About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in AJ

  1. Vol. 75 No. 4, p. 705-707
     
    Received: Nov 8, 1982


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2134/agronj1983.00021962007500040031x

Grain Production of Winter Wheat after Spring Freeze Injury1

  1. Gary M. Paulsen and
  2. Elmer G. Heyne2

Abstract

Abstract

The most extensive spring freeze reported on winter wheat (Trificum aestivum L.) in the Great Plains occurred in Kansas and adjoining states in 1981. We related magnitude of injury to prevailing temperatures and compared consequences of freeze injury in 1981 and previous years. The injury threshold nearly paralleled the O°C isotherm during the freeze. Production losses ranged up to 85% in individual counties and averaged 62% in the affected area and 31% statewide in Kansas. Low grain production in 1981 contrasted with record production in states reporting freeze injury to winter wheat during previous years. Modeling showed record winter wheat production after spring freezes other years was associated with generally favorable conditions throughout the growing season, early development of wheat during the spring, and extraordinarily favorable conditions after the freeze. Spring freeze injury might affect winter wheat production locally, but production over large areas was frequently favored by conditions associated with localized freeze injury.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © .