Pollination Effects of Pear Trees by Honeybee and Its Influencing Factors

[Objectives] To improve the yield and quality of different pear varieties by supplementary pollination. [Methods] The effects of bee pollination were compared with other pollination methods, and the effects of different factors on honeybee pollination were studied through experiments. [Results] Honeybee pollination significantly increased the number of fruit per inflorescence. In addition, it could improve the single fruit weight, fruit shape and other quality indicators of fruit. The pollination effect of honeybee was the best in all supplementary pollination measures. Honeybee pollination had good fruit setting effect on different pear varieties, but there were some differences in the effect of quality improvement. Spraying lime sulfur mixture and other measures could significantly affect the effects of honeybee pollination. [Conclusions] The research results prove the effectiveness of honeybee pollination technology in Hebei Province, and provide a certain reference for the establishment of a simple and practical artificial assisted pollination technology system.