新荳科作物 開發에 關한 硏究 第2報 동부(Cowpea)의 收量에 關與하는 量的形質에 對한 遺傳分析

Genetic Studies on New Pulse Crops for Breeding II. Correlations and Path-coefficient Analysis on Some Characters of Cowpea (Vigna sinensis)

Highly positive correlations were obtained between days from flowering to maturity and days to maturity, between length of pod stalk and pod length, between pod length and grain numbers per pod, between grain numbers per plant and days to maturity, length of pod stalk, pod length and pod numbers per plant, etc. Highly positive correlations were also shown between 100 grain weight and days to maturity, and between. 100 .grain weight and length of poi stalk, but negative correlations were shown between 100 grain weight and pod length, grain numbers per pod, and grain numbers per plant. Seed yield was correlated with pod numbers per pants and grain numbers per plant, etc. It was also recognized that pod numbers per plant, 100 grain weight and grain numbers per plant have influenced directly upon the yield of cowpeas, and pod numbers per plant, 100 grain weight, pod length and days to maturity have influenced indirectly upon the yield. As a result, it can be concluded that pod numbers per plant, grain numbers per plant, 100 grain weight, grain numbers per pod, days to maturity and pod length are important characters in breeding of desirable cowpeas.