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1982至1985年进行了黄瓜霜霉菌生理分化研究,应用室内离体叶接种和田间病情调查相结合的方法;采集辽宁省七个城市和北方八个城市黄瓜霜霉菌标样,在75个黄瓜品种上进行接种鉴定和自然观察,并在海南岛进行自然诱发观察,结果发现,各地黄瓜霜霉菌的致病性基本一致,不存在生理分化现象。本试验提出利用病斑类型、病斑大小、产孢量、潜育期及叶片气孔密度可试作为黄瓜霜霉病品种抗性接种鉴定的指标。
From 1982 to 1985, the physiological differentiation of cucumber downy mildew was studied, and the combination of indoor leaf inoculation and field investigation was used. The standard samples of cucumber downy mildew in seven cities of Liaoning Province and eight northern cities were collected. On the identification and natural observation of inoculation, and natural induced observation in Hainan Island, the results showed that the pathogenicity of cucumber downy mildew around the same, there is no physiological differentiation. This study proposed the use of lesion type, lesion size, sporulation, incubation period and leaf stomatal density can be used as indicators of cucumber downy mildew resistant inoculation identification.