Document Type

Other

Publication Date

9-1-1995

Keywords

calendar days, growing degree days, corn maturity, kernel growth stages

Extension Number

ExEx 8114

Department

Plant Science

Description

Weather in recent years has caused many corn seeding delays or replanting after a killing spring frost. Corn growers often inquire about how long it will take corn to reach maturity from a given growth stage. Iowa research results (Table 1) show how many calendar days or GDDs are needed for a typical hybrid to reach maturity from a given growth stage.

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