水稻品种恶苗病抗性评价与筛选  

Rice Bakanae Disease in Rice Varieties:Resistance Evaluation and Screening

作　　者：于艳敏[1,2] 武洪涛 刘海英[1,2] 徐振华 吴立成[1,2] 杨忠良 张书利[1,2] 高大伟 闫平[1,2] YU Yanmin;WU Hongtao;LIU Haiying;XU Zhenhua;WU Licheng;YANG Zhongliang;ZHANG Shuli;GAO Dawei;YAN Ping(Biotechnology Institute of Heilongjiang Academy of Agricultural Sciences/Crop and Livestock Molecular Breeding Laboratory of Heilongjiang,Harbin 150028,Heilongjiang,China;Northeast Center of National Salt-alkali Rice Technology Innovation/Heilongjiang Engineering and Technology Research Center of Rice Molecular Breeding,Harbin 150028,Heilongjiang,China)

机构地区：[1]黑龙江省农业科学院生物技术研究所/黑龙江省作物与家畜分子育种实验室,哈尔滨150028 [2]国家耐盐碱水稻技术创新中心东北中心/黑龙江省水稻分子育种工程技术研究中心,哈尔滨150028

出　　处：《农学学报》2024年第7期1-5,共5页Journal of Agriculture

基　　金：黑龙江省农业科学院级课题项目(2020FJZX053);黑龙江省农业科学院院级课题应用研发项目(2021YYYF053);黑龙江省重点研发计划(创新基地)(J020238J29-1);国家现代农业产业技术体系五常综合试验站(CARS-01-59)。

摘　　要：为了探讨黑龙江省南部稻区水稻品种对恶苗病的抗性级别及水稻恶苗病田间发病情况,筛选水稻恶苗病抗性品种,采用芽期人工接种的方法,调查分析了60份常规粳稻田间恶苗病发病率。结果表明:不同水稻品种恶苗病田间发生程度不同,水稻恶苗病发病率范围为0.8%~39.9%,平均发病率14.6%,筛选到1个高抗水稻品种,26个抗性水稻品种,抗性品种共占73.3%,总体抗感比为11:4,黑龙江省南部水稻品种对恶苗病抗性存在品种间差异,生产上应该提倡种植抗性强的品种以防止病害发生,本研究为病害绿色防控以及水稻恶苗抗病育种提供一定依据。In order to discuss resistance level and field occurrence of rice bakanae disease in the south of Heilongjiang,and screen rice bakanae disease resistant varieties,incidence rate of 60 conventional japonica rice in field were investigated and analyzed,adopting artificial inoculation method.The results indicated that:different rice varieties had different degrees of infestation in the field.The incidence of rice bakanae disease ranged from 0.8% to 39.9%,the average incidence was 14.6%.One rice variety with high resistance and 26 resistant rice varieties were screened out,the resistant varieties accounted for 73.3%,the overall resistance ratio was 11:4.There were differences in rice varieties resistance to rice bakanae disease in southern Heilongjiang Province,resistant varieties should be encouraged to plant to prevent the occurrence of disease in rice production.This study provides some basis for green disease control and rice bakanae disease resistance breeding.

关 键 词：水稻品种 水稻恶苗病 抗性评价 品种筛选 

分 类 号：S511[农业科学—作物学]