试材为长春密刺、叶三、津研二号、海城感王四个品种。采用秋载的方法。授粉期在7月22～23日,早6～8时进行,第2天再授一次,(在雌雄花开放之前套袋和扎花,以防杂交)。种瓜在10月11日采收。结果:两次授粉较一次授粉显著地提高黄瓜的结实力,两次授粉单瓜种子数为一次 Test materials for the Changchun sting, leaves three, Jin research on the 2nd, Haicheng sense of the four varieties. Using autumn load method. The pollination period will take place from July 22 to July 23, 6 to 8 am, and will be given again on the second day (bagging and sticking before the male and female flowers bloom to prevent hybridization). The melons are harvested on October 11. Results: Compared with the two pollination, pollination significantly increased the cucumber seedling strength, the number of pollinated single melon seeds twice