Estimation of correlation and path analysis for yield and yield attributing traits in Blackgram [Vigna mungo (L.) Hepper]

Correlation and path analysis studies were made for yield and its attributing traits in fifty blackgram genotypes. Based on correlation studies, it was observed that the number of branches per plant, number of clusters per plant, number of pods per plant, number of pods per cluster, pod length and number of seeds per pod showed highly significant positive correlation with seed yield per plant at genotypic level and improvement of these characters might contribute to high seed yields in blackgram. Path analysis revealed the highest positive direct effects on seed yield by number of seeds per plant followed by number of pods per plant, number of seeds per pod, pod length, number of branches per plant and 100 seed weight. Therefore these characters must be given priority in selecting for high yielding varieties in blackgram.