Tomatoes have bloomed. They can complete the pollination process by themselves through wind, insects, etc. under natural circumstances, without the need for artificial pollination; they can self-flower and bear fruit. Tomato flowers are bisexual flowers with pistils and stamens. Each inflorescence has more than 5 to 10 small flowers.

Generally, artificial assisted pollination is required under the following conditions.

1. When pollen viability is poor: Tomato pollen will have poor pollen viability when the night temperature is lower than 10°C to 12°C and the day temperature is lower than 20°C to 22°C. If the night temperature is 20°C to 22°C and the day temperature is higher than 32°C, a similar situation will occur and artificial assisted pollination will be required.

2. The styles of some varieties are too long and the stigmas are exposed during flowering, making them unable to pollinate and requiring artificial pollination.

3. If it is cultivated on a closed balcony or a balcony of a high-rise building, it will not bear fruit; artificial pollination can be used.

Artificial pollination method:

(1) Vibrating or shaking the inflorescence can promote the pollen to disperse from the pollen sacs and fall on the stigma, thereby achieving the purpose of artificial assisted pollination. . The appropriate time to shake the inflorescences or vibrate the plants is 9 to 10 am. Pollen vitality is at its best at this time.

(2) Use cotton swabs, brushes, paper towels, etc. to stick pollen on them, and then stick the pistils.