Analysis of Physiological Characteristics of Early Fertilization and Pollination Effects of Pear(Pyrus bretschneideri cv.Dangshansu)under Different Pollination Methods
To explore the effects of different pollination methods on the physiological characteristics of early fertilization,fruit dynamic development,and fruit quality of pear(Pyrus bretschneideri cv.Dangshansu),in this study,artificial pollination was used as the control group,and honeybee pollination was used as the treatment group,a microscope was used to observe the differences in pollen germination between pear flowers after artificial pollination and honeybee pollination,paraffin embedded ovary slices was to used to observe differences in ovary development,combined with the dynamic monitoring of fruit development and quality detection,the effect of the two pollination methods on the growth and development of pear fruit was revealed.The results showed that compared with artificial pollination,pear flower pollen germinated earlier after honeybee pollination,germinated at the stigma 2 hours after pollination and reached the base of the stigma 48 hours after pollination.The integrity of oval embryo sac was better.The observation of ovary development slices showed that compared with artificial pollination,the ovules developed faster after honeybee pollination,and the ovules developed into more seeds in the later stage.The inflorescence and flower fruit setting rate of artificial pollination and honeybee pollination could achieve the production needs.After honeybee pollination,the contents of malic acid,citric acid,and quinic acid decreased significantly,the contents of glucose,sucrose,and sorbitol increased significantly,and the content of total phenols increased significantly.By using honeybees to pollinate pear trees,pollen germinated and reached the base of the ovary earlier than artificial pollination,it could also significantly improve the fruit quality of pears.
万方数据
维普
