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Yield Stability Studies in Soyabeans (Glycine Max)

Published online by Cambridge University Press:  03 October 2008

S. M. Funnah  and
C. Mak
S. M. Funnah
Affiliation:
Department of Genetics and Cellular Biology, University of Malaya, Kuala Lumpur, Malaysia
C. Mak
Affiliation:
Department of Genetics and Cellular Biology, University of Malaya, Kuala Lumpur, Malaysia
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Summary

Regression analysis, stability variance method, and the genotype-grouping technique were used to investigate the relative yield stability of 20 soyabean genotypes, grown in 12 diverse environments in Malaysia in 1978. With the regression analysis, four genotypes were observed to be unstable for grain yield; however, for the remaining 16 genotypes with non-significant regression coefficients, a substantial proportion of the g × e interaction was non-linearly related to the environmental indices. With the second and third methods less than half of the genotypes turned out to be stable for grain yield. Generally, for some genotypes, the stability classification was the same for all three methods.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 4 , October 1980 , pp. 387 - 392
Copyright
Copyright © Cambridge University Press 1980

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