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Determining Growth Stages in Corn

May 26, 2021

Video: Determining Growth Stages in Corn

In this video, Pioneer Field Agronomist Ron Joiner walks viewers through staging corn growth as growers look to make post-planting herbicide decisions. For smaller plants, each leaf stage is defined according to the uppermost leaf whose leaf collar is visible. The first part of the collar that is visible is the back, which appears as a discolored line between the leaf blade and leaf sheath.