Characterization of Mutant Lines of Mungbean [Vigna radiata (L) Wilczek]

Mutation breeding is relatively quicker method for improvement of crops. The experiment comprised 32 (31 mutant lines + one parent line) lines of mungbean cv. Pusa 9072 in M8 generation, which were isolated through appropriate selection procedure after mutagenic treatment. The analysis of variance showed significant differences for all eight morphological characters under study. The mutant AAIMM-10 recorded to be the best performer for seed yield per plant, while the mutant AAIMM-24 was taken 58 days to maturity. The higher magnitude of genotypic coefficient of variation and phenotypic coefficient of variation were recorded for seed yield per plant while moderate estimates for plant height and number of clusters per plant. The characters showed highest heritability for pod length and days to 50 per cent flowering. High genetic advance as per cent of mean was observed for seed yield per plant while moderate estimates for plant height and number of clusters per plant. It is concluded in present study that sufficient variability present in the mutant lines and there is an ample scope for genetic improvement through selection in mungbean.