Vol. 11, Issue 2 (2022)

Author(s):
Satish Kumar Singh, Mainak Barman and Bhairav Nath Prasad

Abstract:
The present investigation was carried out in Randomized Block Design with three replications during the Rabi season of 2020-21 at the Wheat Breeding section fields of Dr. Rajendra Prasad Central Agricultural University, Pusa, Samastipur, Bihar, India taking 24 hexaploid bread wheat (Triticum aestivum L.) genotypes to identify genetically divergent genotypes of Bread Wheat for donors with desired features in hybridization programme for grain yield and other yield-related attributes. The genotypes were grouped into six different clusters. Cluster I included the highest number of genotypes. Cluster VI had the utmost mean value for the majority of the characters. Genotype RAUW-183 can serve as a donor for dwarfness. Genotypes RAUW-199, DBW-17, RAUW-210, RAUW-205, RAUW-155, and RAUW-159 were recorded genetically diverse, having the highest intra-cluster distance. The finding of the highest inter-cluster distance indicates that we can exploit genotypes RAUW-6, RAUW-4, RAUW-7, PBW-656 and RAUW-199, DBW-17, RAUW-210, RAUW-205, RAUW-155, RAUW-159 under inter-varietal hybridization programmes. Days to 50% flowering was revealed to have the most decisive influence in manifesting genetic divergence, followed by chlorophyll content, 1000- grain weight, number of grains/ spike, canopy temperature, and the total number of tillers/ plant.