研究表明，抗寒苹果矮化砧ＧＭ—２５６有很好的亲合性，可同多个品种配套；繁殖时要用芽接的方法。劈接接口愈合不好，在重负载的情况下，多发生断裂；由于其在一般情况下生根困难，只能做中间砧使用。砧段长度以２０～３０ｃｍ为宜；使用寄生砧的方法定植的果园，株间生长发育，产量都比较整齐一致，便于管理；定植后多头高接，比成苗下地早期产量高 Studies have shown that cold-resistant apple dwarfing anvil GM-256 has good affinity, with a variety of varieties supporting; breeding budding method to be used. The splice interface healing is not good, in the case of heavy load, more rupture; due to its rooting difficulties in general, can only be used as an anvil. The length of the anvil section is 20 ~ 30cm. The orchard planted by using the method of parasitic anvil has the same growth and yield, and the yield is relatively uniform and easy to manage. After the planting, the length of the orchard is higher than the early yield of the seedling