Studies on Genetic Divergence in Mungbean (Vigna radiata (L.) Wilczek)

摘要

Hybridization is one of the important tools for crop improvement. Genetic divergence plays a vital role in the choice of parents to be used in hybridization programme. An experiment was conducted to assess the nature and extent of genetic divergence among mungbean genotypes. The grouping of genotypes into four clusters based on D2 values, indicated the presence of wide range of genetic variability. Cluster III was evolved as a largest cluster and comprised seven genotypes and maximum inter-cluster distance was observed between cluster I and IV. Hybridization between clusters I and IV is expected to generate a wide range of variability and will facilitate the isolation of desirable genotypes. Characters, 100-seed weight, plant height and seed yield / plant contributed maximum to genetic divergence and needs due consideration while selecting the parents for hybridization for yield improvement.