The Image Gallery contains photographs that show normal and abnormal aspects of corn growth and development. The photographs can act as a diagnostic tool during the growing season.

Photographs within this web site may only be used for educational purposes and must remain as originally displayed (with copyright and ISU logo). Please contact Lori (

Corn seedling struggles to emerge through a thick crust	Emerged and emerging seedlings in a field with corn residue and soil crusting.	Seedling 'leafed out' underground due to restrictions at the soil surface (crusting).
Tattered corn seedling from rain and wind.	1-leaf differential between the two plants.	Corn leaves not unfurling due to cold temperatures
Seedlings do not align in the row, due to their movement towards openings in a hardened soil crust	Corn seedling leafs out under the soil surface, in an unsuccessful attempt to emerge. Such seedlings grow 1-2" horizontally in an attempt to reach the surface.	Corn seedling leafs out under the soil surface, in an unsuccessful attempt to emerge. Such seedlings grow 1-2" horizontally in an attempt to reach the surface.
Corn seedling emerges through an opening in the hardened top crust	Corn seedling emerges through an opening in the hardened top crust	Corn seedling trapped underground due to a thick soil crust. The soil has been moved in the picture, displaying the twisted leaves.
Corn seedling struggles to emerge through a thick crust
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