果树地上部的树干、主枝、侧枝和结果小枝,通称为果树的树冠,树冠所占的空间叫做树冠体积。树冠体积的大小与通风透光条件、果实着色程度、树势强弱、产量高低、质量优劣等有密切关系。因此在生产实践中,为了探索理想的树冠体积,实现 Tree trunk above the ground, the main branch, side branches and fruiting branchlets, commonly known as the crown of fruit trees, crown space occupied by the space called the crown volume. The size of crown volume and ventilation and light conditions, the degree of fruit coloring, tree vigor, yield level, quality advantages and disadvantages are closely related. Therefore, in production practice, in order to explore the ideal canopy volume, to achieve