Brief Summary of Minutes of Annual Meeting

This committee continues to perform in an outstanding manner. The committee attendance remains high and is composed of state researchers, extension specialists, federal ARS scientists and private sector participants and visitors. Thirty six attended the meetings this year in Portland. The nature of the work is such that different states perform many unique components of the efforts while all states participate in the field trials to give the potential new culitvars a solid test in different state environments and growing seasons. During the past year work by individual states resulted in the release of Colorado Russet, Rio Grand Russet, Fremont Russet, Durango Red and Colorado Rose by Colorado. Two other selections are showing promise and will likely be released during the next year. They are both colored flesh selections. Idaho released GemStar Russet. Texas is pursuing PVP for Sierra Gold and was granted PVP on the selection TXNS296. Texas reports the highest summer yield of Russet potatoes at 420 CWT/Acre. Poor growing season conditions negatively impacted the ability of this group to make the usual progress. There have also been a number of retirements and reassignments that will cause some redirection in the multi state project. Even given those conditions the work moves forward as several hundred thousand crosses were made and the evaluation begins again for new selections to help bolster the potato industry in the United States. A new emphasis for this group is to expand the economic impact studies of the program to states beyond Washington, Oregon and Idaho. This expansion will give a much clear picture of the economic value of potato variety improvement research. The intent of this committee was to find a replacement for Russet Burbank. They have accomplished that goal and now continue their work to improve the russet potato while at the same time moving into other areas like the fresh market and now even looking at salad potatoes and different flesh colored lines. As the AA to this group, I strongly endorse their continuing activity as they personify the reason for the existence of multi state research and education.

Blessington, T., A.L. Hale, D.C. Scheuring, and J.C. Miller, Jr. 2004. Effect of cooking and storage on antioxidant activity in potato (Solanum tuberosum L.). Hort Science 39:879. (Abstr.). Blessington, T., A.L. Hale, D.C. Scheuring, and J.C. Miller, Jr. 2004. Effect of cooking, storage, and gamma irradiation on antioxidant activity in potato (Solanum tuberosum L.). Amer. J. Potato Res. 81: (Abstr.). Brandt, T., N. Olsen, G.E. Kleinkopf, and S. Love. 2004. Managing Summit Russet Potatoes in Storage. University of Idaho Agricultural Experiment Station CIS no.1123. Brandt, T., N. Olsen, G.E. Kleinkopf, and S. Love. 2003. Storage Management for Umatilla Russet Potatoes. University of Idaho Agricultural Experiment Station BUL no.839. Brandt, T., N. Olsen, G.E. Kleinkopf, and S. Love. 2004. Storage Management for Gem Russet Potatoes. University of Idaho Agricultural Experiment Station CIS no.1118. Eldredge, E.P., C.C. Shock, and L.D. Saunders. 2004. Potato variety trials 2003. In Oregon State University Agricultural Experiment Station, Special Report 1055:147-162. http://www.cropinfo.net/AnnualReports/2003/03PotAnnRep.htm Essah, S. Y. C., Delgado, J. A., and Holm, D. G. 2004. Dry matter accumulation, partitioning, and leaf area duration in two Colorado red potatoes: Influence of nitrogen application rate. In Annual Meetings Abstracts [CD-ROM]. ASA, CSSA, SSSA, Oct. 31-Nov. 4, 2004. Seattle, WA. Essah, S. Y. C., Holm, D. G. and Delgado, J. A. 2004. Yield and quality of two U. S. Red Potatoes: Influence of nitrogen rate and plant population. Proceedings of the 4th International Crop Science Congress. p.186. (Abstr.) Granda, C., R.G. Moreira, S.E. Tichy, and J.C. Miller, Jr. 2004. A new approach to reduce the development of acrylamide in potato chips. Amer. J. Potato Res. 81:. (Abstr.). Grunenfelder, L., N.R. Knowles, L.K. Hiller and R.E. Thornton. 2004. Development of grading scales to assess tuber greening in retail markets. Proceedings of the 43rd annual Washington State Potato Conference. pp. 87-97. Grunenfelder, L., N.R. Knowles, L.K. Hiller and R.E. Thornton. 2004. Physiological studies of light induced greening in fresh market potatoes. Am. J. Pot. Res. (in press). Holm, D. G., Davidson, R. D., and Essah, S. Y. C. 2004. Colorado Rose: A new high yielding red. Colorado SpudItems. 1(3):5. Holm, D. G., Davidson, R. D., and Essah, S. Y. C. 2004. Rio Grande Russet: A new high quality fresh market russet. Colorado SpudItems. 1(2):5. Knowles, N.R. and L.O. Knowles. 2004. Advances in estimating and manipulating seed-tuber age and productivity. Proceedings of the 23rd annual National Potato Council Seed Seminar. pp. 36-44. Knowles, N.R. and L.O. Knowles. 2004. Development of methods for estimating and managing the yield potential of seed potatoes. Proceedings of the 2004 annual Idaho Winter Commodity Schools. 36:83-91. Knowles, N.R., L.O. Knowles and M.M. Haines. 2004. 1,4-Dimethylnapthalene treatment of seed potatoes affects tuber size distribution. American Journal of Potato Research (in press). Knowles, N.R., E.P. Driskill Jr. and L.O. Knowles. 