据《园艺学报》2013年第11期《苹果中间砧入土深度对根系生长及其激素含量和果实产量品质的影》(作者任雪菲等)报道,以“长富2号”苹果为材料,研究比较矮化中间砧(M26)入土深度对基砧根系生长分布、根系激素含量和果实产量品质的影响。结果表明,矮化中间砧入土深度为15 cm时,树体细根(直径<2 mm)主要分布在0~40 cm土层,细根数比其他处理多13.6%~41.5%,总根数多18.2%~33.3%,根系干重多11.2%~68.4%, According to “Horticulture Journal” 2013 No. 11 “apple root anvil into soil depth on the root growth and its hormone content and fruit yield and quality” (author Ren Xuefei, etc.) reported to “Chang Fu 2 ” apple as material, The effects of depth of soil dwarfing (M26) on the root growth, root hormone content and fruit yield and quality of the rootstock were compared. The results showed that fine dwarf root (diameter <2 mm) was mainly distributed in 0-40 cm soil layer when root depth was 15 cm, and the number of fine root was 13.6% -41.5% more than other treatments. The total root number More than 18.2% ~ 33.3%, dry root more than 11.2% to 68.4%