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本文报道了山葡萄4个品种、15个品系和1983年以来做的100多个有性杂交组合中的42个组合5222株杂种苗,在霜霉病大发生的1991年感病程度的差异以及气候条件与霜霉病大发生之间的关系。
In this paper, 5222 hybrid seedlings of 42 combinations of 4 varieties of grapevine, 15 strains and 42 more than 100 sexual hybrid combinations made since 1983 were reported, and the difference in the degree of susceptibility to downy mildew occurred in 1991 Relationship between climatic conditions and downy mildew.