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系统地研究了１０５个欧亚种葡萄品种和７个种内杂（自）交组合并１０２９株Ｆ＿１的霜霉病抗性。结果表明，欧亚种葡萄品种间的霜霉病抗性存在着显著差异，根据其抗病性水平，可将供试品种分为３大类；在所有的自交和杂文组合的后代群体中，都存在着一些抗病植株。由于欧亚种葡萄品种及其自（杂）交后代的霜霉病抗性都呈连续分布，可以认为其抗性受多基因控制，而且在寄主群体中存在着微效抗病基因。
Downy mildew resistance of 1029 F1 strains was systematically studied in 105 European and Asian grape varieties and 7 inbred (self) hybrids. The results showed that there were significant differences in downy mildew resistance between the grape cultivars in Europe and Asia. According to the disease resistance level, the tested cultivars could be divided into three groups. Among all progeny groups , There are some resistant plants. Due to the continuous distribution of the downy mildew resistances of the Eurasian grape varieties and their offspring, it is considered that their resistance is controlled by polygenes and that there is a minor resistance gene in the host population.