Vol. 12, Issue 7 (2023)

Author(s):
Rohit Kumar, SS Rao, Anjali Manhar, Deepak Saran, Vivek Kumar Sandilya, Deepak Gauraha and Sanjay Sharma

Abstract:
The experiment was laid out at Research cum-Instructional Farm, Department of Genetics and Plant Breeding, College of Agriculture, IGKV, Raipur Chhattisgarh, India during kharif 2021-22. The experimental material comprised of five generations each cross of pair parents i.e. P₁, P₂, F₁, F_2, and F₃ of nine different crosses were conducted in Randomized Complete Block Design (RCBD) with three replications during kharif 2022. The highest phenotypic and genotypic variances were obtained for yield/plant, 1100-grain weight, and number of grains/panicles. The GCV ranged from 0.37% (days to maturity) to 51.01% (yield/plant). The small differences between GCV and PCV for days to 50% flowering, panicle length, number of tillers/plant, number of panicles/plant, number of grains/panicle, 100-grain weight, and yield/plant, represented some degree of environmental influence on the phenotypic expression of these characters. High heritability estimate coupled with high genetic advance as percentage of the mean obtained in cross PKVHMT x Vasumati for Yield/plant (98.90, 114.96), in cross IR-64 X TARORI BASMATI for 100 grain weight (97.30, 93.02), in cross PKVHMT x Tarori Basmati for days to 50% percent flowering (94.80, 11.58) in cross PKVHMT x Vasumati for panicle length (89.30, 20.29), in cross PKVHMT x Tarori Basmati for plant height (82.00, 28.47 and in cross IR64 x Tarori Basmati for days to maturity (70.50, 2.97). The character which have high heritability coupled with high genetic advance as percentage of mean along with governed by additive gene action and these types of characters indicates that direct selection could be effectively be made for yield improvement.