Genetic variability studies for yield and yield attributing traits in Gobhi Sarson (Brassica napus L.) genotypes under temperate ecology of Kashmir

The present study was carried out with fifty genotypes of gobhi sarson (Brassica napus L.) to estimate the genetic variability, heritability, genetic advance and correlation analysis in the set of 50 B. napus lines grown during Rabi 2019- 2020. The analysis of variance revealed that all the characters exhibited a large amount of variability. For siliqua no. per plant, the high amount of PCV and GCV along with high values of broad sense heritability and genetic advance was found followed by number of seeds per siliqua and number of siliqua on main raceme length. The association analysis showed that the plant height, siliqua number on main raceme length, number of seeds per siliqua, no. of siliqua plant-1 had significant positive correlation with seed yield plot-1. The difference between the values of GCV and PCV were observed low for all the traits. The genetic variability present in the set of breeding material shall not only provide a basis for selection but also provided some valuable information regarding selection of diverse parents to be used in the hybridization programme.