Genetic parameter and character association studies in Indian mustard (Brassica juncea L. Czern and Coss)
Genetic parameter and character association studies in Indian mustard (Brassica juncea L. Czern and Coss)


Keywords:
GCV, Genetic advance, Heritability, Indian mustard, PCV, VariabilityAbstract
Character association studies were carried out with 28 genotypes of Indian mustard. Analysis of variance estimates of all the ten characters studied were highly significant. Coefficient of variation for GCV and PCV were found high for the traits no. of secondary branches/plant, days to 50% flowering, 1000-seed weight and seed yield/plant. The character days to 50% flowering showed higher heritability with high genetic advance. Correlation study revealed that seed yield/plant had significant and positive association with plant height (0.48G and 0.32P), main raceme length (0.60G and 0.39P), number of siliquae/plant (0.58G and 0.39P), number of primary branches/plant (0.89G and 0.36P), number of secondary branches/plant (0.45G and 0.32P), number of primary branches/plant and oil content (0.52 G and 0.37P) at genotypic and phenotypic levels.
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References
Al-Jibouri. H A, Miller P A and Robinson H F 1958. Genotype and environmental variances and co-variance in upland cotton cross of inter specific origin. Agronomy Journal, 50: 633-637.
Burton G W 1952. Quantitative Inheritance in Grasses in: Proc. 6th Int. Grassland Congress, 7: 273-283.
Johnson H W, Robinson H.F and Comstock R E 1955. Estimates of genetic and environmental variability in soybean. Agronomy Journal, 47: 314–318.
Thakral N K, Singh H and Singh H 1995. Genetic components of seed yield and oil content under normal and saline environments in Indian mustard. Cruciferae Newsletter, 17: 70-71.