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苹果树矮化密植,丰产、优质、节地、投资回收快,是发展苹果生产的世界性趋势,而选用矮化砧木是实现矮密栽培的前提与途径。为了获得园艺性状优良的苹果矮化砧木,世界各国的果树育种家们都努力研究,并取得了瞩目的成就,如英国的M、MM系,美国的MAC、CC系,波兰的P系,前苏联的B系。
Apple trees dwarf dense planting, high yield, high quality, land, fast investment recovery is the development of apple production worldwide trend, and the selection of dwarfing rootstock is the premise and approach to achieve short planting. In order to obtain apple dwarf rootstocks with good horticultural traits, fruit tree breeders all over the world have made great efforts to study and achieved remarkable achievements such as M, MM in the United Kingdom, MAC in the United States, CC Department, P Department in Poland, Soviet B Department.