Meet the Associated Faculty and Staff

Michele Warmund, Ph.D.

1-31 Agriculture Bldg.
Columbia, MO 65211
(573) 882-9632
WarmundM@missouri.edu

Research

In three of every five years, low temperatures eliminate or reduce fruit crops in Missouri. In response to this, Dr. Warmund conducts research on low temperature stress of horticultural crops. Her research program on apple and peach rootstocks serves the Missouri fruit industry. Dr. Warmund's rootstock research focuses on evaluation of pome and stone fruit rootstock field performance and improvement of rootstock propagation techniques. She also works on nursery production problems affecting the release of new plant material. As State Fruit Extension Specialist she works with commercial fruit producers focused on developing and providing educational materials for fruit and nut growers to increase production efficiency and thereby increase profitability. She also is involved in establishing and maintaining demonstration research plots to illustrate innovations in the fruit and nut industry. Dr. Warmund is contributing her pomological expertise as a collaborator on the UMCA chestnut and black walnut research program. Currently, her chestnut research projects include the development of primary and secondary burs and cultural practices to manage crop load, use of dwarfing rootstocks and interstems for high-density production, and graft incompatibility in Chinese chestnut. Black walnut studies focus on dwarfing rootstocks, the chilling requirements for flowering, sensory attributes of various cultivars, the seasonal development of the kernel, and the characterization of kernel necrosis and shriveling.

