Iowa weather conditions this spring resulted in wide ranges in corn plant color - from green to yellow-green to purple and some with stripes. The color variability in most of our fields is not a cause for alarm as the plants simply reflect the 2009 environment to date. Above- and below-ground growth is slowed with low temperatures, despite the plentiful moisture and sunshine we have had. A few days of sun and warmer temperatures will change plant colors quickly.
Iowa State University
Elmore, Roger W. and Abendroth, Lori, "Early Signs of Corn Stress" (2009). Integrated Crop Management News. 639.
The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.