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花芽是开花和结果的基础。掌握花芽分化的规律,对制订合理的农业技术提供科学的依据。本文介绍了苹果梨花芽生理分化时期,形态分化时期的始期、盛期、停止分化时期以及单花分化所需要的时间和花芽分化的特性等。又分析讨论了临界节数的相对性及临界节数与花芽分化时期的关系和花芽分化中的退化现象。
Flower buds are the basis for flowering and fruiting. Grasp the law of flower bud differentiation, and provide a scientific basis for formulating reasonable agricultural technology. In this paper, the physiological differentiation period of apple pear flower, the initial period and peak period of morphological differentiation period, the period of stopping differentiation, the time required for single flower differentiation and the characteristics of flower bud differentiation were introduced. Also analyzed and discussed the relative number of critical sections and the number of critical sections and the relationship between flower bud differentiation and flower bud differentiation degeneration.