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１９９７年通过对吉林省农科院果树研究所、内蒙古哲里木盟开鲁县、赤峰市宁城县、乌兰察布盟商都县ＧＭ２５６矮化中间砧苹果园的考察，总结了ＧＭ２５６矮化中间砧苹果树抗寒力强，结果早，丰产早，树体矮化，嫁接亲和力强等生产特点，同时就生产中存在的主要问题进行了讨论。
In 1997 through the Jilin Provincial Academy of Agricultural Sciences Institute of Fruit, Inner Mongolia Zhelemu Union County, Kailu County, Chifeng Ningcheng County, Wulanchabu al counties GM256 dwarfing apple orchards study dwarfed GM256 summarizes dwarfing The middle anvil apple tree cold hard, early results, early harvest, dwarf tree, grafting affinity and other production characteristics, while the production of the main problems are discussed.