论文部分内容阅读
我省保护地和露地黄瓜栽培中,霜霉病是一种发生迅猛、危害较严重的叶片病害,流行年份可减产30～50%.近年来,国内外在黄瓜抗病育种中均把霜霉病列为研究重点.以往我省黄瓜抗霜霉病的鉴定仅局限于自然条件下的成株期鉴定,难以适应目前抗病育种研究和生产实际的需要.为此,我们于1987年进行了黄瓜抗霜霉病苗期鉴定方法的研究,证明子叶点滴接种法可代替成株期鉴定.现简报如下.
Downy cucumber cultivation and protection in our province, downy mildew is a rapid, more serious damage to leaf disease, epidemic year can reduce 30 to 50% .In recent years, the domestic and foreign cucumber disease resistance breeding are downy mildew Disease as a research focus in the past, the identification of cucumber downy mildew in our province is confined to the natural conditions of the identification of the adult stage, it is difficult to adapt to the current disease resistance breeding research and production needs of the actual.To this end, we carried out in 1987 Cucumber anti-downy mildew seedling identification methods to prove that the cotyledon inoculation method can replace the identification of adult plants are now briefed as follows.