According to the report of the Fifth International Grape Breeding Academic Symposium held in Germany in 1988, there are 45,000 grape species and varieties preserved in more than 100 variety resource gardens around the world, and 12,000 of them belong to ~ 15,000 genotypes. Some scholars believe that there are about 14,000 cultivated grapes in the world, of which 7,000 to 8,000 are preserved in resource gardens or used in cultivation. These varieties are mainly derived from European species, American species, and European and American hybrids.

1. Classified by effective accumulated temperature and growing days

The sum of the number of days with temperatures ≥10°C in a region in a year is the annual effective accumulated temperature of the region. The growing days refer to the number of days required for grapes to mature from germination to fruit maturity. . Grape varieties are often divided into five categories according to effective accumulated temperature and number of growing days (see table).

See the table for the requirements for effective accumulated temperature and growing days of different grape varieties

2. Classified by use

It can be divided into fresh food varieties, wine making varieties, dried varieties, juice making varieties, canning varieties, rootstock varieties, etc. In fact, it is difficult to clearly separate classes from each other, and they can often be used simultaneously. Some fresh food varieties can also be used to make wine (such as longan) or juice (Kyoho). Some wine making varieties can also be used as rootstocks (such as Beichun). In addition to being dried, the seedless white varieties can also be used for raw food and wine making.