1严格隔离制种田要与其他黄瓜品种隔离500m以上,制种过程中严格拔除杂株和劣株。2开花时间和习性黄瓜开花时间5:00～7:00,6:00～8:00完全开放,温度高时开花早,温度低时开花晚,雄花开放1～2d闭合凋萎,雌花受精后第2天花冠闭合。花粉在雄花开放前1d就有一定的生命力,开花当天,花药开裂时生命力最强。花粉寿命较短,开花后4～5h迅速失去活力。 A strict isolation farming system to isolate more than 500m with other varieties of cucumber, seed production process in the strict removal of hybrid and inferior strains. 2 Flowering time and habits Cucumber flowering time 5: 00 ~ 7: 00, 6: 00 ~ 8: 00 completely open, early flowering at high temperature, late flowering at low temperature, the male flowers open 1 ~ 2d closed withered, female flower after fertilization Day 2 Corolla closed. Pollen in the male flowers open 1d before there is a certain vitality, flowering day, anther strongest vitality. Short pollen life, 4 ~ 5h after flowering quickly lose vitality.