1, pollination time
The best pollination time of kiwifruit is from budding to flowering, which is about 35-40 days. 1 flower needs to be open for about 2-4 days, and the flowering period is 3-4 days. Artificial pollination is generally recommended at 8- 10 in the morning when the female flower is fully open, and the high temperature in the afternoon will affect pollen shedding and pollination.
2. Key points of collection
When the kiwifruit mother tree blooms, male pollen can be collected for pollination, usually at 8-9 am, but it should be noted that the collection must be carried out on sunny days, and rainy days will affect the quality of pollen. The pollen should not be stored at room temperature for more than 18-36 hours, which will affect pollination.
3. Pollination method
Generally, a liquid sprayer can be used to rub100g of pollen in 0.5kg of clean water, and then the filtered pollen liquid is mixed with a certain proportion of borax and 10% sucrose. After mixing, pour it into a clean sprayer and spray it on the female style. It needs to be sprayed again in rainy days.
4. Precautions
Pollen is very light and difficult to be directly dissolved in water. You can dissolve white sugar with a small amount of water, stick the pollen together by using the viscosity of thick white sugar, and then dilute it. When pollinating with sprayer, be careful not to stay in one place for too long, which will form water droplets and reduce the pollination effect. Large female flowers can be sprayed continuously and repeatedly, and small or single female flowers can be sprayed, which can save pollen.