Genetic diversity studies in groundnut genotypes (Arachis hypogaea L.)
2023
B. Meena Kumari1*, S. Sridevi2, N. Manivannan 2 and V. Ravichandran3
The present study was done to study the extent of diversity among the released and popular varieties of India and advanced cultures in groundnut. D2 analysis for 15 characters resulted in the formation of nine clusters among the 30 genotypes studied. Highest intra-cluster distance was recorded for cluster VI followed by III, V, II and VII. Maximum inter-cluster distance was recorded between clusters VIII and IX followed by between clusters III and IX and between clusters VII and VIII. Based on mean performance, intra and inter-cluster distance, the genotypes of cluster VI (ALR 1 and COG0539) could be used for increasing the shelling per cent, oil content, pod yield / plant and no. of primary branches / plant. The genotypes in cluster III (CO 1, COG0549 and BSR 2) can be used for improving number of mature pods/ plant, hundred kernel weight, leaf area index and cluster VIII (JL 24) for total biomass and kernel yield / plant for trait based improvement programme.
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