Studies on genetic variability, character association and path coefficient for seed yield and its contributing traits in soybean (Glycine max(L.) Merrill)

摘要: Twenty elite breeding lines of soybean were studied for genetic variability, correlation and path coefficient eighteen economically important traits. Six genotypes viz. PK-1272, PK-1274, PK-1281, PK-1283, PK-1284 PK-1286 found significantly superior in yield other major contributing characters. In general, PCV higher than the GCV ECV values all characters, suggesting that these characters relatively much influenced by environment. The broad sense heritability estimates high pods/plant, followed plant height, primary branches/plant seed yield/plant whereas, pods/plant height revealed advance. Seed showed significant positive correlations with total dry matter weight/plant, branches/plant, efficiency, 100-seed weight harvest index. Protein oil contents negative association each other. Path analysis indicated role efficiency both directly indirectly yield. Therefore, main emphasis should be given on traits during phenotypic selection developing yielding soybean.