CD Skripsi
Variabilitas Dan Pewarisan Berbagai Karakter Beberapa Varietas Kacang Tanah (Arachis Hypogaea L.)
ABSTRACT
Peanuts (Arachis hypogaea L.) are an important agricultural commodity in Indonesia, with production increasing every year. One of the main challenges in improving peanut production is the limited availability of superior varieties that are specific to particular locations. Efforts to enhance peanut varieties can be carried out by utilizing the genetic variability available through plant breeding programs. This study aimed to analyze genetic variability, diversity components, heritability, phenotypic correlation and direct selection responses from various quantitative traits in peanut cultivation. The research utilized a randomized block design consisting of 12 peanut varieties, each repeated three times, resulting in a total 36 experimental plots. Data were analyzed using analysis of variance followed by the 5% BNJ test, along with the calculation of diversity components, heritability, phenotypic correlation and direct selection response. The result indicated wide genetic variability and high heritability across all traits, except for the number of primary branches per plant. Phenotypic correlation analysis revealed that traits such as the number of pods per plant, pod weight per plant, seed count per plant, seed weight per plant and seed count per pod were significantly and positively correlated with pod weigh per square meter and seed weight per square meter. These findings suggest that these traits have the potential to be utilized as selection criteria to improve peanut production per unit area.
Keywords: Heritability, phenotypic correlation, direct selection response, diversity components
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