矮化砧是一种树冠发育比较矮小的砧木,用这种砧木嫁接苹果,可以实行密植,便于操作管理。国外应用苹果矮化砧已久,1914—1917年英国东茂林试验站,从乐园和道生苹果中选出了16个营养系砧木,分别定名为M1—M16号。(即东茂林1—16号)。这批砧木按其嫁接苹果生长势的不同,分为矮化,半矮化和乔化三种类型; Dwarfing anvil is a kind of rootstock with relatively short crown development. Grafting apples with this kind of rootstock can be carried out close planting and easy to operate and manage. Apple dwarfing an application abroad for a long time, from 1914 to 1917 British East Maolin Experimental Station, from Paradise and Road apple 16 selected rootstocks, respectively, named M1-M16. (Ie East Maolin 1-16). These rootstocks are divided into three types of dwarfing, semi-dwarfing and Qiaohua according to the different growth potential of grafted apple;