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一、前言黄瓜是西北主要蔬菜之一,但因霜霉病的为害十分严重,常使黄瓜不能正常生长,毫无收获,我们于1955年搜集了14个品种,在西北农学院蔬菜区进行了品种抗病观察和防治试验,结果以线黄瓜的产量为最高,抗病力也较强,北研鞭瓜次之,广东黄瓜、宁阳刺瓜、分叉黄瓜抗病力也强,药剂防治以铜皂液、波尔多液为有效、搭架的在产量上有显著的提高,罹病也较轻,本年就在这基础上,共搜集了45
I. Introduction Cucumber is one of the major vegetables in Northwest China. However, the damage caused by downy mildew is very serious. Cucumber can not grow normally and there is no harvest. We collected 14 varieties in 1955 and conducted the harvest in the vegetable area of Northwest Agricultural College The results showed that the yield of cucumber was the highest, the resistance to disease was also strong, followed by the north guinea pig, the cucumber of Guangdong and the cucumber of Ningyang also had strong disease resistance, cucumber Soap liquid, Bordeaux mixture is effective, the yield of the scaffolding is significantly improved, and the incidence of disease is also lighter. On this basis, this year a total of 45