year Published: 2018 Citation: Holm, D. G., Gray, C., and Gaudreau, K. 2018. 2017 Potato Breeding and Selection Research Report to the Colorado Potato Administrative Committees (Area II and Area III). 112pp.
• Type: Other Status: Published Year Published: 2018 Citation: Holm, D. G., Gray, C., Gaudreau, K. 2018. 2018 Open House and Advanced Selection Evaluation Meeting: Colorado advanced potato selections data summary. 44pp. (Unpub).
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Kalita, D., Holm, D. G., LaBarbera, D. V., Petrash, J. M, Jayanty, S. S. 2018. Inhibition of a-glucosidase, a-amylase, and aldose reductase by potato polyphenolic compounds. PLoS ONE 13(1): e0191025. https://doi.org/10.1371/journal.pone.0191025.
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Miller, J. C. Jr., Scheuring, D. C., Koym, J. W., Holm, D. G., Pavek, J. J., Novy, R. G., Whitworth, J. L., Stark, J. C., Charlton, B. A., Yilma, S., Knowles, N. R., Pavek, M., Nunez, J. J., Wilson, R., Brown, C. R., Shock, C. C., Long, C. M. 2018. Reveille Russet: An early, widely adapted, high-count-carton russet for the fresh market. Am. J. Potato Res. 95:7986.
• Type: Journal Articles Status: Published Year Published: 2018 Citation: Shock, C. C, Brown, C. R., Sathuvalli, V., Charlton, B. A., Yilma, S., Hane, D. C., Quick, R., Rykbost, K. A., James, S. R., Mosley, A. R., Feibert, E. B. G., Whitworth, J. L., Novy, R. G., Stark, J. C., Pavek, M. J., Knowles, N. R. Navvare, D. A., Miller, J. C. Jr., Holm, D. G., Jayanty, S. S., Debons, J., Vales, M. I., Wang, X., Hamlin, L. L. 2018. TerraRossa: A mid-season specialty potato with red flesh and skin and resistance to common scab and golden cyst nematode. Am. J. Potato Res 95:597-605.

Progress 09/01/17 to 08/31/18

Outputs
Target Audience:The long-term process of potato cultivar development involves many target audiences. Included are potato growers,shippers, processors, research and extension personnel, the food distribution system, and the consumer. We also provide student internships to secondary and undergraduate students. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?Several graduate and undergraduate students are actively working with each of the programs. PI's and associated staff have attended professional meetings as well as training courses. How have the results been disseminated to communities of interest?A number of meetings with grower groups, research advisory committees, and numerous individual stakeholders are held to review research results and seek input into future activities. Project leader participation in regional/national meetings and forums associated with the National Chip Processing Trials, National Fry Processing trials, Southwest Regional Trials, Western Regional Potato Trials, and the Potato Association of America provide primary forums for national stakeholder interaction. Additionally field days/openhouses provide growers with a forum for feedback regarding potato breeding and cultivar development efforts. Stakeholder Interactions - A field day was held on June 13th in Kern County, California with over 80 participants. In addition to local participants, many attendees were from other states and countries and included the Southwestern Project Leader from Colorado. An annual grower's dinner meeting was held in the evening which allowed for presentation of research reports and additional grower and industry interaction. Results from the Tulelake trials were presented at the annual IREC field day and annual Klamath Basin Potato Seminar co-sponsored by the University of California and Oregon State University. In 2017, 95 grower participants attended the IREC Field Day and 35 participants attended the winter potato meeting. The Texas Potato Field day was held on July 13th near Springlake, which included some 70 attendees from Canada to Mexico. Current developments related to Zebra Chip research were reported and discussed. Attendees received a Potato Field Day handbook, which provides information on parentage, a brief description of the selections, and information on the trials viewed. Updates on the potato breeding program were reviewed at the San Luis Valley Research Center field day on August 2, 2017. The Colorado Potato Breeding and Selection Program also had an open house on November 29 highlighting samples of recently harvested advanced selections. Sixty-five producers were present. Following this on December 8, growers met to discuss their experiences with several advanced selections and to suggest which ones should be considered for naming. What do you plan to do during the next reporting period to accomplish the goals?Potato trials are in the ground at all locations and associated data will be collected at harvest. Potential new cultivars are under evaluation and PVP's for these are in process.

