Why do grapes have large and small particles?

Everyone should know that the giant peak is more prone to size and size, but why is it clear that the size of the grain is clear? Have you noticed that the non-nuclear giant peak will not have the problem of large and small particles. In the end, the reason why the Kyoho grape is prone to large and small granules is because of the grape nucleus, that is, the seed granules are large, and there are no pollination or poor pollination. The standard Kyoho grape has 4 seeds. Due to the genetic characteristics of the Kyoho, the Kyoho grape for more than 4 years faces the problem of stamen degradation, which is one of the reasons why the Kyoho size is more and more serious for more than 4 years.

Causes of grape size:

1. Reasons for grape varieties: congenital genetic defects, stamen dysplasia such as Jufeng, Jingya, Victoria, etc.;

2, the weather reasons: the grape flowering period encountered high temperature and dry weather or low temperature and rainy weather will affect the normal pollination of the grapes leading to large and small particles;

3, grape deficiency: grape pollination requires the participation of trace elements such as zinc and boron. If zinc or boron is lacking, it will lead to the later size and size;

4, the cause of the tree: If the tree is too strong, vegetative growth and reproductive growth compete for nutrients, resulting in the size of the grape due to lack of nutrients, but if the tree is too weak, it will also affect the production of large and small grains caused by grape fruit;

5, the cause of the disease: flowering period gray mold, cob brown blight and other diseases and green blind mites, thrips and other hazards can also lead to the size of the grape;

6, other reasons: such as flowering watering, no secondary ear treatment.

How to prevent grape size?

1. Rational fertilization: reduce nitrogen fertilizer and increase phosphorus and potassium fertilizer;

2. Strengthen pest and disease control and enhance tree potential;

3. Reasonable pruning to control prosperous plants;

4. Spray the boron fertilizer once before flowering;

5. In the extreme flowering season, you can properly water the field to maintain the humidity in the field.

Naduobao

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