Growth and dry matter production characteristics of high-yielding, high-oil, and high oleic acid peanut varieties

This study compared the growth dynamics, dry matter accumulation, yield components, and oil accumulation characteristics of three high-oleic-acid peanut varieties—Jihua 915, Jihua 19, and Jihua 521—during the 2023 and 2024 growing seasons. The aim was to provide a theoretical basis for understanding the mechanisms underlying high yield, high oil content, and high oleic acid levels. Results showed that yield followed the order: Jihua 915 > Jihua 19 > Jihua 521. Jihua 915 exhibited a shorter plant height ( rapid accumulation of oil and oleic acid—was a key contributor to its high yield and quality. The results can provide theoretical basis for breeding new peanut varieties and formulating cultivation technique.