What are the requirements for weather conditions during the pear blossom period?

The most favorable weather conditions for pear blossoms are sunny, windless or breezy, and the temperature is stable at around 10℃. The temperature required for pear pollen germination is above 65438 00℃. 65438 04℃ obviously promoted flowering and pollen germination. According to the experiment, it takes 44 hours from pollination to fertilization at 65438 06℃, and the temperature rise is obviously accelerated. The same process can be completed in 9 ~ 22 hours in the middle and lower reaches of the Yangtze River. 17 ~ 18℃ is most favorable for flowering, pollination and fertilization. When the temperature is as low as 4 ~ 5℃, the pollen buds will be damaged. If the temperature is lower, it will be harmed by low temperature.

Strong winds and even rainy days are not conducive to flowering and pollination. Pear trees are self-pollinated and need bees and butterflies or artificial pollination. According to the survey, each bee can collect 60 pears at a time and fly out more than 20 times a day, which is far more efficient than artificial pollination. However, due to the large amount of pollen given by artificial pollination, pear flowers can be pollinated and fertilized more fully, thus affecting the development of fruits and increasing the size of fruits, especially in the case of continuous rainy and windy weather at flowering stage, insects and bees will not go out for activities. Therefore, artificial pollination is an important technical measure to ensure high yield and improve fruit quality.