A Path-coefficient analysis and genetic correlation between important traits in pea (pisum sativum L.)

Twenty cultivars of pea(Pisum sativum L.) were grown in the field of Kangwon National University. They were evaluated for maturity and other characters. The relationships between values measured were analysed by the method of path coefficient. Genotypic correlation coefficients were larger than phenotypic ones. The first flowering node number, flowering time and plant height were highly correlated with maturing time. Genotypic correlation between maturing date and the first flower node number was highly significant, 0.5893 which was made up largely of a direct effect of 1.5844. A highly significant correlation was likewise obtained for the comparison between maturing date and flowering time, being influenced mainly by the indirect effect via first flower node number. The association between earliness and plant height was moderately significant.