砧木是梨树栽培的基础 ,可以有效地增强梨树的抗性和适应性 ,调节树势 ,保证栽培品种的优良特性 ,克服梨树用其他方法不易繁殖的困难。培育梨树苗木必须先播种砧木种子 ,培育砧木苗 ,然后嫁接栽培品种接穗 ,经过剪砧 ,最后长成梨树成品苗 ,因此 ,砧木种子的处理及播种技术是培 Rootstocks are the basis of pear cultivation, which can effectively enhance the resistance and adaptability of pear trees, regulate the tree vigor and ensure the fine characteristics of cultivated varieties, and overcome the difficulties that pear trees are difficult to multiply by other methods. Cultivation of pear seedlings must first sowing rootstock seed, cultivating rootstock seedlings, and then grafting cultivar scion, after cutting anvil, and finally grow into finished pear seedlings, therefore, rootstock seed treatment and sowing technology is training