The Utility of Covariance of Combining Ability in Plant Breeding

Arunachalam, V. (1976) The Utility of Covariance of Combining Ability in Plant Breeding. TAG Theoretical and Applied Genetics, 47 (6). pp. 303-306.

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Abstract

The definition of covariances of half- and full sibs, and hence that of variances of general and specific combining ability with regard to a quantitative character, is extended to take into account the respective covariances between a pair of characters. The interpretation of the dispersion and correlation matrices of general and specific combining ability is discussed by considering a set of single, three- and four-way crosses, made using diallel and line × tester mating systems in Pennisetum typhoides. The general implications of the concept of covariance of combining ability in plant breeding are discussed.

Item Type: Article
Author Affiliation: Division of Genetics, Indian Agricultural Research Institute, New Delhi (India).
Subjects: Crop Improvement
Divisions: General
Depositing User: Library ICRISAT-InfoSAT
Date Deposited: 12 Mar 2012 05:26
Last Modified: 12 Mar 2012 05:26
Official URL: http://dx.doi.org/10.1007/BF00281936
URI: http://eprints.icrisat.ac.in/id/eprint/3767

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