栽培苹果、梨、杏、李、桃、葡萄等部需要用嫁接苗。嫁接苗能保持品种的优良性状,开始结果年龄早,繁殖速度快,单位面积产量高。一、砧木的选择选择砧木,必须适应栽培地区的气候、土壤条件。如苹果的砧木山丁子,抗寒、抗旱性强,但在盐碱地上容易黄化,生长不良,在没有盐碱性的上壤上生长良好。海棠果作苹果的砧木,抗寒、抗旱,耐盐碱,如西府海棠(林檎)、八楞海棠、黄海棠等。裂的砧木有山梨及杜梨两种。杜梨较耐盐碱,能抗旱、抗寒,是梨的主要砧木。而山梨虽然抗寒性强,但不耐盐碱,一般在盐碱性小的山坡地栽培梨树用山梨砧木。杏的砧木有山杏、实生家杏。在内蒙古东部区多用山杏砧木。但大多数地区栽培杏树 Cultivation of apples, pears, apricots, plums, peaches, grapes and other departments need to use grafted seedlings. Grafted seedlings can maintain the fine traits of varieties, the results begin early, reproductive speed, high yield per unit area. First, the choice of rootstock Rootstock, you must adapt to the cultivation of climate, soil conditions. Such as Apple rootstock Hill Dingzi, cold, drought-resistant, but easy to yellow in saline-alkali, poor growth, growth in the soil without salinity alkaline. Begonia fruit as apple rootstock, cold, drought, salt, such as Begonia West (Lin Kai), Radix Begonia, Begonia and so on. Cracked rootstock Yamanashi and Du pear two. Pear salt than alkali, can drought, cold, pear is the main rootstock. The sorbus, though cold hardiness, but not salt, salt and alkaline generally in the hillside cultivation of pear with Yamanashi rootstock. Apricot rootstock apricot, real apricot. In the eastern region of Inner Mongolia with more apricot rootstocks. However, apricot is cultivated in most areas