Stability analysis: where do we stand?

Lin, C.S. and Binns, M.R. and Lefkovitch, L.P. (1986) Stability analysis: where do we stand? Crop Science, 26 (5). pp. 894-900.

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Abstract

The interrelationships of 9 stability statistics and 9 similarity measures are investigated. The stability statistics are divided into 4 groups depending on whether they are based on deviations from the average genotypic response or on genotype X environment interactions, and whether they incorporate a regression model involving an environmental index. These groups are related to 3 concepts of stability involving (1) small among-environment variance, (2) a response to environments parallel to the mean response and (3) small residual mean square from regression on the environmental index. It is considered that these concepts represent different aspects of stability and do not always provide a complete picture of the response. In the alternative approach of cluster analysis, the similarity measures define complete similarity as (1) equality of a genotype's response across sites, (2) equality of all differences within sites and (3) equality of all ratios within sites. This nonparametric approach is considered to have the advantage over conventional stability analysis, in that it allows a cultivar's response characteristics to be assessed qualitatively, without the need for a mathematical characterization

Item Type: Article
Additional Information: SNNigam Collection
Uncontrolled Keywords: Genotype X environment interaction, Cluster analysis, Cultivar assessment, Stability parameter
Author Affiliation: Engineering & Statistical Res. Cent., Agriculture Canada, Ottawa K1A 0C6, Canada
Subjects: Statistics and Experimentation
Divisions: General
Depositing User: Mr B Krishnamurthy
Date Deposited: 25 Apr 2013 05:59
Last Modified: 25 Apr 2013 05:59
Official URL: http://dx.doi.org/10.2135/cropsci1986.0011183X0026...
URI: http://eprints.icrisat.ac.in/id/eprint/10342

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