即使在最适宜栽培李树的地区,包括北高加索在内,李树品种也很少,而且不适应现代工业化生产的要求。近年来,虽然像等优良品种得到了广泛推广,但培育工业化李品种的任务还远未完成。同时,李树具有改良品种的特殊可 Even in areas most suitable for the cultivation of plum trees, including the North Caucasus, plum species are few and not suited to modern industrialized production requirements. In recent years, the task of nurturing industrialized varieties of Li is far from complete, although it has been widely promoted such as fine varieties. At the same time, Li Shu has special varieties to improve