Dataset for: Cultivar-Specific Floral Display and Nectar Chemistry in Korean Chestnut (Castanea crenata Siebold & Zucc.)

This dataset supports the manuscript entitled “Cultivar-Specific Floral Display and Nectar Chemistry in Korean Chestnut (Castanea crenata Siebold & Zucc.): Sugar Reward, Honey Production Potential, and Amino Acid Profiles.” It contains data used to analyze cultivar-specific variation in floral display, nectar secretion, sugar reward, sugar composition, free amino acid composition, and estimated honey production potential in four Castanea crenata cultivars grown in Korea: Daebo, Daemyung, Eungi, and Nokjo. The dataset includes tree growth and floral traits, catkin morphology, nectar volume, sugar mass and composition, amino acid profiles and fraction data, and meteorological data during the nectar sampling period.