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芜菁花叶病毒在油菜不同生育阶段的侵染性有很大差异,以苗期最易被侵染,而成株期抗侵染能力很强。随着植株生育进程,病毒含量由低到高,并分布于各器官。病毒的增殖和运转与植株体内营养物质的积累和运输密切相关。病毒在植株体内的垂直分布情况,随着植株的生长发育,病毒有由下向上输送的趋势。根据病毒的侵染、增殖和运转规律,对防治工作有一定指导意义。
Turnip mosaic virus in rape different stages of infectivity are very different, the most vulnerable to seedling stage of infection, and strong resistance to infection at adult stage. With the plant growth process, the virus content from low to high, and distributed in various organs. The proliferation and operation of viruses are closely related to the accumulation and transport of nutrients in plants. The vertical distribution of the virus in the plant body, with the growth and development of plants, the virus has a downward trend from the bottom. According to the virus infection, proliferation and operation of the law, the prevention and treatment work has some guiding significance.