Dr. Kenneth A. Rykbost

Phone: (541) 883-4590 | Fax: (541) 883-4596
E-mail: Kenneth.Rykbost@orst.edu

Position | Education | Memberships | Expertise | Representative Publications

• B.S., Agricultural Engineering, Cornell University, 1963
• M.S., Agronomy, Cornell University, 1966
• Ph.D., Soil Sciences, (Civil Engineering minor) Oregon State University, 1973

• Selection and evaluation of potato breeding lines with special interest in red-skinned selections
• Development of variety-specific cultural management practices for potatoes (population, nutrition)
• Potato seed management (seed size, seed treatment, seed conditioning)
• Control of nematodes and related diseases in potatoes
• Weed management for potatoes and sugarbeets
• Sugarbeet variety evaluation
• Cultural management for sugarbeets (populations, fertility, time of planting)
• Hydrology and water quality in relation to agricultural activities

• Rykbost, K.A., R.L. Dovel, et al. 1987-2001. Crop research in the Klamath Basin, Annual Reports. Special Reports 825, 839, 861, 876, 895, 925, 934, 949, 956, 981, 992, 1007, 1015, 1030, 1042. Agricultural Experiment Station, Oregon State University, Corvallis, OR.
• Rykbost, K.A. and B.A. Charlton. 2001. Nutrient loading of surface waters in the Upper Klamath Basin: agricultural and natural sources. Special report 1023. Agricultural Experiment Station, Oregon State University, Corvallis, OR. 14 numb leaves.
• Rykbost, K.A., R. Voss et al. 2001. Winema: an early maturing, red-skinned cultivar for fresh market. Am J Potato Res 78:371-375.
• Rykbost, K.A. R. Voss et al. 2001. Mazama: an early maturing, bright red-skinned cultivar for fresh market. Am J Potato Res 78:383-387.
• Mosley, A.R., K.A. Rykbost et al. 2001. Klamath Russet: a full season, fresh market, long russet. Am J Potato Res 78:377-381.
• Ingham, R.E., P.B. Hamm and K.A. Rykbost. 2001. Control of corky ringspot in Oregon. Am J Potato Res 78:460 (Abst.)
• Geary, B., P. Hamm, D.A. Johnson, S.R. James, and K.A. Rykbost. 2000. Effects of fungicides and location on development of silver scurf. Am J Potato Res 77:399. (Abst.)
• Mosley, A.R., S.R. James, D.C. Hane, K.A. Rykbost et al. 2000. Umatilla Russet: a full season long russet for processing and fresh market use. Am J Potato Res 77:83-88.
• Mosley, A.R., S.R. James, C.C. Shock, D.C. Hane, K.A. Rykbost et al. Russet Legend: a full season long russet for processing and fresh market use. Am J Potato Res. 77:77-82.
• Mosley, A.R., S.R. James, K.A. Rykbost et al. 2000. Century Russet: a high-yielding fresh market cultivar with Verticillium resistance. Am J Potato Res. 77:161-165.
• Rykbost, K.A. and K.A. Locke. 1999. Effects of seedpiece size on performance of three potato varieties in the Klamath Basin of Oregon. Am J of Potato Res. 75:75-82.
• Rykbost, K.A., D.C. Hane, P.B. Hamm, R. Voss, and D. Kirby. 1999. Effects of seedborne potato virus Y on Russet Norkotah performance. Am J of Potato Res. 75:91-96
• Carlson, H.L., K.A. Rykbost, D.W. Kirby, and R.L. Dovel. 1999. Effect of sugarbeet planting date and plant population on sugar yield in the Klamath Basin, J of Sugarbeet Tech 36(3):56. (Abst.).
• James, S.R., D.C. Hane, A. R. Mosley, K.A. Rykbost, and C.C. Shock. 1999. A world-wide-web database for potato breeding selections. Am J Potato Res 76:373 (Abst.)
• Williams, R.E., R.E. Ingham, and K.A. Rykbost, 1996. Control of corky ringspot disease in potatoes with Telone in the Pacific Northwest: 1990-1994. In Down to Earth, Dow Elanco, Indianapolis, Indiana. 51:25-29.
• Feibert, E.B.G., S.R. James, K.A. Rykbost, A.R. Mitchell, C.C. Shock. 1995. Foliar applied methanol and potato yield and quality. Hort Science 30:494-495.
• Ingham, R.E. and K.A. Rykbost. 1995. Relationship between seasonal population growth of Columbia root knot nematode and soil degree-days in potato. Am Potato J 72(10):631. (Abst).
• Rykbost, K.A. and R. Ingham. 1994. Timing and severity of corky ringspot infection of four potato cultivars. American Potato Journal 71(10):697 (Abst)
• Rykbost, K.A., S. James, D. Hane, A. Mosley, and K. Locke. 1995. Cultural Management of Century Russet Potatoes. Special Report 942. Agricultural Experiment Station and Oregon State University Extension Service. Corvallis, Oregon. 5 numb leaves.
• Rykbost, K.A., H.L. Carlson, and R. Voss. 1990. Potato varieties - an introduction to variety characteristics, management, and performance in the Klamath Basin. Special Report 859. Agricultural Experiment Stations, Oregon State University, Corvallis, Oregon, and University of California, Davis California. 20 numb leaves.
• Rykbost, K.A., and J. Maxwell. 1993. Effects of plant population on the performance of seven potato varieties in the Klamath Basin of Oregon. Am Potato J 70:463-474.
• Rykbost, K.A., N.W. Christensen, and J. Maxwell. 1993. Fertilization of Russet Burbank in short-season environment. Am Potato J 70:699-710.
• Baier, J.H. and K.A. Rykbost. 1976. The contribution of fertilizer to the groundwater on Long Island. Ground Water. 14:439-448.
• Author or co-author of 23 refereed journal articles, 22 abstracts, and over 100 technical reports and other publications.
• Recipient of over $800,000 in grants, contracts, and donations in support of Klamath Experiment Station Research Projects from 1987-2002.