Sharma, HemlataDhakar, Tulsi Ram2017-10-032017-10-032015Dhaker and Sharma, 2015http://krishikosh.egranth.ac.in/handle/1/5810032045Character Association and Genetic Divergence in Groundnut (Arachis hypogaea L.)The present investigation entitled “Character Association and Genetic Divergence in Groundnut (Arachis hypogaea L.)” was conducted with 93 genotypes (including three checks namely TG-37A, Pratap Mungphali-2 and Pratap Raj Mungphali) during Kharif- 2014 at the Instructional Farm, College of Technology and Engineering (CTAE), Maharana Pratap University of Agriculture and Technology, Udaipur (MPUAT). The genotypes were planted in augmented design in six blocks. The observations were recorded for 15 characters viz., days to 50 per cent flowering, days to maturity, plant height, number of branches per plant, number of matured pods per plant, dry pod yield per plant, kernel yield per plant, 100-kernel weight, sound mature kernel, shelling percentage, biological yield per plant, harvest index, dormancy, oil content and protein content on five randomly selected plants from each genotype in each rows, while days to 50 per cent flowering and days to maturity were recorded on plot basis and average value were subjected to analysis of genetic variance, correlation coefficients, path coefficients and genetic divergence. The estimates of genotypic parameters revealed that differences between the estimates of GCV and PCV were found least for most of the characters. Higher estimates of GCV were observed for number of mature pods per plant, dry pod yield per plant, kernel yield per plant and dormancy. Maximum heritability was found for protein content followed by oil content, days to 50 per cent flowering, kernel yield per plant and dry pod yield per plant. While, maximum genetic gain was observed for dormancy followed by kernel yield per plant, dry pod yield per plant and number of mature pods per plant. Present experimental findings revealed that characters viz ; number of mature pods per plant, dry pod yield per plant, kernel yield per plant showed high GCV, heritability and genetic gain. Hence, selection can be made for improvement of these characters. Association estimates revealed that dry pod yield per plant was positively correlated at both genotypic as well as phenotypic levels with kernel yield per plant, 100-kernel weight, sound mature kernel and biological yield per plant. Similarly, kernel yield per plant also showed positive correlation with number of mature pods per plant, dry pod yield per plant, 100-kernel weight, sound mature kernels, shelling percentage and biological yield per plant, at both genotypic as well as phenotypic levels. Path coefficient analysis revealed maximum direct effect by kernel yield per plant (2.28). While, high positive indirect effect on dry pod yield was exhibited by number of mature pods per plant through kernel yield per plant (2.07). Similarly, oil content through number of mature pods per plant (0.50) and number of branches per plant through kernel yield per plant (0.37) also showed high indirect effects. Genotypes in cluster VIII possessed genotypes having high dry pod yield as well as number of mature pods per plant and kernel yield. Therefore, crosses among these genotypes are expected to give transgressive segregants.ennullThesis