广西罗汉果病毒病发生情况调查

Investigations of the virus disease of Siraitia grosvenori in Guangxi

2002年对广西5个县9个乡(镇)74309株罗汉果病害调查明确,传统种植的罗汉果病毒病发病率平均为52.8％,严重的达100％;采用组培苗种植的病毒病发病率平均为13.9％,重病的达63.0％。传统的种薯种植,品种退化,人工抹芽、授粉,蚜虫传毒,以及果园附近插花种植病毒寄主植物,是广西罗汉果种植区罗汉果病毒病发生严重的原因。

The virus disease of Siraitia grosvenori is one of the most important diseases in Guangxi. Occurrence of the disease in 9 towns of Yongfu County, Guangxi, was investigated in July and August, 2002. 74 309 plants were detected. The result indicated that the plants grown from tuber were seriously infected by virus, and the average of the disease incidence was 52.8% . But the disease was reduced in tissue culture plant, the disease incidence was 13.9% . Reason for the disease occurred seriously in Guangxi was also discussed in this paper.