Vol. 11, Issue 4 (2022)

Author(s):
Vipin Kumar and Rudra Pratap Singh

Abstract:
A field study was carried out under irrigated conditions during Rabi 2018-20 to study the genetic variability, heritability and expected genetic advance for eleven traits in 20 advance breeding lines in bread wheat. The genotypes exhibited wide range of variation for all the traits except for days to maturity, 1000-seed weight, Biological yield per plant indicating the presence of enough genetic variability in the study material. Phenotypic coefficients of variation were higher than the genotypic ones, for all the characters. High phenotypic and genotypic coefficient of variation was observed for effective tillers per plant and grin yield per plant. Days to maturity has lowest phenotypic and genotypic coefficient of variation. Peduncle length exhibited high heritability coupled with high genetic advance reveled that character is governed by additive gene action and selection may be effective for improvement of this character. Traits like plant height, effective tillers per plant, ear length, spike weight, grains per spike, 1000-seed weight, biological yield per plant, and harvest index are those character which have high x medium or medium x high heritability and genetic advance, respectively, indicates that these character can also be improved through selection.