About Us | Help Videos | Contact Us | Subscriptions
 

Abstract

 

This article in CS

  1. Vol. 19 No. 6, p. 811-814
     
    Received: Dec 20, 1978


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2135/cropsci1979.0011183X001900060016x

Imbibitional Chilling Sensitivity Among Soybean Cultivars1

  1. W. J. Bramlage,
  2. A. C. Leopold and
  3. J. E. Specht2

Abstract

Abstract

Fifteen soybean (Glycine max (L.) Merr.) cultivars were screened for sensitivity of embryos to imbitional chilling injury. All were susceptible to injury, but sensitivity varied greatly. Some showed no injury at 7 C while others were injured at 17 C. Embryos of earlier maturing cultivars tended to be more susceptible to imbibitional chilling injury than those of later maturing cultivars. This relationship of time of maturation to chilling sensitivity was confirmed using near-isogenlc lines of ‘Clark’ soybean, a cultivar possessing various genes that advanced or delayed maturity. Earlier maturing lines were more sensitive to chilling than later maturing lines. Leakage of solutes during imbibition, measured as OD280, was negatively correlated with germination when near.isogenic strains were compared, but was not closely correlated when different cultivars were compared.

It is proposed that seed maturation occurring later in the growing season, during periods of relatively low temperature, hardens seeds against chilling injury.

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

Copyright © .