黄瓜是雌雄同株葫芦科蔬菜,具有无限生长习性。瓜蔓上每3—4节生有一朵雌花,在雌花之间的各节上生有一簇雄花,每簇雄花有10—12朵。如果雄花过多易消耗大量的养分,不利于提高产量。在大棚内利用人工授粉、去雄花的办法比单独人工授粉可获得较好的增产效果,一般可增产25—30％。方法是:在雌花与雄花开 Cucumber is monoecious Cucurbitaceae vegetables, with unlimited growth habits. Guaman born on every 3-4 festival female flowers, in each section between the female flowers have a cluster of male flowers, each male flowers have 10-12 flowers. If too much male flowers easy to consume a lot of nutrients, is not conducive to raising production. Artificial pollination in the greenhouse, the method of male flowers than artificial pollination alone can get a better yield, the general increase of 25-30%. The method is: in the female flowers and male flowers open