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A study was conducted to evaluate the genetic variability parameters, correlation and path coefficient analysis for eight yield related traits in segregating F 2 population of an aerobic restorer AR 9-18 × YPK 198 (Donor for yield enhancing genes Gn1a and OsSPL14) at ICAR-IIRR, Hyderabad during the kharif, 2019. The results indicated that, productive tiller number, grain number per panicle and plant yield showed high PCV and GCV. Height of plant, productive tiller number, grain number per panicle and plant yield exhibited a high heritability and also high genetic advance as per cent of mean which indicates simple selection would be effective for enhancement of these traits. Correlation studies indicated that plant yield was associated significantly positive with height of plant, productive tiller number, length of panicle and grain number per panicle. High positive direct effect on plant yield was recorded by productive tiller number, grain number per panicle and height of plant.

The experiment was conducted under rainfed condition at Agricultural Research Station, Madhira during early rabi 2016 using 35 blackgram germplasm lines along with four checks. Estimation of variation, phenotypic and genotypic correlations along with path analysis was calculated for the material under study. Days to maturity and plant height had positive significant correlation with number of clusters per plant, number of pods per plant, 100 seed weight, seed yield per plant and seed yield (kg/ha). Number of clusters per plant and number of pods per plant had positive significant correlation with other yield related traits. Path analysis revealed that number of pods per plant, 100 seed weight and seed yield per plant had positive direct effects coupled with positive significant correlation with seed yield (kg/ha). The above variables explain only very less percent of variability in seed yield per plant and hence some other factors which have not been considered here need to be included in this analysis to account fully for variation in seed yield per plant.

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