What are the characteristics of the natural open-center tree form of jujube trees?

The natural open-center tree form of jujube trees is relatively small, with 3 to 4 branches retained per tree and 2 to 3 side branches retained on each main branch, extending naturally in all directions. Advantages of this tree form: good ventilation and light penetration, less bareness inside the canopy, abundant fruiting and good coloring, and the tree form is relatively quick to train, suitable for dense planting, and easy to manage and harvest. Its disadvantages are that, because there is no central leader, there are more secondary branches per unit on the main branches, the load is heavier, and they tend to droop and break in the wind; at the same time, drooping branches renew naturally early and have a relatively short lifespan.