Vol. 11, Issue 3 (2022)

Author(s):
Ajay Jaiswal, Sharad Tiwari, RS Shukla, Vinod Kumar, Suneeta Pandey, Manoranjan Biswal and Sanjay Kumar Singh

Abstract:
An experiment was conducted to determine the genetic variability, heritability, genetic advance and character association for yield and its component traits in 68 hybrid wheat including 10 cms lines, 5 restorer lines and 3 best checks under timely and late sown conditions. Significant genotypic differences were observed for all the traits in both the environments. The high magnitude of phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) was recorded for number of grains per ear, harvest index, biological yield per plant, thousand grain weight, spike weight, number of spikes per plant and number of effective tillers per plant under timely and late sown condition. The traits grain yield per plant, number spikelets per spike, number of grains per ear, harvest index, biological yield per plant, thousand grain weight, spike weight, number of spikes per plant, number of effective tillers per plant and spike length reported as high heritable coupled with high genetic advance in both the environments. Grain yield showed positive and significant correlation with grains per ear, harvest index, biological yield per plant, thousand grain weight, spike weight, number of spikes per plant, number of spiklets per spike and number of effective tillers per plant but negative correlation and significant was recorded for days to 50% flowering, days to maturity and plant height under timely and late sown condition. Harvest index had highest positive direct effect on seed yield followed by biological yield per plant under both the environments, indicating that these were main contributors for enhancing the grain yield per plant.