Impacts
What was accomplished under these goals? Impact Statement 1: Of the top 20 russet cultivars produced for seed in 2016, nine were developed by the Colorado and Texas programs, [Russet Norkotah (RN) 296, RN S3, RN 278, RN 112, RN S8, Canela Russet, Centennial Russet, Rio Grande Russet, and Silverton Russet). Impact Statement 2: Russet Norkotah has been the most popular fresh market russet variety grown in the US. The highly successful Russet Norkotah clonal selections, developed by the Texas and Colorado programs, comprised almost 78% of the total 'Russet Norkotah' acreage accepted for certification in the US in 2016. The RN selections not only yield more but also require lower fertilizer inputs than Russet Norkotah. In 2016, these selections collectively represented the second most popular cultivar grown in the US, behind only Russet Burbank. Accomplishments: Each year the states in the Southwestern Regional Cultivar Development Program have several advanced selections available for grower evaluation. Many of these selections are undergoing final stages of grower evaluation prior to naming and/or are currently available for exclusive release. New cultivars named within the last five years include Crestone Russet (CO99053-3RU), Fortress Russet (AC99375-1RU), Masquerade (AC99329-7PW/Y), Mercury Russet (CO99100-1RU), Harvest Moon (AC99330-1P/Y), Red Luna (CO97233-3R/Y), Top Cat (TC1675-1RU), and Aspen Russet (CO95086-8RU) from Colorado, Sierra Rose (ATTX961014-1R/Y), and Reveille Russet (ATX91137-1Ru) from Texas. Releases/anticipated releases in 2018 include Vanguard Russet (TX08352-5Ru), Harlequin Gold (NDTX059759-3RY/Y Pinto). Recently, a certificate of Plant Variety Protection (PVP) was issued for Crimson King (CO97222-1R/R). The PVP application for CO02321-4W (Winterset) is currently under examination. In addition, Southwestern cooperators participate in joint releases of cultivars cooperatively with states in other regions. Southwestern/Western Regional Trials - The Southwestern Regional Trials are planted in five locations (Bakersfield, CA, Tulelake, CA, Center, CO, Dalhart, TX, and Springlake, TX) and the Western Regional Trials are planted in ten locations (Ontario, OR, Tulelake, CA, Center, CO, Aberdeen, ID, Kimberly, ID, Parma, ID, Hermiston, OR, Dalhart, TX, Springlake, TX, and Othello, WA). Results of the 2017 trial were discussed in detail at the Southwestern Regional Group meeting on January 21, 2018 in Kennewick, WA. Seven selections from the 2017 Southwestern Regional Trial were advanced to the 2018 Western Regional Trial. CO09079-5PW/Y was advanced to the Red/Specialty Trial, AOTX05043-1Ru, CO09036-2RU, CO09076-3RU, CO09205-2RU, and COTX05095-2Ru/Y to the Russet Trial, and CO08037-2P/P to the colored flesh trial. Entries for the 2018 Southwestern Regional Trial were also solicited. The 2018 Southwestern Regional Trials include russet, specialty and chip selections. Each trial site consists of the following: russet trial (CO10087-4RU and CO10087-4RU with Russet Norkotah as the check), yellow flesh trial (AC10376-1W/Y, CO10064-1W/Y, CO10097-2W/Y, CO10098-4W/Y, and CO10098-5W/Y with Yukon Gold as the check), red trial (ATX02263-1R/Y and CO06215-2R with Chieftain and Red LaSoda as the checks), and the chip trial (CO10073-7W and CO10076-4W with Atlantic and Snowden as the checks). Complete results (2005-2017) of the Southwestern trial are found on the Texas potato website (potato.tamu.edu). Associated Trials and Locations - In 2017, there were a number of additional trials with multiple test/evaluation sites in the three collaborating states. For example, the Texas program evaluated selections with grower cooperators at two locations, near Springlake on the southern High Plains (19 replicated trials), and near Dalhart at the northwest corner of the panhandle region (18 replicated trials). In addition, advanced selections from the Texas program were