How to pollinate and manage grape flowering

1. How to pollinate

There are many varieties of grapes, but most are pollinated by wind or bees and do not require human assistance. However, some varieties do not assist in pollination and have a lower fruit setting rate. Carefully shake the female and male buds while they are blooming so that the pollen becomes airborne and helps with pollination. Or you can put on gloves and touch the male buds. The pollen will stick to the gloves, and then touch the female buds. This may promote successful pollination and increase the fruit setting rate.

2. How to manage

1. Humidity: Stop watering after it blooms and maintain a good humidity environment. 50% is the most suitable humidity. If you water at this time, the soil temperature will drop, affecting absorption and thus affecting fruit setting.

2. Temperature: It likes a warm environment. The most suitable temperature during flowering period is between 25-28 degrees, and the night temperature should also be controlled between 16-18 degrees. If it is grown in a greenhouse, pay attention to more ventilation during the day. Pay attention to temperature control when you are outdoors at night. Temperatures below 15 degrees will affect flowering.

3. Nutrients: Apply appropriate amounts of fertilizer before flowering. High-phosphorus fertilizer can be selected. Sufficient nutrients can promote flowering. Boric fertilizer should also be sprayed, which will help fruit setting in the later stage. If there is a lack of nutrients, the flowering period will be shortened and the fruit setting rate will decrease.

4. Light: During the flowering period, it needs more sunlight and should be placed in a place with good light every day, ensuring that the light duration is between 7-9 hours. This will enable better photosynthesis and facilitate flower bud differentiation.