Vol. 11, Issue 7 (2022)

Author(s):
Tarkeshwar, Shiva Nath, SC Vimal, Ravi Prakash Chaudhary, Govind Mishra, Anand Mohan Chaudhary and Vikash Kumar Singh

Abstract:
The present investigation was carried out at Students Instructional Farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya consisting of 60 Indian mustard genotypes including three checks sown in Augmented Block Design during rabi 2021-2022 to estimate the variability and heritability for various traits. All genotypes differed significantly among themselves for all 12 characters studied. The variance due to checks were highly significant for all the traits. The plant height (cm) (139.25-208.52) recorded the highest range of variation followed by days to maturity (121-141), while it was minimum in case of 1000 seed weight (g) (2.58-6.56). The highest estimates (>20%) of PCV and GCV were not recorded for any traits, whereas, moderate estimates (10-20%) of PCV and GCV was recorded for 1000-seeds weight (12.13 and 12.11 respectively). The heritability ranged from 27.54% (biological yield per plant) to 99.66% (1000-seeds weight). Generally higher estimates of heritability in broad sense (>75%) were recorded for 1000-seeds weight (99.66%) followed by plant height (cm) (98.44%). The Genetic advance in percent of mean ranged from 3.04% (3.04) to 24.91% (1000-seeds weight). Test weight (1000-seeds weight) showed high estimates (>20%) of genetic advance in percent of mean i.e., 24.91.