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Genetic divergence analysis in indian mustard (brassica juncea (l.)czern & coss) germplasm
(CCSHAU, 2006) Goyat, Binesh; Dhiraj Singh
Two hundred germplasm lines were evaluated for genetic divergence. The experiment was laid in augmented design. The highest intra cluster D2 values was observed for cluster 3, with euclidean distance (4.23). The inter cluster distance have been found to be highest between cluster 1 and 6 euclidean distance (5.546). The cluster mean values were observed maximum in cluster 6 for no. of primary branches per plant, main shoot length, no. of siliqua on main shoot and oil content. Genotypic and phenotypic variances and coefficient of variation revealed substantial genetic diversity in the material. High heritability was observed for no. of seeds per siliqua and main shoot length. Genetic advance as per cent means were high for seed yield, no. of primary branches and no. of secondary branches per plant. Seed yield per plant showed positive significant correlation for no. of primary branches, no. of secondary branches, siliqua on main shoot. No. of secondary branches showed maximum positive direct effect for seed yield. Promising germplasm lines based upon different quantitative characters where identified. The use of such identified lines is advocated for developing superior genotypes/hybrids.