Genetic divergence in mulberry (Morus spp.)
2002
Tikader, A. | Roy, B.N.(Central Sericultura | l Research and Training Institute, Berhampore(India))
Genetic divergence among 98 mulberry (morus spp.) genotypes (63 exotic, 35 indigenous) of different eco-geographic origion was assessed using Mahalanobis D2 statistics. The total genotypes were gruoped into seven clusters. Maximum number of genotypes were grouped in cluster III (19), IV (19), II (16), IV (16), VII (13) and V (12), respectively. Cluster I had only three exotic genotypes. All the clustyers having both the exotic and indigenous genotypes except cluster I. The genotypes falling in cluster III had the maximum divergence followed by cluster I and II. The maximum and minimum divergence were revealed between cluster I and VI and between cluster V and VI, respectively. The cluster I and VI showed higher and lower mean values for most of the characters. So, mulbery crop improvement programme may be tried with the genotypes of divergent clusters for better heterotic effects.
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