杂种优势已在西瓜生产上作为技术关键广为利用。然而国内外西瓜杂交种子的生产还是沿用人工去雄、套袋、授粉等复杂的工序,工作量大,生产成本高,而且西瓜是多雄花的异花授粉作物,故难以保证杂交种子的纯度。要 Heterosis has been widely used as a technological key in watermelon production. However, at home and abroad, the production of hybrid seeds of watermelon still follows the complicated processes of artificial removal, bagging, pollination, etc., which requires a lot of work and high production costs. Moreover, the watermelon is a cross-pollination crop of many male flowers, which makes it difficult to ensure the purity of the hybrid seeds. want