Author(s):

Sanghamitra Rout, SA Kerkhi and Archi Gupta

Abstract: Present study carried out with thirty eight genotypes of Indian mustard to examine the genetic variability, heritability and genetic advance of per cent of mean. All the thirty eight genotypes were tested in randomized block design with three replications during rabi 2015-16. Observations were recorded for twelve characters viz; days to 50% flowering, days to maturity, number of primary branches per plant, number of secondary branches per plant, number of siliqua per plant, plant height (cm), number of seeds per siliqua, siliqua length (cm), biological yield per plant (g), harvest index (%), seed yield per plant (g) and 1000-seed weight (g). Analysis of variance revealed substantial amount of variability among the genotypes for all the characters, indicated wide spectrum of variability among the genotypes. PCV and GCV were observed moderate for number of primary branches per plant, number of secondary branches per plant, number of siliqua per plant, number of seed per siliqua, biological weight per plant, harvest index, seed yield per plant and 1000 seed weight. This indicated that, there was least influence of environment in the expression of these traits. High heritability coupled with high genetic advance as per cent of mean were observed for number of primary branches per plant, number of secondary branches per plant, number of siliqua per plant, number of seeds per siliqua, biological yield per plant, harvest index, seed yield per plant and 1000-seed weight. The difference between the values of GCV and PCV were observed low for all the traits. This indicated that the preponderance of additive gene effects for these characters and hence the selection, directly based on these traits may be rewarding.

Pages: 4119-4123  |  1155 Views  518 Downloads

Download (556KB)