Mukesh Kumar, Vipin Kumar, J.B. Singh* and Mukesh Kumar, Sardar Vallabh Bhai Patel University of Agriculture & Technology, Meerut-250110, K.V.K., Nagina, Bijnore
Abstract: Twenty promising breeding lines of soybean were evaluated for correlation and path coefficient for eighteen economically important attributes. The mean squares were significantly for all the characters. Based on mean performance, six genotypes viz. ISS-522, ISS-524, ISS-631, ISS-715, ISS-734 and ISS-889 were significantly superior in yield and other major yield contributing characters. Seed yield showed significant positive correlations with total dry matter weight and harvest index. And, these characters were also positively associated with each other. Protein and oil contents showed significant and negative association with each other. While, 100-seed weight had positive association with oil content but negative with protein content, path coefficient analysis indicating major role of pods/plant, total dry matter, primary branches/plant, seed yield efficiency and 100-seed weight both directly and indirectly influenced seed yield. Therefore, main emphasis should be given on these traits during phenotypic selection for the developing high yielding genotypes of soybean.
Keywords: Correlation, Path analysis, Direct & indirect effect.