Vol. 11, Issue 6 (2022)

Author(s):
Shaik N Ameer Sohail and Dr. Ranjeet Singh Sran

Abstract:
The present investigation entitled “Genetic variability and association studies for yield and its attributes in wheat” was carried out to assess genetic variability, correlation and path analysis for grain yield and its attributes having 26 genotypes of bread wheat at Agricultural research field, School of Agriculture, Lovely Professional University during rabi 2020-21 in randomized block design (RBD) with three replications. Analysis of variance revealed the presence of significant variation among genotypes. On the basis of mean performance, thirteen genotypes viz., K 68, HP 1761, FASILABAD 2008, PBW 502, VL 829, WH 1105, JWS 17, SUJATA, SKW 196, WH 147, HD 3086, HD 2967, HW 2004, MP 3020 H1 8627, HD 3059, K 1006, PBW 343 and RUJ 4037 were found significantly superior than the best check DBW 222. Phenotypic coefficient of variation was higher than the genotypic coefficient variation which indicated the influence of environmental factors. Moderate genotypic coefficient was observed for seed yield per plant, harvest index, 1000 seed weight, biological yield per plant, ear weight, number of grains per spike. High heritability coupled with high genetic advance as percent mean were observed for seed yield per plant, 1000 seed weight, harvest index and biological yield per plant. Correlation coefficient analysis revealed that the traits viz., plant height, peduncle length, number of tillers per plant, number of spikelets per spike, number of grains per spike, 1000 seed weight, biological yield per plant had positive significant correlation with seed yield per plant. Path analysis revealed that plant height, days to 50% flowering, number of grains per spike, ear weight, 1000 seed weight, biological yield per plant and harvest index had direct effect on seed yield per plant.