‘阳光玫瑰’葡萄病毒病症状差异及其对品质的影响

Difference of Symptoms of Grape Virus Disease and Its Influence on Quality of‘Shine Muscat’

针对‘阳光玫瑰’葡萄病毒病普遍发生的情况,检测了田间植株的病毒种类及其对葡萄产量和品质的影响。结果显示,在显症叶片和健康叶片中均检测到葡萄卷叶相关病毒3(GLRaV-3)、葡萄病毒A(GVA)、葡萄病毒B(GVB)和沙地葡萄茎痘病毒(GRSPaV)4种病毒。对重症、轻症和无症植株的产量和果实品质进行分析发现,重症植株的产量显著低于无症和轻症植株。玫瑰香味有关的橙花醇和香叶醇2种香气物质在3类不同症状表现的植株果实中无显著性差异,而重症植株果实中芳樟醇含量显著高于无症和轻症植株果实。针对病毒病对‘阳光玫瑰’生产造成的严重危害,根据生产经验总结出了两种缓解病毒病的方法可用于指导生产。

In view of the common occurrence of grape virus disease of'Shine Muscat',the types of viruses in field plants and their effects on grape yield and quality were tested.The results showed that four viruses including Grapevine leafroll-associated virus 3(GLRaV-3),Grapevine virus A(GVA),Grapevine virus B(GVB)and Grapevine rupestris stem pitting-associated virus(GRSPaV)were detected in both symptomatic and healthy leaves.The yield and fruit quality of severe symptomatic,mild symptomatic and asymptomatic plants were analyzed.The yield of severe symptomatic plants was significantly lower than that of asymptomatic plants and mild symptomatic plants.There was no significant difference between nerolol and geranyl in the fruits of three types of plants.However,the content of linalool in the fruit of severe symptomatic plants was significantly higher than that of mild symptomatic and asymptomatic plants.In order to reduce the serious harm to the production of'Shine Muscat',two methods were summarized according to the cultivation experience to alleviate viral disease.