Although there are few physiological fruit drop in the process of organic kiwifruit planting, its fruit set rate is restricted by pollination and fertilization. Therefore, it is necessary to produce high-quality and high-efficiency kiwifruit, and sparse flowers to strengthen pollination to improve fruit set rate and ensure another important supporting measure of fruit quality. Here to explain organic kiwi pollination technology.
1, bee flowering:
Before the bee was released, the feed was added to the male flower of the kiwifruit to train the bees for 1-2 days. When the female flowers were opened, 6-8 boxes of bees were placed on every 15 mu of land and pollinated by the activity of the bees.
2, artificial pollination:
(1) Pollen collection
Specially construct an orchard garden or before the opening of the female flower, collect the male flowers that are to be placed or opened before 10am and after 4pm, peel off the yellow anthers, spread them with black wax paper, or place them in 25 -28 °C oven drying. Place the dried or dried anthers in a sieve and gently brush them with a brush to make the pollen fall on the colored paper beneath the sieve. Then use a brush to collect the pollen gently and put it into a clean colored bottle, or use other light-proof and moisture-proof containers, and put it in the refrigerator for refrigerated use. The pollen can only be stored for 3-4 days at room temperature under the condition of no light. Note that when the anthers are spread out, they cannot be directly exposed to sunlight.
(2) Pollination
When one-third of the female flowers are fully open, the first artificial pollination begins. Pollination can be pollinated by dry powder and gouache:
Dry powder pollination: dry pollination can be manual pollination and mechanical pollination. If the amount of pollen is small and there are fewer female flowers, hand pollination can be used. The method is: After mixing the pollen, starch or talcum powder in a ratio of 1:20, use a brush or spoon to take the female stigma of the powder. This method can be granted once a day. If the pollen amount is sufficient and the female flower volume is large, pollen and starch or talcum powder can be mixed. The pollen powder is uniformly mixed at a ratio of 1:50 and placed in a duster. The powder can be sprayed on the female stigma head.
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