Assessment of Genetic Diversity in Indian Bean [Lablab purpureus (L.) Sweet]
2015
Chandran, K Ananya | Patel, A. I. | Patel, Himani
An investigation was undertaken to ascertain the extent of genetic diversity present among 90 Indian bean genotypes using D² statistic. Cluster analysis grouped 90 germplasm into sixteen clusters based on the degree of divergence between the genotypes. Clustering pattern revealed non parallelism between genetic diversity and geographical distribution. Maximum intra-cluster distance was observed in cluster IV indicating greater genetic divergence between the genotypes belonging to this cluster. Number of green pods yield per plant, number of green pods per branch, number of green pods per plant, and green pod weight contributed 80.68 per cent to total divergence. Maximum inter-cluster distance was recorded between clusters XV and XVI followed by clusters VII and XV indicating wide genetic diversity and it may be used in Indian bean hybridization programme for improving yield.
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