Observation of Symptoms in Winter Gourd〔Benincasa hispida(Thunb.)Cogn.〕Inoculated with Viruses
YOU Yi1，3，YAN Hui-qiong1，LI Hua-pin1，XIE Da-sen2*
1Laborotory of Plant Virology,College of Natural Resources and Environment,South China
Agriculture University,Guangzhou 510642,Guangdong,China；2Vegetable Research Institute,Guangdong
Academy of Agricultural Sciences,Guangzhou 510640，Guangdong,China;3Floriculture Research
Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,Guangdong,China
Virus disease is an important disease of winter gourd.In the paper,five viruses were artificial inoculated into seedlings of winter gourd,including Zucchini yellow mosaic virus(ZYMV),Watermelon mosaic virus(WMV),Cucumber mosaic virus(CMV),Papaya ringspot virus(PRSV)and Squash mosaic virus(SqMV).The results indicated that all five viruses could infect winter gourd,but their symptoms,disease incidences and onset times were different according to different virus.SqMV symptoms appeared earliest,WMV at lastest.The disease incidences were all below 30 %,ZYMV was 4 %.
