Variability Analysis for Yield and is Component of Indian Mustard [Brassica juncea(L.)Czern and Coss.]

The experimental materials comprised of 79 treatments (15 lines, 4 testers, 60 F₁) of Indian mustard. Were grown at Genetics and Plant Breeding research form, Narendra Deva University of Agriculture and Technology, Narendra Nagar, Faizabad (U.P.) under two environment timely shown and late shown during rabi 2012–13 to study genetic variability of yield and its component traits. Analysis of variance due to treatments were highly significant for all the characters studied viz., days to 50 per cent flowering, days to maturity, plant height, days to 50 percent flowering, primary branches per plant, secondary branches per plan, length of main raceme, Noof siliqua on mainraceme, seeds per siliquae, 1000-seed weight, seed yield per plant, biological yield per plant, harvest-index, oil content. The study on phenotypic coefficient of variation (PCV) high estimates (>20%) was recorded for number of secondary branches per plant, biological yield, seed yield per plant, 1000 seeds weight, Days to 50 per cent flowering, harvest index and number of siliquae on main raceme in E1. biological yield, number of secondary branches per plant, seed yield per plant, length of main raceme, harvest index and number of primary branches per plant in E2. Length of main raceme, number of primary branches per plant, plant height in E1. Plant height, number of seeds per siliqua, number of siliquae on main raceme in E2 showed moderate estimates of genetic advance in per cent of mean (10–20%). Low genetic advance in per cent of mean (<10%) was recorded for number of seeds per siliqua, days to maturity, oil content, in E1 days to 50 per cent flowering, days to maturity and oil content in E2. High genetic advance in per cent of mean (>20%) was recorded for number of secondary branches per plant, biological yield, seed yield per plant, 1000 seeds weight, days to 50 per cent flowering, harvest index and number of siliquae on main raceme in E1. Biological yield, number of secondary branches per plant, seed yield per plant, length of main raceme, harvest index and number of primary branches per plant in E2. Length of main raceme, number of primary branches per plant, plant height in E1. Plant height, number of seeds per siliqua, number of siliquae on main raceme in E2 showed moderate estimates of genetic advance inper cent of mean (10–20%). Low genetic advance in per cent of mean (<10%) was recorded for number of seeds per siliqua, days to maturity, oil content, in E1 days to 50 per cent flowering, days to maturity and oil content (2.51%) in E2