中文摘要：为了确定促进水稻条纹叶枯病流行的生物与非生物因子，作者于2002年至2012年间对中国江苏地区水稻条纹病毒（RSV）、病毒介体昆虫（灰飞虱）以及气候条件进行了监测。结果发现，平均的病害严重程度、病害发病率和灰飞虱带毒率在2004年达到峰值，然后逐渐下降。RSV的病害严重程度与介体昆虫带毒率呈正相关，但与昆虫种群密度不呈正相关，这表明在RSV流行中起着重要作用的是被病毒侵染的介体昆虫的百分比，而不是介体昆虫的绝对数量，可将染毒介体昆虫百分比用于病害的预测。本研究发现的病害严重程度与带毒率的正向关系表明，局部侵染可能是RSV主要的初侵染源。在影响RSV流行的两个主要气候因子中，温度比降雨量的作用更大。
外文摘要：Rice stripe virus (RSV), its vector insect (small brown planthopper, SBPH) and climatic conditions in Jiangsu, China were monitored between 2002 and 2012 to determine key biotic and abiotic factors driving epidemics of the disease. Average disease severity, disease incidence and viruliferous rate of SBPH peaked in 2004 and then gradually decreased. Disease severity of RSV was positively correlated with viruliferous rate of the vector but not with the population density of the insect, suggesting that the proportion of vectors infected by the virus rather than the absolute number of vectors plays an important role in RSV epidemics and could be used for disease forecasting. The finding of a positive correlation of disease severity and viruliferous rate among years suggests that local infection is likely the main source of primary inoculum of RSV. Of the two main climatic factors, temperature plays a more important role than rainfall in RSV epidemics.
作者：He, Dun-Chun；Zhan, Jiasui；Cheng, Zhao-Bang；等
作者单位：福建农林大学
期刊名称：SCIENTIFIC REPORTS
期刊影响因子：5.228
出版年份：2016
出版刊次：2
点击下载：灰飞虱带毒率是衡量水稻条纹叶枯病流行的一个很好的指标