Genetic Divergence in Mungbean Under Two Environments

An experiment was conducted with an objective to study genetic diversity available in mungbean germplasm for the identification of genetically diverse and agronomical superior accessions. The mungbean genotypes were distributed into five and six clusters based on Euclidean distances under two environments, respectively. Cluster IV evolved as a major cluster in one environment and III and IV as large cluster in other environment. Distribution of genotypes into different clusters, suggested the presence of substantial genetic divergence among the germplasm. Inter cluster distance was found maximum between clusters I and II during kharif, 2005 and I and VI or I and IV during zaid, 2006. The crosses between parents with maximum genetic divergence are generally the most responsive for genetic improvement in mungbean. Mean performance of different clusters were variable, suggesting wide range of differences between clusters.