Heritability and genetic advance in Indian mustard [Brassica juncea (L.) Czern & Coss.)]

A field experiment was conducted during rabi 2004–05 at Kanpur to study of direct selection parameters in Indian mustard [Brassica juncea (L.) Czern & Coss.)]. Heritability and genetic advance were studied in 45 F₁s and 45 F₂s derived from ten promising parents of India nmustard. Thee stimates revealed high heritability for oil content, days to maturity, number of primary branches plant⁻¹, days to 50% flowering and incidence of white rust inboth the generations. Moderate heritability estimates were recorded for number of secondary branches plant⁻¹, seed yield plant⁻¹ and number of siliquae plant¹in both the generations and length of mainraceme and number of seeds siliqua⁻¹ only in F₂ generation. Low estimates of heritability were observed for number of seeds siliqua⁻¹ only in F₁ and for plant height only in F₂ generations. Moderate geneticadvance was observedfor numberof primary branches plant⁻¹ and number of secondary branches plant⁻¹ in both the generations. Low genetic advance wasobserved for number of siliquae plant⁻¹, seed yield plant⁻¹, length of main raceme, days to 50% flowering, plant height, oil content, days to maturity, 1000-seed weight and number of seeds siliqua⁻¹ in both the generations and number of siliquae plant⁻¹ only in F₂ generation.