【摘要】 本文报导了1979—1982年对浙江省甘蔗花叶病毒的分布、传播、电镜观察、防治方法和病害对产量、质量影响的研究。结果表明,浙江省甘蔗花叶病毒至少存在两个株系,因均不能侵染约翰逊草(Sorghum halepenseL.),所以不是ScMV-I株系和MDMV-A株系。义乌地区花叶病的流行是和新植蔗区每年切种繁殖有关。种蔗带毒是ScMV的主要来源,蚜虫在传播流行上并不重要。人工汁液接种有30％发病。 受甘蔗花叶病毒感染的细胞经电镜检验,发现有线条状病毒粒子和风轮状及环状的细胞质内含体。 通过选种,可以将花叶病率压低到5％以下,鲜蔗和糖产量均有提高。地膜覆盖虽然不能压低发病率,但具明显的增产作用。温汤浸种的有效温度接近蔗芽致死的限温点,故不宜推广应用。药剂治蚜防病效果不显著。义乌地区现有栽培的品种虽均感病,但品种间的发病率和严重度有差异。更多还原

【Abstract】 30% of artificial inoculation for ScMV infcctivity transmitted tests wore successful at least two strains of ScMV were found to occur in Zheji-ang province as they could not infect Johnson grass ( Sorghum halepense L. ), they did not belong to MDMV-A and ScMV-I.Under electron microscope filamentous particle and the pin wheel or scroll inclusions in systemically infected cells could be observed.The prevalence of sugarcane mosaic epidemics in Yi-wu county might be chiefly due to the frequent use of cane stem cuttings as seed stocks from year to year, resulting in the progressive increase in the ensuing "seed" cane carrying the virus. The mosaic virus carrier "seed" cane is the primary infectious source of ScMV. Aphis is not important in transmitting the disease in this district,artificial inoculation resulted in 30% incidence of the disease. In practice "seed" selection might be used to effectively decrease the disease incidence to less than 5%, and at the sametime increase the fresh weight and sugar content of the cane.更多还原