广东高州普通野生稻稻瘟病抗性鉴定  

Identification of Rice Blast Resistance of Oryza rufipogon Griff. Indigenous to Gaozhou,Guangdong Province

作　　者：潘大建[1] 范芝兰[1] 朱小源[2] 李晨[1] 周汉钦[1] 陈建酉[1] 杨健源[2] 

机构地区：[1]广东省农业科学院水稻研究所,广州510640 [2]广东省农业科学院植物保护研究所,广州510640

出　　处：《植物遗传资源学报》2008年第3期358-361,共4页Journal of Plant Genetic Resources

基　　金：广东省农业重点项目(粤财农[2005]312号,粤农函[2005]621号);广东省科研条件建设项目(2006B60101021);国家自然科学基金委员会-广东省人民政府联合基金项目(U0631003);国家科技支撑计划子课题(2006BAD13B01-11)

摘　　要：在苗期采用人工接种稻瘟病混合菌株对108份高州普通野生稻样本进行了稻瘟病抗性鉴定，经过初鉴和复鉴，筛选出抗级为2—3级的抗病样本3份；利用我国稻瘟病菌5个菌群7个生理小种22个菌株对初鉴表现中抗的2份种茎样本B35和C1的各2个F1单株进行苗期抗谱测定，获得全群抗性频率分别达到86．36％和81．82％的材料各1份。本鉴定结果可供高州野生稻资源的进一步深入研究和开发利用参考。The resistance of 108 accessions of Oryza rufipogon indigenous to Gaozhou, Guangdong Province to rice blast （Magnaporthe grisea） was identified. Three accessions with rice blast resistance were screened out by artificial inoculation with mixture of blast isolates at seedling stage. Four accessions were tested for resistance spectrum with 22 races belonged to 5 different groups of Magnaporthe grisea in China. Two accessions were obtained with 86. 3% and 81.82% resistance frequencies to the tested isolates respectively. The result may provide reference for further study and utilization of the wild rice germplasm in Gaozhou.

关 键 词：普通野生稻 稻瘟病 抗性 鉴定 

分 类 号：S511.9[农业科学—作物学] S435.111.4