Black soybean, a treasure house of the medicinal properties; can it be used to break the yield and quality barrier? For this, study was conducted by in 2012 on genetic divergence for yield and different yield contributing traits in 48 genotypes of black soybean collected from Uttarakhand hills, using D2 Mahalanobis cluster analysis with correlation between the 13 trait taken and variability studies was done. These genotypes were grouped in 12 clusters. The Cluster I comprised of five genotypes while the Cluster II comprised thirteen genotypes. Cluster III had ?four genotypes, Cluster IV consisted of nineteen genotypes and largest cluster whereas Cluster V, VI, VIII, IX, X, XI and XII were found to be ?monogenotypic each, while Cluster VII had two genotypes. Intra-cluster average D values ranged from 0.00 to 10.004. The inter-cluster average D2-value was maximum between Cluster IX and XI both with one genotype (90.85), followed by average D2-value between Cluster IX and XII with one genotype each (84.10). The divergence pattern shows that some of these genotypes are of real importance for hybridisation and for F1s and for obtaining trangressive segregants. These genotypes definitely having different yield and yield component with quality too, compared to normal soybean.
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