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本文通过解剖在梨花芽发现,在苞片、真叶及过渡叶的腋间,除空生节位外,若不着生侧花、呆台副梢,则必然生有针状形的“演变物”。各花芽之间,序内演变物最多条数与花序花蕾数之和近于一个常数。笔者认为演变物起源于败育的花朵,这是造成茌梨花序花朵数少的根本原因;演变物在一个花芽内发生数量的多寡,与该芽于花芽分化过程中芽体的营养状况有关。
In this paper, through the dissection of pear buds found in the bracts, true leaves and transition axillary axillary, in addition to air-born node, if not lateral flowers, dwarf tip, you will naturally have a needle-shaped “evolution ”. Between the flower buds, the maximum number of evolution within the sequence and the number of inflorescence buds close to a constant. The author believes that the evolution of things originated in the abortion of flowers, which is caused by pear pear inflorescences the root cause of the small number of the evolution of the occurrence of a flower bud in the amount of quantity, and buds in the flower bud differentiation process buds nutrition status.