对大紫、那翁、红灯、红艳、晚黄的生物学研究表明，各品种物候阶段在前期基本一致，从生理落果后出现差异，大紫、红灯、红艳、那翁、晚黄依次成熟。各品种新梢生长量有较大差别，但均呈连续状态。果实生长均呈“双Ｓ”型曲线，果实成熟期主要决定于硬核期、果实膨大期的长短。不同品种的花量、果量及坐果率有所不同，但均能满足生产要求。５个品种均为自花不孕，但可相互作授粉树，其中以红灯果实外观及内部品质最好，是具有发展前途的主要品种 The biological research on the big purple, that of the Weng, red light, Hongyan, late yellow showed that the phenological stages of all varieties were basically the same in the early prophase, there were differences after the physiology drop, purple, red, red, Yellow followed by mature. All varieties of shoot growth are quite different, but all showed a continuous state. Fruit growth showed “double S” type curve, the fruit maturity is mainly determined by the hard nuclei, fruit enlargement period length. Different varieties of flowers, fruit and fruit setting rate is different, but can meet the production requirements. Five varieties are self-fertility, but pollinated each other can be pollinated trees, of which the appearance and internal quality of the red light fruit is the best, is a major development with a promising species