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ASSOCIATION OF SEED YIELD AND SOME IMPORTANT MORPHOLOGICAL TRAITS IN MUNGBEAN (VIGNA RADIATA L.)

IQBAL SAEED, GUL SANAT SHAH KHATTAK^* AND ROSHAN ZAMIR

Abstract: Forty-three mungbean genotypes/accessions were studied for association of seed yield per plant with some important morphological traits i.e., lower node of the pod bearing peduncle, nodes on main stem, average internodal length, pod bearing branches per plant, pod clusters per plant, pod clusters on main stem and pod clusters on branches. Seed yield per plant showed a positive and significant association with pod bearing branches per plant, pod clusters per plant and pod clusters on branches. The pod bearing branches per plant and pod clusters on branches had a negligible and negative direct effect on total correlation respectively, but their indirect contribution through pod clusters per plant towards total correlation was positive and high. The high direct effect and total correlation of pod clusters per plant confirmed its important role in selection for high yielding genotypes. The total variability calculated through multiple correlation in the population for yield improvement accounted for by pod bearing branches per plant, pod clusters per plant and pod clusters on branches was 0.698% compared to 0.793% accounted for by all the traits. The pod clusters per plant showed a significant partial regression coefficient with the seed yield per plant. High heritability was observed for seed yield per plant, node of the first peduncle, pod clusters on branches and pod clusters per plant. The present results revealed that the greater number of pod clusters per plant could be used relatively better selection criterion.

Nuclear Institute for Food and Agriculture (NIFA), Tarnab, Peshawar, Pakistan.