Genetic divergence using D 2 statistic of 100 rice bean (Vigna umbellata) cultivars
of different ecogeographic origins revealed existence of considerable diversity. The
cultivars were grouped into 15 clusters. The cluster I was the largest containing 40
cultivars followed by cluster II with 14 cultivars. Cluster III, IV and VI had nine
cultivars each, whereas cluster V had only five cultivars. The diversity among the
cultivars measured by intercluster distance, was adequate for improvement of rice
bean by hybridization and selection. The cultivars included in the diverse clusters
can be used as promising parents for hybridization programme for obtaining high
heterotic response and thus better segregants in rice bean.
Keywords: Rice bean, Vigna umbellata, genetic diversity.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
GYANENDRA SINGH, S. P. SINGH AND B. S. CHAUDHARY info_circle