Indian Journal of Genetics and Plant Breeding (The)
Year : 1981, Volume : 41, Issue : 2
First page : ( 237) Last page : ( 245)
Print ISSN : 0019-5200. Online ISSN : 0975-6906.

The Relative Importance of Characters Affecting Genetic Divergence

Singh Daljit

Division of Genetics, Indian Agricultural Research Institute, New Delhi-110 012

Abstract

The method for the identification of the most potent character contributing to divergence used by several workers is faulty. They have mistakenly treated the uncorrelated transformed variables (Yi) as biological characters having one-to-one correspondence with the original characters (Xi). A more rational approach has been given in the present work. It is suggested that the vector derived from the canonical vector corresponding to the largest root of the “between” populations matrix of the uncorrelated transformed variables and the triangular matrix of the transformation involved be used to identify the character contributing the most to the overall divergence. Further confirmation of the results could be made by distributing the components of D² values in the form of a two-way table, obtaining the column totals over all possible values of D² and identifying the character with the column giving the largest total.

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