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矮化中间砧苹果树深栽后1—2年,中间砧段开始生根,定值后第四年,中间砧根系数量和直径超过基砧山定子根系。定植后第十年,形成以中间砧根系为主,兼有少量基砧山定子根系的果树。矮化中间砧果树根系分布在0—100厘米土层中,其中0—60厘米土层中根系数量占总根量62—84％。中间砧矮化程度越高,果树根系越集中分布在土壤上层,直径0—5毫米的细根占总根量的百分率也越高。
Dwarfing the middle anvil 1 to 2 years after deep planting apple trees, the middle anvil began to root, the fourth year after setting, the root anvil rootstock number and diameter more than the root anvil Hill stator roots. Ten years after planting, the formation of the rootstock rootstock-based, with a small amount of rootstock rootstock rootstock tree. Dwarf middle anvil fruit tree roots distributed in 0-100 cm soil layer, of which 0-60 cm soil layer root volume accounted for 62-84% of the total. The higher the dwarfing degree of the middle anvil, the more concentrated the root system of the fruit tree is in the upper layer of the soil. The fine root with a diameter of 0-5 mm occupies a higher percentage of the total root volume.