A large amount of practice has shown that artificial assisted pollination of kiwifruit is an important measure to increase yield. The better the pollination, the larger the fruit and the better the quality. This article introduces the best time for kiwi pollination, and talks about kiwi pollination methods and other issues.

1. The best time to pollinate kiwifruit

The best time to pollinate kiwifruit is from budding to flowering, which is about 35-40 days. It takes about 2-4 days for a flower to bloom, and the peak flowering period is about 3-4 days.

Generally, artificial pollination takes place around 8-10 am when the female flowers are fully open, and around 3-6 pm. However, the temperature is relatively high in the afternoon, which will also affect pollen shedding and pollination.

2. Key points for collecting kiwi pollen

When the female kiwi tree blooms, the male pollen can be collected for pollination. Pollen is generally collected between 8 and 9 a.m. and must be collected on a sunny day. Collection on a rainy day will affect the quality of the pollen.

Pollen can be stored for 18-36 hours at room temperature and about 1 week in a refrigerator at 6°C. Storage for too long will affect pollination.

3. How to pollinate kiwifruit

Generally, you can use a liquid sprayer for pollination. Wash 100 grams of pollen in 0.5 kilograms of water, filter it to get the pollen liquid, and then add borax. Mix it with 10% sucrose evenly, pour it into a clean sprayer, and spray it on the style of the female flower.

When pollinating with a sprayer, the nozzle must be pointed upward to spray the developed female flowers, and the action must be fast to avoid wasting pollen.

Sprayer pollination should generally be carried out when more than 30% of the flowers have bloomed. After all the flowers have bloomed, spray the entire garden once to complete the pollination. Check again the next day if there are still some parts that have not been successfully fertilized. , can be granted once more.

4. Precautions for kiwi pollination

When most of the female flowers of the kiwi fruit tree (about 60-70%) are open, spray the dew after it has been completely absorbed. Be sure to aim the spray. The flower group can pull the trigger and quickly spray and move according to the direction and sequence.

Don't stay in one place for too long, because the formation of water droplets will cause the pollen to drip and reduce the pollination effect. Large areas of female flowers can be sprayed continuously and repeatedly, and small numbers or single female flowers can be sprayed in bursts, which can save pollen.

Since pollen is very fine and light, it is difficult to dissolve directly in water. You can first dissolve the sugar with a small amount of water, use the viscosity of the concentrated sugar to stick the pollen together, and then dilute it.