Genetic variability for yield and yield attributing traits in F3 generation of blackgram
The present investigation was carried out in the F3 population of three black gram crosses viz., LBG-787 x LBG-752, TU-94-02 x KU-1006, and TU-94-02 x LBG-752 along with their parents. High PCV and GCV were recorded for plant height, the number of clusters per plant, the number of pods per plant and seed yield per plant in two crosses, LBG-787 x LBG-752 and TU-94-02 x KU-1006 indicating the existence of wide variability for these traits in the progenies of these crosses. High heritability coupled with high genetic advance as per cent of mean were recorded for plant height, the number of clusters per plant, the number of pods per cluster, the number of pods per plant and seed yield per plant in the cross LBG-787 x LBG-752 and for plant height, the number of branches per plant, the number of clusters per plant, the number of pods per cluster, the number of pods per plant and seed yield per plant in the cross TU-94-02 x KU-1006, respectively. This indicates the scope of selection for these traits in a particular population since there is a wide range of variation and additive gene action for the traits.
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