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从华中油菜产区采集油菜病毒病株标样237个,血清学诊断结果:芜菁花叶病毒(TuMV)侵染株率达66.7％,是引致该区油菜发病的主要毒原,黄瓜花叶病毒(CMV)以及二者复合侵染的均各占5.9％,其他零星发生的病毒共占21.5％。TuMV对不同类型油菜的侵染程度和表现的症状有明显的差异,甘蓝型油菜感染株率为56.0％,病叶症状以枯斑型为主;而白菜型油菜达86.0％,以花叶型为主。油菜病叶症状与侵染病毒的种类没有一致的规律,同一种类病毒在不同植株上可形成完全不同的症状;同一类型症状又可由不同的病毒侵染所致。
A total of 237 rapeseed strains were collected from the rapeseed producing areas in Central China. Serum diagnostic results showed that the infected strains of TuMV were 66.7% The viruses (CMV) and their combined infections both accounted for 5.9% and other sporadic viruses accounted for 21.5%. TuMV had obvious difference on the degree of infection and the symptom of different types of rapeseed. The rate of infected plants in Brassica napus was 56.0%, and the symptom of diseased leaves was mainly spotted type; while that of Chinese cabbage was 86.0% Mainly. The symptoms of rape disease are not consistent with those of infected viruses. The same virus can form completely different symptoms on different plants; the same type of symptoms can be caused by different virus infections.