Genetic parameters and characters association in hyacinth bean (Lablab purpureus L. sweet)
1988
Rahman, M.M. | Alam, M.F. | Kabir, K.M. | Quasem, M.A.
Seven diverse strains of hyacinth been were evaluated. Wide genetic variabilities were observed among the strains for the characters studied except days to pod initiation to harvestable maturity, number of pods/inflorescence, and number of seeds/pod. High heritability associated with high genetic gain was observed for days to flowering, pod length, pod breadth, individual pod weight, 100-seed weight, and green pod yield/plant; while low heritability associated with low genetic gain was obtained for days to pod initiation to harvestable maturity, number of pods/inflorescence, number of seeds/pod, and dry matter percentage. Green pod yield/plant was positively correlated with pod breadth, individual pod weight, and 100-seed weight. The path-coefficient analysis revealed very complicated pattern of character associations. Hundred-seed weight had a high direct effect on green pod yield, both at the phenotypic and genotypic levels. Pod breadth, pod length, and individual pod weight had a negative direct effect on yield but a high indirect effect via 100-seed weight. The results indicate a strong association among these traits.
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