evaluated in Florida, Michigan, Nebraska, North Carolina, North Dakota, Oregon, Idaho, Wisconsin and New Brunswick, Canada. In 2017 there were 21,500 acres of potatoes harvested in Texas. In California, russet, red, white, and specialty potatoes are planted or harvested almost every day of the year. California's harvested potato acreage totaled 32,700 in 2017. Primary test sites for California are Bakersfield in Southern California and Tulelake near the Oregon border. The diverse climate in California allows California cooperators to evaluate selections in Bakersfield during winter, spring, and summer months and Tulelake during spring, summer, and fall. California currently lacks a public potato breeding program and instead works closely with the Southwestern and Western Regional programs. Southwestern selections were evaluated in Bakersfield and Tulelake in 2017. Over 200 advanced selections/cultivars were evaluated in replicated trials in Bakersfield in 2017. Work at Tulelake included evaluation of 51 advanced selections in three replicated trials. Evaluations included plant growth, tuber yield, tuber size and grade, internal and external qualities, and pest resistance. Verticillium wilt susceptibility screening was conducted on all Southwest selections at Tulelake. Colorado trials were conducted in the San Luis Valley, near Center, and with growers in Northern Colorado near Greeley and Wray. Additional trials, outside the Southwestern and Western Regional area, with advanced Colorado selections, included Florida, Maine, Maryland, Michigan, Missouri, Minnesota, New York, North Carolina, North Dakota, Pennsylvania, Wisconsin, as well as Alberta and Quebec, Canada. Colorado harvested 56,400 acres of potatoes in 2017. Colorado and Texas will again participate in the 2018 National Fry Processing Trial with two entries each. Texas will have 11 entries in the National Chip Processing trial this year and Colorado will have nine entries. Colorado has 26 entries in the pre-NCPT trial. Phytonutrient Studies - Texas continues to annually evaluate total antioxidant activity for advanced clones entered in the Southwestern and Western Regional Trials. Colorado continues to place a major emphasis on enhancing the carotenoid content of potato cultivars. To date, Colorado has named three yellow-fleshed cultivars (Masquerade, Harvest Moon and Red Luna) which have significantly more carotenoids compared to Yukon Gold, the standard yellow-fleshed cultivar. In a cooperative study with Dr. Adam Heuberger the chemical composition and diversity in cooked tubers from 60 potato lines spanning 5 market classes (russet, red, yellow, chip, specialty) were characterized . The study characterized the presence and variation of 42 human nutrients (e.g. amino acids, B vitamins, vitamin E), 43 bioactive compounds (e.g. chlorogenic acids, kukoamines, calystegines), and 23 metals such as iron, potassium, and zinc (submitted for publication in Frontiers in Nutrition, January 2018). Disease Resistance - Several advanced selections are evaluated each year in Colorado for disease symptom expression. Primary diseases considered are bacterial ring rot and PVY. All susceptible selections with weak or non-existent symptom expression are discarded. Several advanced selections from Colorado and Texas are also distributed annually to state/USDA-ARS collaborators in Florida, Idaho, Michigan, Minnesota, North Dakota, Oregon, Pennsylvania, Washington, and Wisconsin for additional disease evaluations. These selections are screened for one or more of the following diseases: corky ringspot, late blight, early blight, common scab, powdery scab, potato mop-top virus, PVY, and Verticillim wilt. A PhD student, after conducting a field phenotyping study in 2017 using 223 selections from PVY mapping population and 69 selections from the Colorado program, will do a marker analysis of selections that did not express PVY.

