在繁殖苹果优良新品种苗木时,接穗不足是生产中经常遇到的问題。可以采用高接、摘心和延长嫁接时间三种方法来加以解决。一、高接繁殖;选择健壮、无病的植株作为高接树,在春季树液开始流动,但尚未发芽时,将主、侧骨干枝从分枝部位以上 In the breeding of excellent new varieties of apple seedlings, scion shortage is often encountered in the production of the problem. You can use high pick, topping and extend the time to grafting three ways to solve it. First, the high-take breeding; choose robust, disease-free plants as high pick tree, in the spring sap began to flow, but not yet germinated, the main and lateral bone branches from above the branches