First, the pollen do pollinated varieties advantages: 1, pollen exuberant vitality, pollen tube growth rapid, strong, high-pollination force, under the same experimental conditions, the length of the force and the pollen germination snowflake obviously than other varieties higher than about 20%, so pollen can guarantee a good pollination and fertilization of fruit trees, fruit trees to improve fruit. 2, Sydney fruit shape, good quality, as pollinated varieties, can be pollinated varieties of fruit increased a, improve the quality of the fruit. Second, the pollen Caution 1, pollen during storage and transportation, avoid heat and direct sunlight to prevent moisture. Long-term do not be put at 0-5 ℃ of environment. 2, when the pollen used pollen should first lay it in the dark and damp environment for more than 24 hours of full absorption. 3, pollen must be now with the current. 4, pollen inclement weather climate, to grant 1-2 times more, in order to ensure adequate pollination. On the flower will cause serious injury climatic conditions such as frost, pay attention to early prevention. Flower is compromised, no matter how good the quality of the pollen is useless.