Pruning of grapes in winter is carried out after the leaves fall and before the soil freezes. The pruning of young trees promotes the expansion of the canopy as quickly as possible, early fruiting and early high yield. Pruning of mature trees can adjust the balance between growth and fruiting, allowing the plants to grow robustly and maintain strong fruit-bearing ability. Extend the fruiting years and the life of grape vines to ensure stable and high-quality grape production.

According to the length of grape fruit-bearing mother branches, they can be divided into long, medium and short tip pruning. Cutting less than 4 buds is called short-shoot pruning; cutting 5-7 buds is called mid-shoot pruning; cutting 8-11 buds is called mid-long shoot pruning; cutting more than 12 buds is called long-shoot pruning.

Renewal and pruning of fruiting mother branches. Methods include single-branch update and dual-branch update. When pruning single branches in winter, only the fruit-bearing mother branches are retained, and no preparation branches are left. Leave two new shoots after germination in the second year, remove them during winter pruning, and use the remaining shoots as the mother shoots for fruiting. Double-branch regeneration means leaving two fruit-bearing mother branches in one fruiting part. The upper branch rows are pruned with medium and short tips, and the lower branch rows are pruned with short tips. When pruning in the second winter, all the upper branches are cut off, leaving one long and one short lower branch, and the cycle repeats.