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Abstract
Groundnut (Arachis hypogaea L.) is related to family Fabaceae and is a valuable crop worldwide. Genetic Divergence in groundnut germplasm is a useful genetic tool for breeding strategies. Pod Yield seems to be a complex quantitative trait which is mostly subject to the environment. The selection only for pod yield is not fruitful in enhancing groundnut production. Therefore, the selection competence may be increased by considering the yield contribution factors. Moreover, the presence of genetic divergence in existing germplasm is mandatory to create genetic variation and selection of parents in any breeding experiment. Keeping in view the above scenario, the current study was designed to analyze the interaction between pod yield and the traits related to it. This will help to exploit the variation present in groundnut germplasm and selection of suitable parents for future breeding strategies. Dry pod yield was directly associated with kernel weight, pod length, and No. of pods plant-1 and shelling %. That’s why these parameters may be considered in the selection process when improving groundnut yield. Among studied germplasm, the strains 10AK005, 18AK002, 10CG002, 14CG009, 10AK003, 11AK0011, 14AK007, 17AK003, 17AK004, 14AK001 and BARI-2016 have maximum potential for yield contributing traits. Principal component and cluster analysis were utilized as selection tools to facilitate the breeder with an efficient and easy selection method. The findings of principal component analysis were in line with those of correlation studies. Cluster analysis demarked that the most superior cluster was cluster-3, having maximum values for yield and related parameters. The information gained from this study may be utilized for future breeding programmes with respect to the yield maximization of the groundnut crop.
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