Publications

• Type: Journal Articles Status: Published Year Published: 2017 Citation: Endelman, J. B., Schmitz, C. A., Douches, D. S., Coombs, J. J., Bizimungu, B., DeJong, W. S., Haynes, K. G., Holm, D. G., Miller, J. C., Jr., Navarro, F. M., Novy, R. G., Palta, J. P., Porter, G. A., Sathuvalli, V. R., Thompson, A. L., and Yencho, G. C. 2016. Pedigree reconstruction with genome-wide markers in potato. Amer. J. Potato Res. 94:184-190.
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Heuberger, A. L, Chaparro, J., and Holm, D. G. 2017. Metabolite and mineral variation in a diverse set of potato cultivars and implications to breeding for human health. Am. J. Potato Res. 94:227. (Abstract).
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Holm, D. G., Gray, C. P., Jayanty, S. S., and Larson, K. M. 2017. Breeding for high carotenoid content in the Colorado Potato Breeding and Selection Program. Am. J. Potato Res. 94:227-228. (Abstract).
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Bough, R. A., Jayanty, S. S., and Holm, D. G. 2017. Profiling and prediction of fresh market potato flavor using sensory and chemical analysis. Am. J. Potato Res. 94:215. (Abstract).
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Zavislan, K. A., Holm, D. G., Gray, C. P., Essah, S. Y. C., Jayanty, S. S., Davidson, R. D., and Houser, A. J. 2017. Fortress Russet: A disease resistant potato cultivar from the Colorado Potato Breeding and Selection Program. Am. J. Potato Res. 94:249. (Abstract).
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Essah, S. Y. C., Andales, A. A., and Bauder, T. 2017. Deficit irrigation in early and medium to late maturity potato cultivars. Am. J. Potato Res. 94:221. (Abstract).
• Type: Other Status: Published Year Published: 2017 Citation: Holm, D. G., Gray, C., and Zavislan, K. 2017. 2016 Potato Breeding and Selection Research Report to the Colorado Potato Administrative Committees (Area II and Area III). 113pp.
• Type: Other Status: Published Year Published: 2017 Citation: Holm, D. G. and Gray, C. 2017. 2017 Open House and Advanced Selection Evaluation Meeting: Colorado advanced potato selections data summary. 45pp. (Unpub).
• Type: Other Status: Published Year Published: 2017 Citation: Miller, C., Koym, J., and Scheuring, D. 2017. Texas Potato Breeding Report, 2016. Texas A&M AgriLife Research,College Station and Lubbock. 320pp.
• Type: Other Status: Published Year Published: 2017 Citation: Miller, J. C., Jr., Koym, J. W, Scheuring, D. C. 2017. Southwest Regional Potato Variety Trial Report 2016. Texas A&M AgriLife Research, College Station and Lubbock. 20pp.
• Type: Other Status: Published Year Published: 2017 Citation: Miller, J. C., Jr., Koym, J. W, Scheuring, D. C. 2017. Western Regional Red/Specialty Trial Report 2016. Texas A&M AgriLife Research, College Station and Lubbock. 26pp.
• Type: Other Status: Published Year Published: 2017 Citation: Miller, C., Vales, I., Koym, J., and Scheuring, D. 2017. 2017 Field Day Handbook. July 13, 2017. Texas Potato Variety Development Program. Texas A&M AgriLife Research, College Station and Lubbock. 42pp.
• Type: Other Status: Published Year Published: 2017 Citation: Wilson, R., et.al. 2017. 2016 Progress Report. 2016 Potato Variety Development in Tulelake, CA. Intermountain Research and Extension Center Research Progress Report #174. Cooperative Extension, University of California. 24pp
• Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Kalitta, D., Holm, D. G., Petrash, M. J., and Jayanty, S. S. 2017. Aldose reductase inhibitory activities of color-fleshed potatoes. Am. J. Potato Res. 94:231. (Abstract).
• Type: Journal Articles Status: Published Year Published: 2017 Citation: Wang, Y., Snodgrass, L. B., Bethke, P. C., Bussan, A. J., Holm, D. G., Novy, R. G., Pavek, M. J., Porter, G. A., Rosen, C. J., Sathuvalli, V., Thompson, A. L., Thornton, M. T., and Endelman, J. B. 2017. Reliability of measurement and genotype x environment interaction for potato specific gravity. Crop Sci. 57:1966-1972.
