Performance Evaluation of Peanut Genotypes in Terms of Agronomic and Quality
Keywords:
Peanut, genotype, yield, quality, principal component analyseAbstract
In this study, the agronomic and quality parameters of nine different peanut genotypes (57-422 Senegal, 96-Australia, 98-Australia, Argentina, Florispan, Georgia Green, New Mexico, Starr, and Starr Spanish) were evaluated. The study was conducted in a randomized block design with three replications, and the following parameters were examined: yield, first-quality pod ratio (FiQuPoRa), second-quality pod ratio (SeQuPoRa), hundred-pod weight (OHuPoWe), hundred-seed weight (OHuSeWe), and shelling ratio (SeRA). The F values calculated for all parameters were found to be statistically significant, and significant differences were detected between genotypes. In terms of yield, Georgia Green (408.50 kg da-1) showed the highest value, while Starr Spanish (259.91 kg da-1) had the lowest value. In terms of first-quality pod ratio, 98-Australia (66.63%), second-quality pod ratio, Argentina (46.24%), hundred pod and seed weight, Florispan (190.89 g and 111.28 g, respectively), and shelling ratio, 96-Australia (64.85%) were the standout genotypes. Correlation analysis results showed positive and significant relationships between yield and first-quality pod ratio, hundred-pod weight, and hundred-seed weight. Principal component analysis (PCA) revealed that the examined traits explained 78.1% of the total variation and that genotypes were distinctly grouped according to different traits. The results provide valuable information for selecting suitable genotypes for different cultivation purposes and for use in breeding programs.
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