Apple trees: Apple blossoms are the first flowers in the center, and flowers bloom one after another in two days. An inflorescence flower usually takes 5 to 6 days from flowering to culturing. The opening time of a single flower lasts 4 to 5 days. After opening for 3 days, the stigma begins to turn yellow and wilt. Pollination fruit setting rate was the highest on the day of flower opening, and pollination could not be fruited after 4 days of opening. Usually, the first batch of flowers has a high fruit setting rate, the second batch of fruit set has a medium rate, and the third batch of fruit set has a low rate. Therefore, artificial pollination must catch the first flowers. In general, apple pollination time is valid from the day before the flowering period to the third day after flowering. The pollination effect is best when the flower is open on one day; it is appropriate to use no wind, breeze, and sunny weather from 9am to 4pm in one day. . Therefore, artificial pollination should be held at the beginning of flowering time.
Pear tree: pollination time and flower identification. Pear blossoms are usually open after 8am in the early morning. Flowers that are open on that day can be pollinated. Pollination is best for 1 to 2 days. The pollination rate on the third day is very low. The best time to pollinate in one day is from 8am to 2pm. The clearer the weather, the higher the pollination rate. In the pollination process, how to determine the opening time of flowers can be identified by the color of anthers. The flowers that bloomed on the same day were anthers that were pink. Some anthers on the edge of the second day became dark brown as a result of broken powders. On the third day, all anthers turned almost completely black and brown. For such flowers, the stigma was aging. Pollination has no effect.
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