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油菜菌核病(Sclerotinia sclerotiorum)是江苏省通州市油菜上的主要病害。多年来病情调查采用普遍率(或称病株率)和严重度(或称病情指数)2个指标。调查普遍率比较方便,而且比较客观。然而严重度的调查存在较大主观性,调查的精确度有时较差,且调查记载烦琐,工作量大。为减轻工作量,减少调查中的人为误差,笔者对油菜菌核病的普遍率和严
Sclerotinia sclerotiorum is the main disease on rapeseed in Tongzhou, Jiangsu Province. Over the years the disease survey using the prevalence rate (or strain rate) and severity (or disease index) two indicators. It is more convenient and more objective to investigate the prevalence rate. However, the severity of the survey there is a greater subjectivity, the accuracy of the survey is sometimes poor, and the investigation records cumbersome, heavy workload. In order to reduce the workload and reduce the human error in the investigation, the author of the rape sclerotinia prevalence and strict