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对苹果‘国光’、‘金冠’、‘红玉’三个品种,连续三年观察了花、叶芽节位的增长和花芽形态发生过程,看到,随着时间的推移,节位的增长呈“渐近曲线”。从花芽形态分化开始,叶芽的节位就不再增长,而花芽的节位仍继续增长。结果,花芽的节位比叶芽多1—3节。花芽节位的增长主要是在“初前”阶段进行。在‘红玉’上看到另一种增长模式:当花芽开始形态分化后,叶芽和花芽的节位同步增长。B_9可使叶芽的节位增长,但对花芽的节位没有明显的影响。GA_3对叶芽节位数没有影响,但有减少花芽节位数的趋向。文中描述了侧花和雄蕊原始体出现的顺序。花芽“初前”、“初后”、“萼片期”、“花瓣期”在良好的条件下完成各阶段约需一周的时间,而“雄蕊期”及“雌蕊期”则需二周或二周以上。对节位形成间隔期对花芽形成的影响及花芽分化临界节位假说进行了讨论。
The three varieties of ’Guoguang’, ’Golden Delicious’ and ’Hongyu’ were used for three consecutive years to observe the growth of flower buds and leaf buds and the flower bud morphogenesis. It was observed that with the passage of time, the growth of internodes was Asymptotic curve. Starting from the flower bud morphological differentiation, leaf buds no longer increase the node, while the flower buds continue to increase the node. As a result, flower buds have 1 to 3 knots more than leaf buds. The growth of flower buds is mainly in the “first” stage. Another pattern of growth was seen in ’red jade’: when the flower buds began to morphologically differentiate, the buds of the buds and flower buds grew in unison. B_9 can increase the leaf bud node, but no significant effect on the flower bud node. GA_3 had no effect on the number of buds, but decreased the number of buds. The article describes the sequence of occurrence of lateral flowers and stamens. Flower buds “early”, “early”, “sepal” and “petal” will take about one week to complete in all stages under good conditions, whereas “stamen” and “pistil” require two weeks or two Weeks or more. The effects of interval formation between nodes on flower bud formation and the critical node-segment hypothesis of flower bud differentiation were discussed.