1Department of Genetics and Plant Breeding, S. V. Agricultural Collage, Tirupati, India
2Department of Soil Science and Agricultural Chemistry, Institute of Frontier Technology, Tirupati, India
3Department of Crop Physiology, S.V. Agricultural College, Tirupati, Chitoor, 517 502, A.P., India
Department of Genetics and Plant Breeding, Sri Venkateshwara Agricultural College, Tirupati-517 502, Chittoor, Andhra Pradesh, India
*Corresponding author's e-mail: rmohammad296@gmail.com
Online published on 17 September, 2018.
Divergence analysis using Mahalanobis's D2 statistics grouped 40 groundnut genotypes into eight clusters. The maximum inter-cluster distance was found between clusters II and VIII (D=183.23) followed by cluster VI and VIII indicating that the genotypes of these groups were highly divergent from each other. Among all the characters, pod yield per plant contributed the maximum to the diversity followed by leaf iron content (ppm) at 60 DAS, seed iron content (ppm) at maturity, seed calcium uptake (Kg ha−1) and seed calcium content (%) at maturity. The genotypes of above clusters revealed a substantial difference in the means for important yield contributing characters and form ideal parents for genetic improvement in groundnut.
Clusters, Genetic divergence, Groundnut, Nutrient uptake
