云南农业大学学报2012，Vol.27Issue(5)：653-657,5.DOI:10.3969/j.issn.1004-390X(n).2012.05.006
云南水稻条纹病毒致病性分化及水稻品种抗病性鉴定
Pathogenic Differentiation of Rice stripe virus and Identification of Disease Resistance of Main Rice Varieties to RSV in Yunnan
摘要
Abstract
Rice stripe disease, which is transmitted by Laodelphax striatellus, is one of the main diseases in the middle and western Yunnan, and caused severe lose on rice in recent years. Resistance i-dentification of main rice cultivars to rice stripe and the pathogenic differentiation of Rice stripe virus (RSV) from Yunnan were conducted with biological inoculation. The results indicated that some ja-ponica rice varieties showed high sensitivity to RSV, while most of the indica rice varieties showed resistant or immune to RSV among the 12 tested rice varieties. Pathogenic differentiation of five Yunnan RSV isolates collected from serious disease areas was identified, and no distinct difference was detected when the isolates were inoculated onto rice. However, the isolates showed different pathogenicity on wheat and maize. The 5 RSV isolates could be divided into three groups. The first group included Chuxiong isolate, which showed the highest degree of pathogenicity. The second group contained isolates of Baoshan, Dali and Luquan, showed middle degree of pathogenicity. LL isolate belonged to the third group, showed lowest degree of pathogenicity.关键词
水稻条纹病毒/致病性分化/抗病性鉴定/品种Key words
Rice stripe virus/ Pathogenic differentiation/ resistance identification/ varieties分类
农业科技引用本文复制引用
吴维,龙亚芹,谭冠林,李凡..云南水稻条纹病毒致病性分化及水稻品种抗病性鉴定[J].云南农业大学学报,2012,27(5):653-657,5.基金项目
云南省自然科学基金(2003C0042M). （2003C0042M）
