About Us | Help Videos | Contact Us | Subscriptions
 

Crop Science Abstract -

Sensitivity of Lima Bean (Phaseolus limensis Macf.) Yield to 60Co Gamma Radiation Given at Three Reproductive Stages1

 

This article in CS

  1. Vol. 11 No. 3, p. 436-437
     
    Received: Nov 19, 1970


 View
 Download
 Alerts
 Permissions
Request Permissions
 Share

doi:10.2135/cropsci1971.0011183X001100030039x
  1. P. J. Bottino and
  2. A. H. Sparrow2

Abstract

Abstract

Potted plants of lima beans (Phaseolus limensis Macf. ‘Fordhook 242’) were given a series of 16-hour constant rate exposures to 60Co gamma radiation. The plants were at one of three stages of reproductive development: 1) buds in early pollen development; 2) flowers in anthesis or young pods after fertilization; and 3) large pods containing small partially developed seeds. The decreasing order of sensitivity measured as seed yield was buds, floweis or young pods, large pods. The 50% yield reduction exposures were 0.42 ± 0.43 kR for buds, 1.47 ± 0.47 kR for flowers and young pods, and 6.34 ± 0.02 kR for large pods, indicating about a 15-fold difference between the most sensitive and most resistant stage.

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

Copyright © .