The hardness of fruit tree branches is related to the types and varieties of fruit trees. For example, the branches of Xu, Huang Kui in apples are soft and hard; But the branches of ruby, comb and autumn flower skin are soft; The branches of Guoguang Department, Marshal Department and Jinguan Department are moderate in hardness.

The hardness of fruit tree branches is directly related to the firmness of tree skeleton. In the process of shaping and pruning, the main branch angle should be opened as soon as possible for varieties with large branch hardness and small opening angle; For varieties with small branch hardness and large opening angle, attention should be paid to adjusting the branch angle as soon as possible to prevent the opening from being too large and affecting the later load capacity.

In addition, when determining the height of the trunk, the hardness of the branches should also be considered. In general, if the hardness of branches is small, the fixed dry height should be appropriately higher to prevent the main branches from falling after the full fruit period, which will affect management and fruit quality; If the branches are hard, the fixed stem height can be shorter, so as to expand the crown quickly and improve the early yield.