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问:我种的绣球五月开花后十月又开,这是什么原因? 南京王瑞伦答:一年两次开花,是内、外因作用的结果。众所周知,花是一种变态的枝条,是被子植物特有的生殖器官。被子植物经过营养生长后,体内经过一系列复杂的生理生化的变化,一些原来形成茎叶的叶芽发生质变,开始转入生殖生长。这时,茎尖生长锥的顶端分生组织就不再
Q: What kind of reason is the reason why I planted Hydrangeas to bloom again in October after May? Nanjing Wang Ruilun: A bloom twice a year is the result of internal and external causes. As we all know, flower is a perverted branches, is an angiosperm reproductive organs. After angiosperms vegetative growth, the body after a series of complex physiological and biochemical changes, some of the original formation of stem and leaf buds qualitative change, began to reproductive growth. At this point, the apical meristem of the shoot tip cone is no longer present