Recent Publications

• Warmund, M.R. 2011. Chinese chestnut (Castanea mollissima) as a niche crop in the central region of the United States. HortScience 46:345-347.
• Warmund, M.R., and M.V. Coggeshall. 2010. Flowering and fruit characteristics of black walnut cultivars at the Univer-sity of Missouri repository. Acta Horticulturae 861:177-182.
• Warmund, M.R. 2010. Descrip-tive analysis of kernels of black walnut (Juglans nigra L.) and Persian walnut (J. regia L.) Acta Horticulturae 861:401-407.
• Warmund, M.R., D.J. Enderton, and J.W. Van Sambeek. 2010. Bur and nut production on three chestnut cultivars. Journal of the American Pomological Society 64(2):110-117.
• Warmund, M.R., M.V. Coggeshall, and W.T. Stamps. 2009. Rest completion of eastern black walnut. Journal of the American Pomological Society 63(2):64-71.
• Warmund, M.R., J.E. Elmore, K. Adhikari, and S. McGraw. 2009. Descriptive sensory analysis of light, medium and dark colored kernels of black walnut cultivars. J. Sci. Food and Agric. 89:1969-1972.
• Warmund, M.R., and M.V. Coggeshall. 2009. Chip budding of ‘AU-Super’ Chinese chestnut scions on AU-Cropper and Qing seedling rootstocks. Acta Hort. 844:115-118.
• Warmund, M.R. 2009. Fertilizer applications affect foliar nitrogen, chlorophyll, shoot growth and yield of ‘Qing’ Chinese chestnut. Acta Hort. 844:451-456.
• Warmund, M.R., J. Elmore, M.A. Drake, and M.D. Yates. 2009. Descriptive analysis of kernels of selected black and Persian walnut cultivars. J. Sci. Food and Agric. 89(1):117-121.
• Brawner, S.A., and M.R. Warmund. 2008. Husk softening and kernel characteristics of three black walnut cultivars at successive harvest dates. HortScience 43:691-695.
• Takeda F., K. Demchak, M.R. Warmund, D.T. Handley, R. Grube, and C. Feldhake. 2008. Rowcovers improve winter survival and production of western trailing ‘Siskiyou’ blackberry in the eastern United States. HortTechnology 18(4):575-582.
• Warmund, M.R. 2008. Kernel color of three black walnut cultivars after delayed hulling at five successive harvest dates. HortScience 43:2256-2258.
• Warmund, M.R., P. Guinan, and G. Fernandez. 2008. Temperatures and cold damage to small fruit crops across the eastern U.S. associated with the April 2007 freeze. HortScience 43 (6): 1-5.
• Warmund, M.R., and J. Krumme. 2008. An evaluation of chilling models for estimating rest completion of erect blackberries. Acta Hort 777:275-281.
• Autio, W.R., T.L. Robinson, B.H. Barritt, J.A. Cline, R.M. Crassweller, C.G. Embree, D.C. Ferree, M.E. Garcia, G.M. Greene, E.E. Hoover, R.S. Johnson, K. Kosola, J. Masabni, M.L. Parker, R.L. Perry, G.L. Reighard, S.D. Seeley, and M. Warmund. 2007. Early performance of ‘Fuji’ and ‘McIntosh’ apple trees on several dwarf rootstocks in the 1999 NC-140 Rootstock Trial. Acta Hort 732:119-125.
• Autio, W.R., T.L. Robinson, B.H. Barritt, J.A. Cline, R.M. Crassweller, C.G. Embree, D.C. Ferree, M.E. Garcia, G.M. Greene, E.E. Hoover, R.S. Johnson, K. Kosola, J. Masabni, M.L. Parker, R.L. Perry, G.L. Reighard, S.D. Seeley, and M. Warmund. 2007. Early performance of ‘Fuji’ and ‘McIntosh’ apple trees on several semidwarf rootstocks in the 1999 NC-140 Rootstock Trial. Acta Hort 732:127-133.
• Robinson, T., L. Anderson, W. Autio, B. Barritt, J. Cline, R. Crassweller, W. Cowgill, C. Embree, D. Ferree, E. Garcia, G. Greene, C. Hampson, K. Kosola, M. Parker, R. Perry, T. Roper, and M. Warmund. 2007. A multilocation comparison of Geneva 16, Geneva 41, and M.9 apple rootstocks across North America. Acta Hort 732:59-65.
• Reighard, G., R. Andersen, J. Anderson, W. Autio, T. Beckman, T. Baker, R. Belding, G. Brown, P. Byers, W. Cowgill, D. Deyton, E. Durner, A. Erb, D. Ferree, A. Gaus, R. Godin, R. Hayden, S. Hirst, M. Kadir, H. Kaps, T. Larsen, N. Lindstrom, F. Miles, S. Morrison, D. Myers, P. Ouelette, C. Rom, W. Shane, B. Taylor, K. Taylor, C. Walsh, and M. Warmund. 2007. Growth and yield of ‘Redhaven’ peach on nineteen rootstocks at twenty North American locations. Acta Hort 732:271- 278.
• Warmund, M.R., C. Starbuck, and S. Kadir. 2007. Changes in fruit quality parameters of ‘Jonathan Rasa’ and ‘Delicious Flanagan’ apple in response to elevated temperatures. Trans Kansas Acad Sci 110 (3/4):1-9.
• Warmund, M.R., and M.V. Coggeshall. 2006. Determination of black walnut (Juglans nigra L.) harvest date with durometer measurements. Acta Hort 705:529-531.
• Autio, W., T. Robinson, B. Barritt, J. Cline, R. Crassweller, C. Embree, D. Ferree, M. Garcia, G. Greene, E. Hoover, R. Hohnson, K. Kosola, J. Masabni, M. Parker, R. Perry, G. Reighard, S. Seeley, and M. Warmund. 2005. Performance of ‘Fuji’ and ‘McIntosh’ apple trees after five years as affected by several semidwarf rootstocks in the 1999 NC-140 rootstock trial. J Amer Pom Soc 59:192-201.
• Autio, W., T. Robinson, B. Barritt, J. Cline, R. Crassweller, C. Embree, D. Ferree, M. Garcia, G. Greene, E. Hoover, R. Hohnson, K. Kosola, J. Masabni, M. Parker, R. Perry, G. Reighard, S. Seeley, and M. Warmund. 2005. Performance of ‘Fuji’ and ‘McIntosh’ apple trees after five years as affected by several dwarf rootstocks in the 1999 NC-140 rootstock trial. J Amer Pom Soc 59:202-214.
• Hunt, K.L., M.A. Gold, and M.R. Warmund. 2005. Chinese chestnut cultivar performance in Missouri. Acta Hort 693:145-147.
• Warmund, M.R., and J. Krumme. 2005. A chilling model to estimate rest completion of erect blackberries. HortScience 40 (5):1259-1262.
• Warmund, M.R., K.L. Hunt, and M.A. Gold. 2005. Removal of secondary burs increases average nut weight from primary burs of ‘Armstrong’, ‘Orrin’ and ‘Willamette’ Chinese chestnuts. Acta Hort 693:149-151.
• Rheighard, G.R., R. Andersen, J. Anderson, W. Autio, T. Beckman, T. Baker, R. Belding, G. Brown, P. Byers, W. Cowgill, D. Deyton, E. Durner, A. Erb, D. Ferree, A. Gaus, R. Godin, R. Hayden, P. Hirst, S. Kadir, M. Kaps, H. Larsen, T. Lindstrom, N. Miles, F. Morrison, S. Myers, D. Ouellette, C. Rom, W. Shane, B. Taylor, K. Taylor, C. Walsh, and M. Warmund. 2004. Eight-year performance of 19 peach rootstocks at 20 locations in North America. J Amer Pom Soc 58:174-202.

Recent Publications (Non-referred)

• Hunt, K., M. Gold, W. Reid, and M. Warmund. 2009. Growing Chinese Chestnuts in Missouri. (Revised.) University of Missouri Center for Agroforestry. "Agroforestry in Action." AF1007-2009. 16p.
• Warmund, M.R. 2008. Black walnut harvest: Kernel size versus color. Northern Nut Growers 99th Ann. Rpt. (in press).
• Warmund, M.R. 2008. Primary and secondary flowering and fruiting of Chinese chestnut trees. Northern Nut Growers 99th Ann. Rpt. (in press).
• Warmund, M.R., and M.V. Coggeshall. 2008. Flowering and fruit characteristics of back walnuts: A tool for identifying and selecting cultivars. http://extension.missouri.edu/explore/miscpubs/xm1001.htm
• Warmund, M. 2007. Fertilizer applications affect foliar nitrogen Chinese chestnut growth and yield. Northern Nut Growers 98th Ann. Rpt. (in press).
• Warmund, M.R., and M.V. Coggeshall. 2007. Rest completion in eastern black walnut cultivars. University of Missouri Center for Agroforestry Ann. Rprt.