Bud grafting and branch grafting are the most common grafting methods with the highest survival rate. In addition to budding and branch grafting, other methods such as sleeve grafting, tie grafting and abdominal grafting can also be used
1. Budding time: the time for budding should be well selected. It can be selected in the period of slow growth of trees. At this time, the budding tissue becomes full and the cambium cells are still active. It is not suitable to graft too early or too late. Too early grafting will make the grafted buds germinate in the same year, and it is difficult to achieve lignification in the same year, so it is easy to be frozen. Too late grafting will make it difficult to peel off the rootstock bark
2. Select a good bud: select the full bud on the middle part of the branch as the bud, the bud size should be appropriate, and the bud is generally cut into shield shape or ring block shape
3. Budding methods: because of different forms, budding can be divided into bud grafting, sentinel grafting, tube budding and bud eye grafting, among which bud grafting is widely used
The time of branching can be selected in early spring, the best time is when SAP begins to flow and bark is easy to peel, that is, March to April in spring. In addition to spring, it can also be grafted in autumn. Cut strong, strong and healthy branches as cuttings, cultivate rootstocks, and then graft. The common branch grafting methods are splitting, cutting and abutting. After grafting, the branches are tightly bound, and then the bundles are loosened
