最好看免费中文,久久久久久亚洲精品不卡,2022国产成人精品视频人,性久久久久久久

What are the conditions for pollination trees in fruit trees?

Fruit tree pollination is not just what the trees are, and must be planted varieties of flowering, pollen quantity, high germination rate, at the same time enter the stage, the two life is equal, no alternate bearing phenomenon, with the main varieties of pollination affinity strong, no hybridization phenomenon of infertility. Secondly, it can adapt to the local natural environment, stress resistance, high yield, excellent quality. Third, with the main varieties at the same time into the fruit stage, fruit maturity is basically the same, the life span is similar. The best thing to do is that the fruit of the pollinating variety must be large. To meet the above four conditions, is a qualified pollination tree!

Previous：How do you pick pears?         Next：The green apple is ripe. Look at its nutritional value!