Combining ability and factor analysis in F2 diallel crosses of rapeseed varieties

摘要: Fifteen F₂ progenies derived from a 6×6 half diallel crosses along with their parents of rapeseed (Brassica napus L.) varieties were evaluated for pods per main axis, plant, length pod, seeds 1000-seed weight, grain yield and oil content. The Analysis variance based on Griffing's method two, mixed-B model revealed significant mean squares general combining ability (GCA), specific (SCA) indicating that both additive non-additive genetic effects involved in controlling these traits. High narrow-sense heritability estimates degree dominance less than one observed pod weight indicated the prime importance two Narrow-sense content estimated 0.22, 0.14, 0.30, 0.15 0.08, respectively concluded role Among components, axis plant had positive correlation (0.54* 0.60**), so any changing traits would have yield. Based results factor analysis GCA high coefficients loading one, but SCA same direction variation.