At present, there are three types of peach tree seedlings commonly cultivated in production: ① biennial seedlings. The seeds were sown in the spring of the previous year and grafted in the autumn of the previous year. The buds germinated in the following spring and matured in autumn and winter. ②Fast-growing seedlings (ie three-year-old seedlings). The seeds are sown in early spring of that year, grafted in early summer of that year (early to mid-June) to promote the germination of grafted buds, and seedlings mature in autumn and winter of that year. ③ Semi-grown seedlings (seedlings). The seeds are sown in the spring of the same year, grafted in the autumn of the same year, and the surviving sprouts are grown in autumn and winter. Biennial seedlings grow vigorously and robustly; fast-growing seedlings are low-cost and cheap, and can grow robustly under good management conditions; sprouts are easy to shape early and require careful management. Each of these three types of seedlings has its own advantages and disadvantages, and they are all currently used in production, especially the first two. At present, my country is formulating industry standards for peach seedlings. The following seedling quality standards are proposed based on the peach seedling quality standards proposed by the Zhengzhou Fruit Tree Research Institute of the Chinese Academy of Agricultural Sciences and other units and the current seedling production situation (Table 8, Table 9, and Table 10).

Table 8 Quality indicators of second-year seedlings

Table 9 Quality indicators of fast-growing peach seedlings

Table 10 Quality indicators of semi-grown peach seedlings (sprouting seedlings)