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本论文通过实验研究,对黑龙江省白菜种植区提供的材料进行实验。划分出五个致病型,再对五个致病型黑斑病病原菌对大白菜致病性进行研究分析。
In this paper, through experimental research, the materials provided by the cabbage planting area in Heilongjiang Province were tested. Five pathotypes were divided, and the pathogenicity of five pathogenic black spot pathogens on Chinese cabbage was also studied and analyzed.