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龙眼的花芽是混合芽,其上花原基与叶原基同时存在。当芽体通过了生理分化之后,在进入形态分化期时,因内外条件不同,可能有三种不同的分化结果。第一种是花原基发育,叶原基不发育,芽体上原来存在的饰变性叶(实质是非常紧缩短小的复叶原始体)也脱落掉,形成纯花穗。这是最好的情况
The longan flower bud is a mixed bud, on which the primordia and leaf primordium exist. When the bud through the physiological differentiation, into the morphological differentiation period, due to different internal and external conditions, there may be three different differentiation results. The first is the development of flower primordia, leaf primordia are not developed, the original existence of ornamental degeneration on the bud leaves (in essence, is a very tight short, the original compound leaf) also fall off, the formation of pure spikes. This is the best situation