西瓜花单性,雌雄同株,为典型的异花授粉作物,花期主要靠蜜蜂等昆虫传粉。但大棚内昆虫活动较少,容易导致授粉不良,坐瓜困难,所以必须进行人工辅助授粉才能保证坐果。为了提高人工授粉效果,授粉时应采取以下技术措施:1选定坐瓜节位西瓜主蔓第1雌花着生节位过低,授粉后所形成的果 Watermelon flowers unisexual, monoecious, is a typical cross-pollinated crops, flowering mainly by bees and other insects pollination. But the insects in the shed less, easily lead to poor pollination, melon production difficulties, it must be artificial assisted pollination to ensure fruit set. In order to improve the artificial pollination effect, pollination should take the following technical measures: 1 selected sit melon node watermelon main vine first male flower abortion node is too low, the fruit formed after pollination