The advantages of varieties are different, and the disadvantages of varieties are different. Displayed according to the query on the WeChat public platform.

1. Summer black grapes have strong trunks, strong growth, fast molding, early fruiting, good germination and branching, good flower bud differentiation, high fruit setting rate, good disease resistance, strong stress resistance, and high yield. It has the characteristics of good stability, strong production stability, and good storage and transportation resistance.

2. The biggest advantages of the Ravel grape variety are strong growth, strong disease resistance, strong fruiting ability, and good yield. Secondly, it also has good flower bud differentiation, early fruiting period, tight ears, and high yield. The grains are larger.

3. Ravel grapes have small berries. Although the flesh is soft and juicy, the taste and flavor are average. Although they are highly resistant to downy mildew, gray mold and other diseases, they are prone to powdery mildew and black pox.

4. In the actual planting and management of summer black grapes, summer black grapes have shortcomings such as the need to pull out inflorescences, slow coloring, heavy flower and fruit drop, and low grafting affinity and survival rate.