Vol. 10, Issue 7 (2021)

Author(s):
Tejasvi Singh, Krishna Pratap Singh, Shiv Prakash Srivastava, Vishal Singh and Vinod Singh

Abstract:
Ninety six wheat genotypes were evaluated for genetic variability, heritability and genetic advance under timely and late sown conditions at Main Experimental Station of Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya, U.P. (India). The genotypes were grown in randomized complete block design and data were collected on twelve characters. Analysis of the observed data showed that the mean squares due to treatments for all the traits in both the environment were highly significant. In general, the magnitude of phenotypic coefficient of variation (PCV) was higher than genotypic coefficient of variation (GCV) for all the traits in both conditions i.e. E₁ and E₂. The high estimates of phenotypic coefficient of variation (>15%) were recorded for flag leaf area, tillers/ plant, biological yield / plant, grain yield/ plant exhibited moderate estimates (5-15%) of PCV in both environment except days to 50% flowering and days to maturity in E₁ and E₂. The high estimates of genotypic coefficient of variation (>15%) were recorded for flag leaf area, tillers/ plant, biological yield/ plant, grain yield/ plant in both environment and test weight and chlorophyll content in E₁. The high estimate of genetic advance in per cent of mean was observed for flag leaf area, plant height, tillers/plant, peduncle length, biological yield/plant, grain yield per plant and chlorophyll content in both environments and harvest index and test weight in E₂. This study suggests that the presence of adequate genetic variability, heritability and genetic advance for these traits under timely and late sown condition is suitable for breeding programs and crop improvement.