英德
有道
百度
谷歌
图片
维基
百科
初侵染
[植保] primary infection
- 结果表明，大麦赤霉病抗性除了抗初侵染类型外还存在抗扩展类型。
The result showed there is the resistance to spread as well as to initial infection of Fusarium head blight in barley. - 卵孢子是初侵染的重要来源，华北和东北各主要白菜产区的白菜病叶和菜田土壤中存在有大量霜霉病菌的卵孢子。
Overwintered as well as oversummered oospores were considered to be the most important primary source of infection of this disease in Peking, Tientsin and other localities of North China. - 本文从玉米矮花叶病的初侵染来源、发病症状和抗性遗传特性，分析造成山西中部盆地1998年玉米矮花叶病大发生的原因。
This report discussed the origination of primary infection, disease symptom and resistant hereditary feature of MDMV. We analysed the cause of MDMV occurred in middle shanxi basin in 1998.
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