Why don't grapes bear fruit when they bloom?

1. Why is there no result?

1. Variety problem: The lack of fruit may be due to variety problem. The planted variety is a female flower variety, which cannot be pollinated and fertilized, and naturally will not bear fruit. Common varieties include black chicken heart, variegated white chicken heart, Anjiwen, etc.

2. Improper pruning: The plant grows vigorously during the management period, but is not pruned for a long time. As a result, the branches will grow too long, the internal branches and leaves will not see the light, and the buds will not mature well. As a result, flower buds cannot form and fruits will not set.

3. Climate problems: If the flower spike itself is malnourished and encounters continuous rainy or high temperature weather, it will affect pollination and prevent normal fruit setting.

2. What to do if there is no result

Now that you understand the reasons for the lack of results, you should pay attention to it in advance. Prune in time during the growth stage, cut off weak, diseased and duplicate branches to allow better ventilation and light transmission inside. Before flowering, appropriate amounts of fertilizer should be applied, mainly high-phosphorus fertilizer, to promote flower bud differentiation. Also, help with pollination. When the flowers are in bloom, you can wear gloves and touch the male flower buds so that the pollen will stick to the gloves. Then you can touch the female flower buds to help pollination and increase the fruit setting rate.