Genetic variability and correlation studies in greengram (Vigna radiata L. Wilczek)
The present experiment was carried out during Kharif2016 to assess the genetic variability and correlation among yield and yield attributing characters of mungbean. Thirty six mungbeangermplasm were investigated for this study for 10 quantitative characters viz., days to 50% flowering, plant height (cm), number of primary branches per plant, number of clusters per plant, number of pods per cluster, number of pods per plant, pod length (cm), number of seeds per pod, 100 seed weight (g) and seed yield per plant (g). On the basis of genetic variability study all the characters exhibited high heritability coupled with high genetic advance, indicating the preponderance of additive gene action. Selection based on this trait will be fruitful. Phenotypic correlation is higher than the genotypic correlation for all the characters under study. From the correlation studies, seed yield per plant showed positive significant correlation with the traits viz., number of pods per plant, number of clusters per plant and number of pods per cluster. Hence, simultaneous selection for the above traits would be more rewarding to bring improvement in mungbean.
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