• Type: Journal Articles Status: Published Year Published: 2017 Citation: Levy, J., Mendoza, A, Miller, J. C., Jr., Tamborindeguy, C., Pierson, E. 2017. Global gene expression in two potato cultivars in response to 'Candidatus Liberibacter solanacearum' infection. BMC Genomics (2017) 18:960. DOI 10.1186/s12864-017-4313-2.
• Type: Journal Articles Status: Published Year Published: 2017 Citation: Yilma, S., Charlton, B. A., Shock, C. C., Hane, D. C., James, S. R., Mosley, A. R., Rykbost, K. A., Feibert, E. B. G., Knowles, N. R., Pavek, M. J., Stark, J. C., Novy, R. G., Whitworth, J. L., Pavek, J. J., Corsini, D. L., Brandt, T. L., Olsen, N., Brown, C. R., Vales, M. I., Sathuvalli, V. 2017. Sage Russet: a new high yielding russet potato variety with cold-sweetening resistance, high vitamin C and protein contents and excellent fresh pack and processing potential. Amer. J. Potato Res. 94: 379-389.
• Type: Other Status: Other Year Published: 2017 Citation: Texas Zebra Chip research update and professional background/program direction of new breeder (Isabel Vales). Texas A&M AgriLife ZC Advisory Board Quarterly Teleconference, 1st Quarter, 2nd Year FY 2016  FY 2017. Thursday, March 23, 2017. Audience: Texas ZC Industry Advisory Board, Texas ZC AgriLife Research Advisory Board, Pacific Northwest Guests, Guest AgriLife ZC Scientists working on psyllids and Lso and Special Guests.
• Type: Other Status: Other Year Published: 2017 Citation: Screening potato for Zebra Chip resistance using field, greenhouse, and laboratory approaches. Sam Vigue, M. Isabel Vales, Creighton Miller, Douglas Scheuring, Jeff Koym, Cecilia Tamborindeguy, Julien Levy and Angel Chappell. Plant Breeding Circle. College Station, TX. Sept 12th, 2017.
• Type: Other Status: Other Year Published: 2017 Citation: The Texas A&M Potato Breeding Program. Isabel Vales, Creighton Miller, Douglas Scheuring, Jeff Koym and Angel Chappell. Inari Agriculture and Texas A&M Research, College Station, TX. June 6th, 2017.
• Type: Other Status: Other Year Published: 2017 Citation: Potato Variety Inventory  Texas A&M. Isabel Vales, Creighton Miller, Douglas Scheuring, Jeff Koym and Angel Chappell. Vegetable Working Group, College Station, TX, October 9-10, 2017.
• Type: Other Status: Other Year Published: 2017 Citation: Evaluation and Identification of Promising Potato Selections for Improved Cold Sweetening Resistance. J. Pandey, D. Scheuring, J. Koym, A. Chappell, C. Miller and I. Vales. Horticulture Graduate Council's Symposium. Texas A&M, College Station, TX. Nov. 30, 2017.
• Type: Other Status: Other Year Published: 2017 Citation: Screening Potato Germplasm for Resistance to Zebra Chip Disease. Samuel Vigue, M. Isabel Vales, Cecilia Tamborindeguy, J.R. Creighton Miller, Douglas Scheuring, Angel Chappell, Julien Levy, Jeffrey Koym. Horticulture Graduate Council's Symposium. Texas A&M, College Station, TX. Nov. 30, 2017.
• Type: Other Status: Other Year Published: 2017 Citation: Identification and Development of Zebra Chip Tolerant/Resistant Potato Cultivars. Creighton Miller, Isabel Vales, Douglas Scheuring, Jeff Koym, Cecilia Tamborindeguy and Julien Levy. Texas A&M AgriLife ZC Advisory Board Quarterly Teleconference (3rd quarter, 2nd year FY 2016-2017). College Station, TX. Sept. 18th, 2017.