ABSTRACT
The study revealed highly significant differences for all the thirteen characters studied, the analysis of variance worked out
for seed yield and its components in Indian mustard indicated that the mean sum of squares due to genotypes were highly
significant for all the characters. Results of phenotypic correlation coefficient revealed that the seed yield/plant (g) had
significant positive correlation with biological yield/plant followed by traits test weight (g), number of secondary branches/
plant and harvest index. Path coefficient analysis of different characters contributing towards seed yield/plant revealed that
days to maturity, test weight, number of primary branches/plant, siliqua length, plant height biological yield/plant and number
of siliqua/plant harvest index had the highest positive direct effect relationship with seed yield/plant followed by days to
50% flowering, number of secondary branches/plant, days to first flowering, number of siliquae/plant and harvest index had
genotypic negative direct effect on seed yield/plant. In present investigation the high heritability was recorded for the characters
seed yield/plant (77.9%), harvest index and biological yield. Genetic advance as percentage of mean was observed high for
the characters number of siliqua/plant (47.638) followed by harvest index, biological yield and test weight. High heritability
estimates in broad sense along with high genetic advance as percent of mean was observed for seed yield/plant, harvest
index, biological yield. The high PCV and GCV were observed for number of siliqua/plant whereas, moderate PCV and GCV
was recorded seed yield/plant, harvest index, biological yield and days to first flowering.
Keywords: Brassica juncea, genetic variability, correlation, path coefficient and heritability