由于核桃多年实生繁殖,后代良莠不齐。河北省有60％以上20年生左右的核桃表现结果晚,产量低,品质差。为了解决这一问题,1981—1983年进行了核桃大树高接技术研究,1983年采用接穗蜡封,插皮舌接法,取得了明显效果,接枝成活率达90.32％,接穗成活率达78.55％,为改造低产劣种树提供了有效的方法。 Due to many years of walnut breeding, good and bad offspring. More than 60% of Hebei’s perennial walnuts show late results, low yields and poor quality. In order to solve this problem, in 1981-1983, the research on the high-walnut tree access was carried out. In 1983, using the scion wax seal and the tongue plugging method, the obvious effect was obtained. The graft survival rate reached 90.32%, and the scion survival rate reached 78.55%, which provided an effective method for transformation of low-yielding inferior trees.