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This article in CS

  1. Vol. 7 No. 6, p. 590-592
     
    Received: Feb 4, 1967
    Published: Nov, 1967


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doi:10.2135/cropsci1967.0011183X000700060011x

Phenotypic Stability in Soybean Populations1

  1. R. R. Smith,
  2. D. E. Byth,
  3. B. E. Caldwell and
  4. C. R. Weber2

Abstract

Abstract

Phenotypic stability of various soybean (Glycine max (L.) Merrill) genotypes to a series of environments investigated by computing, for each genotype, a linear regression of yield onto the mean of all genotypes for each environment. Genotypes expressing above average stability were influenced less by changing environmental conditions. Low deviations from regression tended to be associated with regression coefficients below 1.0.

A positive association was observed between mean homogeneous daughter line and heterogeneous maternal line performance. However, heterogeneous, homozygous lines responded less radically to environmental changes than corresponding homogeneous, homozygous lines.

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