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高山番荔枝(Annona cherimola Mill.)又名南美番荔枝、毛叶番荔枝。对其花粉发芽时进行的显微镜观察发现,在花药纵沟处形成四合化粉。膨胀的花粉粒直径约50μm。从塑料大棚种植的番荔枝四个栽培品种Sabor、Pierce、El Bumpo、Villapark采集花粉,将新采花粉作离体发芽和花粉管伸长研究。结果表明,在含蔗糖15％～20％的2％琼脂培养基上,花粉发芽良好,花粉管明显伸长。花粉发芽和花粉管伸长的最适温度
Annona cherimola Mill. Also known as custard apple, leaf annona. The microscopic observation of the pollen germination found that tetracycline was formed in the anther longitudinal groove. The expanded pollen grains have a diameter of about 50 μm. Pollen was collected from Sabor, Pierce, El Bumpo and Villapark cultivated in a plastic greenhouse, and the newly harvested pollen was used for in vitro germination and pollen tube elongation. The results showed that on the 2% agar medium containing 15% ~ 20% sucrose, the pollen germinated well and the pollen tube grew obviously. Pollen germination and pollen tube elongation of the optimum temperature