My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in CS

  1. Vol. 22 No. 1, p. 151-152
     
    Received: Feb 13, 1981
    Published: Jan, 1982


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2135/cropsci1982.0011183X002200010035x

Effective Population Size for the Soybean Improvement Program in Maturity Groups 00 to IV1

  1. S. K. St. Martin2

Abstract

Abstract

The past 50 years of soybean (Glycine max L. Merr.) cultivar development in the midwestern United States and Canada can be considered a program of recurrent selection now in its third or fourth cycle. The effective number (N) of lines recombined in each cycle was estimated by determining coefficients of parentage of 27 cultivars released between 1976 and 1980. The relatively low N value (11 to 15) indicated that soybean breeders have made progress at the expense of the loss of a substantial portion of the genetic variation originally available.

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

Copyright © .