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秋季喂饲~(14)C 后,由于矮化、半矮化中间砧段对~(14)C 同化物质有滞阻作用,下运缓慢,养分积累期和休眠期地上部~(14)C 相对含量高于根系。萌芽生长期则上运缓慢,地上部又大量消耗,所以地上部~(14)C 含量低于乔砧树。新梢旺长期间,营养转换期较早,地上部~(14)C 含量有所增加,而根系相对含量下降。新梢缓长期地上部~(14)C 相对含量急剧上升,根系含量继续下降。由于矮化、半矮化中间砧段的滞阻作用,地上部一直对根系的碳素营养以限量供应,抑制了根系的生长。反之,中间砧的滞阻作用,萌芽生长期间根系也对地上部发生限量供应,抑制地上部的营养生长。但由于地上部营养转换期较早,当年合成较多碳素营养而有利于花芽分化、座果和品质的提高。
After the autumn feeding of ~ (14) C, the dwarfing and semi-dwarfing middle anvil segments retarded the assimilation of ~ (14) C, slowed down, accumulated nutrients and dormant stage. The relative content is higher than the root system. The germination of the growth period is slow, on the ground and a lot of consumption, so the aboveground ~ (14) C content is lower than Joe anvil trees. During the long shoots, the nutrient conversion period was earlier, the content of ~ (14) C in shoots increased and the relative content of roots decreased. The new shoots slowly in the upper part of ~ (14) C relative content increased sharply, root content continued to decline. Due to the stagnation of dwarfing and semi-dwarfing anvil segments, the shoots had been providing limited supply of carbon nutrients to the root system, inhibiting root growth. On the contrary, the stagnation of the middle anvil, the root growth during germination also occurred limited supply to the ground, inhibit vegetative growth aboveground. However, due to the early conversion period of shoot nutrition above ground, more carbon nutrients were synthesized in that year, which is good for flower bud differentiation, fruit quality and fruit quality improvement.