板栗、核桃是我国主要的木本粮油树种,是经济价值很高,需要大量发展的铁杆庄稼。目前的繁殖方法主要采用种子繁殖,种子繁殖的缺点是后代分化严重,不易保持母本的优良特性,而且开始结果也较晚。如果采用嫁接繁殖,就容易做到良种化和早结果,同时可以利用野生资源,加速板栗、核桃的发展。因此,很多地方都进行了这方面的工作。 1963年以来,我们利用野生资源,进行了不同砧木的嫁接,通过几年的观察,可以看出有的砧木比较理想,也有些砧木嫁接后不易成活,或者有后期不亲和现 Chestnut, walnut is China’s major woody oil tree species, is a high economic value, the need for substantial development of hardcore crops. The current breeding method mainly uses seeds to breed. The disadvantage of seed multiplication is that the offspring are experiencing serious differentiation and it is difficult to maintain the excellent characteristics of the female parent, and the result is also late. If using grafting, it is easy to achieve good seed and early results, while wild resources can be used to speed up the development of chestnut and walnut. Therefore, work in this area has been carried out in many places. Since 1963, we have used wild resources to carry out the grafting of different rootstocks. After several years of observation, we can see that some rootstocks are ideal, and some rootstocks are not easy to survive after being grafted or have late-phase incompatibility