Growth and Development

Encyclopedia Article

Photograph of corncobTypically, we evaluate crop health by examining aboveground plant growth and canopy appearance. To do this accurately we must understand how corn progresses through developmental stages. This knowledge allows the best management practices to be implemented that will minimize or eliminate stress.

Extension Newsletter Articles

Corn root development
Number of rows and kernels set early in season
Corn development from R1 to R6

Extension Publications

Corn growth and development (PMR 1009)
Corn staging (CROP 3094A)
Key growth stage (CROP 3094B)
Corn and soybean field guide (see pages 4-9, IPM 1)

Related Websites

Growing Degree Days

Iowa State University Agronomy Extension Corn Production