Evaluation of Gamma Rays Induced Genetic Variability and Divergence in M3 Generation of Mungbean

Genetic variability and divergence for ten economically important traits in 51 genotypes (50 mutant lines of mungbean variety K 851+ one control) in M3 generation were studied. Number of pods/plant for high GCV was recorded. While number of primary branches/plant and number of pods/plant showed high PCV. All the traits showed high heritability, whereas, plant height, number of primary branches/plant, number of clusters/plant, number of pods/plant and seed yield/plant showed high genetic advance. On the basis of D2 values, a total of five cluster were obtained, indicating that induced mutations are effective in creating genetic divergence. Maximum number of mutant lines were included in cluster I, cluster II and cluster III whereas only control was present in cluster IV. The maximum inter-cluster distance was recorded for cluster IV. Cluster V, Cluster I, cluster II and cluster IV were recorded for high plant height and maximum number of seeds/pod, seed index, pod length and number of clusters/plant. The results from the present experiment concluded that MML-26 could be superior mutant line with high number of clusters per plant, number of pods per plant, seed index and seed yield per plant.