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用环割法和~(32)P 标记法研究文冠果年生长周期内有机营养物质的运输与累积,结果表明:开花、抽梢放叶及幼果生长所需营养物质主要来自头一年在枝、干及根系的贮存物质;新梢形成顶芽以后,叶片所制造的营养物质除满足本枝果穗需要外,有一部分还向枝、干、根系及顶芽运输;果实成熟前半月左右起,营养物质不再向果穗运输,而是运向枝、干、根系及芽,以满足花芽分化及保证次年开花、抽梢放叶及幼果生长发育的需要。
The ring cutting method and ~ (32) P labeling method were used to study the transport and accumulation of organic nutrients in the annual growth period of Xanthoceras sorbifolia. The results showed that the nutrients required for flowering, In the branches, stems and roots of the storage material; shoots to form the top bud after the leaves of nutrients in addition to meet the branch of the ear needs, there are also part of the branches, stems, roots and top bud transport; ripe fruit before about half a month From the beginning, nutrients are no longer transported to the ear, but to the branches, stems, roots and buds to meet the flower bud differentiation and to ensure the flowering the next year, Shoot the leaves and young fruit growth and development needs.