苹果矮砧和乔砧、矮砧和苹果品种之间的组织解剖构造有显著差异,特别是输导系统的差异,直接影响嫁接品种地上部和砧木根系间的物质运转。有关矮化砧对矿质营养元素的输导,国外有不少报道。但对有机营养物质的运转研究尚少。有机营养物质对果树的生育有极大影响,特别是地上部合成的碳素营养物质,不 There were significant differences in the anatomical structures between apple dwarf ancestor and Joe anvil, dwarf anvil and apple cultivars, especially the differences in the system of transplanting, which directly influenced the material movement between shoots and roots of grafted varieties. The dwarfing anvil on the transport of mineral nutrients, many foreign reports. However, there is little research on the operation of organic nutrients. Organic nutrients have a great impact on the fertility of fruit trees, especially the carbon nutrients synthesized above the ground, not