Although there are many specific forms of vine pruning, the process of shaping is basically the same. In the first year, according to the target tree shape, the planted seedlings are fixed before germination, and 8 ~ 10 buds are left in the form of trunk, among which the lower four buds should be properly smoothed or cored after germination. In summer, the stout new buds are selected from the new buds germinated from the upper six buds as the main vines, and the remaining weak vines can be thinned or chopped, and then the secondary buds are repeatedly controlled by coring. 3 ~ 5 buds can be cut short from the ground, and after germination, the stout new vine is selected as the main vine stem for culture, and the rest are still drained or cored. The growth intensity, length and thickness of the new shoots of the main vines should be basically the same. When the main branch exceeds 1 m, the core should be removed to make it develop more sturdily. After defoliation in autumn, all main vines should be chopped about 1 m.

After sprouting in the next spring, it is still necessary to choose the strong new shoots at the top of the main vine as the extension heads to maintain a good growth advantage. Others should be kept at 7-8 knots for coring control. After defoliation in autumn, the extension head at the top of the main trunk can be shortened by 1 ~ 2 meters, and all other branches and vines at the lower part can be shortened by 2 ~ 3 buds. In the future, when the short-shoot pruning method is used for the fruiting mother vine, a "Dragon Claw" short-shoot branch group will be cultivated every 20 ~ 30 cm. However, in the future, when pruning the medium and long shoots of the fruiting vine, the branch spacing should be expanded to 30 ~ 35 cm. After the third year, continue to cultivate the trunk and branches of the main vine according to the above methods, and complete all pruning processes according to the target tree as soon as possible while bearing fruit.

Trunk pruning process