Singh, P. B.SINGH, VIJAYPAL2021-09-282021-09-282021Singh V. And Sing P.B.https://krishikosh.egranth.ac.in/handle/1/5810176400Character Association and Path Analysis in GroundnutThe present investigation entitled “Character Association and Path Analysis in Groundnut (Arachis hypogaea L.)” was conducted during Kharif, 2020. In the experiment thirty diverse genotypes including four checks namely UG-5 (Pratap Raj Mungphali), TG 37A, GG-7, JL-501 of groundnut, were grown at the Instructional Farm, CTAE, MPUAT, Udaipur. This experiment was conducted in RBD with three replications. All Observations recorded for thirteen characters viz., days to 50% flowering, days to maturity, plant height (cm), number of branches per plant, sound mature kernels (%), dry pod yield per plant (g), kernel weight per plant (g), 100-kernel weight (g), shelling percentage (%), biological yield per plant (g), harvest index (%), duration between flowering to pegging and oil content. The data so obtained were subjected to analysis of variance, estimation of different variability parameters, correlation and path analysis for all thirteen characters. Analysis of variance revealed that genotypes were highly significant for all the thirteen characters, indicated the presence of ample genetic variability available in the experimental material under study that can be further exploited for groundnut improvement. Highest GCV was found for number of branches per plant (12.69%), harvest index (12.41%), plant height (12.23%), duration between flowering to pegging (11.97%), kernel weight per plant (11.82%) and dry pod yield per plant (10.12%) whereas lowest GCV was observed in the character days to maturity (3.27%). Highest PCV was found for harvest index (15.61%), dry pod yield per plant (13.78%), kernel weight per plant (13.78%), number of branches per plant (13.47%), plant height (13.08%), duration between flowering to pegging (13.01%) and biological yield per plant (11.17%) whereas lowest PCV was observed in days to maturity (3.51%). The high estimates of heritability values noticed in characters like 100-kernel weight (92.00%), oil content (91.53%), number of branches per plant (88.78%). High GCV coupled with high heritability and expected genetic gain were recorded for duration between flowering to pegging, kernel weight per plant, number of branches per plant, plant height, and harvest index in the experiment. Dry pod yield per plant exhibited positive and significant correlations coefficient with harvest index at both genotypic and phenotypic levels On the basis of this study the genotype UG-197, UG-229, UG-232, UG-229, UG-234, UG-228, UG-234, UG-192, UG-234, UG-192 and UG-236 were found to have considerably high mean values for traits like dry pod yield per plant, plant height, sound mature kernels, number of branches per plant, 100-kernel weight, kernel weight per plant, shelling percentage, biological yield per plant, harvest index, duration between flowering to pegging, oil content while genotypes UG-199 and UG-198 have considerably low mean values for traits like days to 50 per cent flowering and days to maturity, respectively. So above genotypes can be further used in breeding programme. An ideal plant of groundnut is one which should have higher value of harvest index, duration between flowering to pegging, kernel weight per plant, number of branches per plant and plant height.EnglishThesis