2004. Effects of storage temperature regimes on processing quality of Russet Burbank, Ranger Russet and Umatilla Russet Potatoes. Proceedings of the 43rd annual Washington State Potato Conference. pp. 29-41. Knowles, N.R., L.O. Knowles and G.N.M. Kumar. 2004. Predicting the yield potentials of northern and southern seed lots in the Columbia Basin. Proceedings of the 87th Annual Meeting of the Potato Association of America, American Journal of Potato Research 81:70. Knowles, N.R. and L.O. Knowles. 2004. Predicting tuber set and size development from stem numbers. Pot. Progress IV(9):1-3. Knowles, N.R. and M.J. Pavek. 2004. WSU potato cultivar yield and postharvest quality evaluations for 2004. Washington State University Special Report. 148 pages Kumar, G.N.M., L.O. Knowles and N.R. Knowles. 2004. Physiological basis for the loss of wound-healing ability with advancing tuber age. Proceedings of the 87th Annual Meeting of the Potato Association of America, American Journal of Potato Research 81:70-71. Love, S.L., T. Salaiz, B. Shafli, W.J. Price, A.R. Mosley, and R. E. Thornton. 2004. Stability of Expression and Concentration of Ascorbic Acid in North American Potato Germplasm. Hortscience 39(1):156-160. Miller, C., J. Koym, D. Scheuring and A. Hale. 2004. 2004 Field Day Handbook. June 23, 2004. Texas Potato Variety Development Program. Tex. Agr. Exp. Sta., College Station and Lubbock. 24p. Miller, J.C., Jr., G.C.C. Tai, B. Ouellette, and J.P. Miller. 2004. Discriminating Russet Norkotah Intraclonal Selections Using Canonical and Cluster Analysis. Amer. J. Potato Res. 81:31-35. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, A. Johnson, and J.P. Miller. 2004. Southwest Regional Potato Variety Trial Report 2003. Tex. Agr. Expt. Sta., College Station and Lubbock. 21p. Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, A.L. Hale, R.E. Voss, H. Phillips, D.G. Holm and P. Naranjo. 2004. Southwestern Regional Potato Variety Trial. National Potato Germplasm Evaluation and Enhancement Report, 2003. U.S.D.A. Agricultural Research Center, Beltsville, MD, (submitted). Miller, J.C., Jr., J.W. Koym, D.C. Scheuring, A.L. Hale, R.E. Voss, H. Phillips, D.G. Holm and P. Naranjo. 2004. Southwest Regional Potato Variety Trial. National Potato Germplasm Evaluation and Enhancement Report, 2002. U.S.D.A. Agricultural Research Center, Beltsville, MD, (submitted). Miller, C., D. Scheuring, and J. Koym. 2004. Texas Potato Breeding Report, 2003. Tex. Agr. Exp. Sta., College Station and Lubbock. 152p. Miller, J.C., Jr., D.C. Scheuring, and J.W. Koym. 2004. Variety development and testing, Texas. National Potato Germplasm Evaluation and Enhancement Report, 2002. U.S.D.A. Agricultural Research Center, Beltsville, MD, (submitted). Miller, J.C., Jr., D.C. Scheuring, and J.W. Koym. 2004. Variety development and testing, Texas. National Potato Germplasm Evaluation and Enhancement Report, 2003. U.S.D.A. Agricultural Research Center, Beltsville, MD, (submitted). Mosley, A.R. and S. Yilma. 2004. Crop Science Extension and Foundation Seed Production. Research Progress Reports, The Oregon Potato Commission, Portland. pp. 69-73. Mosley, A.R. and S. Yilma. 2004. Potato Breeding and Varietal Development. Research Progress Reports, The Oregon Potato Commission, Portland. pp. 53-69. Mosley, A, S. Yilma, D. Hane, S. James, K. Rykbost, S. Shock, B. Charlton, E. Eldredge and L. Leroux. 2004. Western Oregon Variety Trials. Tri-State potato variety trials  2003. Idaho Agric. Exp. Sta. Progress Rept. No. 371, pp. 92-106. Pavek, M.J. and R.E. Thornton. 2004. Is your potato planter restricting your profit potential? Proceedings of the Winter Commodity Schools  2004. University of Idaho Cooperative Extension System, Vol 36, pp. 71-78. Pavek, M.J. and R.E. Thornton. 2004. Understanding the influence of planting depth and post-planting tillage on potato production. Abstract  The 87th Annual Meeting of the Potato Association of America. Am J Potato Res Vol. 81 pp. 80-81. Pavek, M.J. and R.E. Thornton. 2004. Economic impact of missing and irregularly spaced potato plants. Abstract  The 87th Annual Meeting of the Potato Association of America. Am J Potato Res Vol. 81 p. 80. Reddivari, L., A.L. Hale, D.C. Scheuring, and J.C. Miller, Jr. 2004. Carotenoid content of specialty potato selections as affected by genotype and crop year. Amer. J. Potato Res. 81:. (Abstr.). Reddivari, L., A.L. Hale, D.C. Scheuring, and J.C. Miller, Jr. 2004. Identification of specialty potato selections with high antioxidant activity. HortScience 39:812. (Abstr.). Reyes, L.F., J.C. Miller, Jr., and L. Cisneros-Zevallos. 2004. Environmental conditions influence the content and yield of anthocyanins and total phenolics in purple- and red-flesh potatoes during tuber development. Amer. J. Potato Res. 81:187-193. Shock, C.C., E.P. Eldredge, and L.D. Saunders. 2004. Tuber bulking rate and quality of processing for early harvest. In Oregon State University Agricultural Experiment Station, Special Report 1055:163-181. http://www.cropinfo.net/AnnualReports/2003/PotatoEarHarvBulking.htm. Thornton, R.E. and N.R. Knowles. 2004. WSU potato cultivar yield and postharvest quality evaluations for 2003. Washington State University Special Report. 144 pages. Woodell, L., N. Olsen, T.L. Brandt, G.E. Kleinkopf. 2004. Vine Kill and Long-term Storage of Ranger Russet Potatoes. University of Idaho Agricultural Experiment Station CIS no. 1119.