What is an introduction? What is the significance of jujube introduction?

The so-called introduction is to transplant a tree species outside its natural distribution area for planting. For example, the natural distribution area of Zizyphus jujuba in Jishan County is Jishan County, and planting Zizyphus jujuba in other counties or provinces outside Jishan County is called "introduction". Jujube is one of the oldest cultivated fruit trees in China, with rich resources and many varieties. According to incomplete statistics, there are more than 700 varieties in China, and there are hundreds of varieties in Shanxi Province alone, among which there are more than 30 excellent varieties, especially the "Top Ten Famous Dates" in Shanxi Province. However, the natural distribution range of many excellent varieties is very narrow and the yield is extremely low. For example, jujube. Jishan Mountain in Shanxi is only distributed in several towns and villages in Jishan County, with an annual output of only 6,543,800 kilograms. This shows that it is necessary to actively expand the cultivation area of excellent jujube varieties through introduction and improve the yield and quality of jujube in the whole province. At the same time, there are many excellent jujube varieties inside and outside the province, which can provide a solid material foundation for our introduction.

Introduction is a shortcut to enrich jujube varieties in various regions, simple and effective. Therefore, introduction is an important way to expand the cultivation scope of jujube trees and realize the variety improvement and variety regionalization of jujube trees in the whole province.