Agricultural Science Digest
Year : 2006, Volume : 26, Issue : 4
First page : ( 269) Last page : ( 272)
Print ISSN : 0253-150X.

Genetic divergence for important quantitative traits in indian mustard {Brassica juncea (L.) Czern and Coss}*

Vaishnava Archana, Sachan J.N., Tewari S.K.

G.B. Pant University of Agriculture and Technology, Pantnagar (Uttaranchal)-263 145, India.

*Part of M.Sc. (Ag.) thesis of senior author submitted to the G.B. Pant University of Agriculture and Technology, Pantnagar-263 145, India.

Abstract

Genetic Divergence, assessed in sixty genotype of Indian mustard using D² statistic for fifteen developmental characters, showed grouping of the genotype into four clusters. Cluster I was the largest, consisting of fifty genotypes. Cluster II showed maximum genetic distance from cluster IV, suggesting wide diversity between them. Siliqua length, seed yield/plant, 1000-seed weight and number of days to maturity was the highest contributors to D² values. Two clusters consisting of six genotypes have been judged as improvement programme on the basis of their intercluster distances and higher cluster mean values for the aforesaid four characters.

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