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作者着重观察了国光苹果花芽开始分化的时期和着生该花芽枝条停长的时期之间的关系。连续三年的观察看到:从枝条停长到花原始作出现,这一段时间的长短是相对稳定的。在辽宁兴城地区,大体是五周。30～50％的花芽都在第六周开始分化。由于异质性的原因,其余的芽将在以后陆续分化,但延续的时间不晚于第十周。在这一段时间内,条件合适,就分化成花芽,否则就成为叶芽,超过这个时期芽就定型了。对整个植株来说,枝条停长是陆续进行的,因此花芽分化也是陆续开始的,从短枝停长后的第六周到第十周是国光花芽分化集中的时期。
The author focuses on observing the relationship between the period when Guoguang apple flower buds began to differentiate and the period when the flower buds and branches stopped growing. Observed for three consecutive years to see: stopped from the branches to spend the original made, this period of time is relatively stable. Xingcheng in Liaoning Province, roughly five weeks. 30 to 50% of the flower buds begin to differentiate in the sixth week. Due to heterogeneity, the remaining shoots will gradually differentiate in the future, but the continuation of the time no later than the tenth week. During this period of time, the conditions are right, the differentiation into flower buds, or become leaf buds, more than this period bud shape. For the entire plant, the branch is suspended one after another, so flower bud differentiation began one after another, from the spur to stop the long after the sixth week to the tenth week Guiguang flower bud differentiation concentrated period.