Effect of structural ideotypes on yield attributes, seed yield and their inheritance in Yellow Sarson (Brassica rapa L

Abstract

The experiments were conducted in three replications for two consecutive years at Instructional Farm Jaguli, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, West Bengal. The different plant ideotypes (Waxy petalous, waxy apetalous, nonwaxy petalous and nonwaxy apetalous) of Brassica rapa var Yellow Sarson were studied during the investigation. Four ideotypic groups showed significant variation for most of the traits in both the years. Waxy apetalous group recorded highest mean values for most of the traits including seed yield per plant in two consecutive years whereas Nonwaxy petalous groups recorded lower seed yield, 1000 seed weight and plant height. In waxy apetalous group, seed yield per plant showed significantly positive correlations with plant height, number of primary branches, number of siliquae per plant, number of seeds per siliqua and 1000 seed weight while in waxy petalous group, seed yield per plant showed significantly positive correlations with number of primary branches, number of seeds per siliqua, and 1000 seed weight. In nonwaxy apetalous group, seed yield per plant showed positive correlations with number of primary branches and number of siliquae per plant. In nonwaxy petalous group, seed yield per plant showed significantly positive correlation with number of primary branches, number of seeds per siliqua and hundred seed weight