云南稻作资源特征特性及生态地理分布研究 Ⅶ.稻白叶枯病抗性资源的多样性分布研究  

Characteristics and Geographical Distribution of Yunnan Crops Resources Ⅶ.Study on Distribution Diversity of Rice Bacterial Leaf Blight Resistance Germplasm

作　　者：奎丽梅[1] 卢义宣[1] 苏艳[2] 曹永生[3] 刘晓利[1] 王丽萍 陈晓艳[5] 杨忠义[5] 

机构地区：[1]云南省农业科学院粮食作物研究所,云南昆明650205 [2]云南省农业科学院质量标准与检测研究所,云南昆明650205 [3]中国农业科学院作物科学研究所,北京100081 [4]玉溪市红塔区农业技术推广站,云南玉溪653100 [5]云南省农业科学院生物技术与种质资源研究所,云南昆明650223

出　　处：《西南农业学报》2009年第6期1501-1504,共4页Southwest China Journal of Agricultural Sciences

基　　金：国家科技基础条件平台重点项目(2005DKA31800-3);云南省科技攻关及高新技术发展计划项目(2006NG03);国家科技支持计划(2006BAD0101-1;2006BAD0101-7)

摘　　要：采用GIS、BioDiversity等技术分析了4062份云南地方稻种资源白叶枯病抗性多样性在云南不同气候类型和各类稻区的表现。结果表明,稻白叶枯病抗性与气候环境因素呈显著相关。稻白叶枯病抗性多样性从南亚热带→北亚热带→中亚热带→北热带→南温带→中温带逐渐减小,反之增大;随海拔的升高、温度的降低而减少,反之增大。亚热带是稻白叶枯病抗性多样性富集气候带。单双季籼稻区和水陆稻区的稻白叶枯病多样性高于其他稻作区,稻作复杂地区稻白叶枯病抗性多样性较高。发掘了198份值得研究利用的优异的稻白叶枯病抗性资源。4062 accessions of Yunnan local rice varieties were analyzed with the technique GIS and Biodiversity, based on the copious climat- ic types and rice regions of Yunnan. It was indicated that climatic types and rice regions were significantly correlated with rice bacterial leaf blight resistance. The diversity of rice bacterial leaf blight resistance decreased from the south subtropics, north subtropics, medium subtropics, north tropic, south temperate zone to medium temperate zone, and increased in the other way round. The diversity decreased with the increasing of altitude and the reduction of temperature. The diversity of rice bacterial leaf blight resistance were mainly concentrated in the sub- tropical zone. There are abundant diversities in single or double cropping Indica rice zone and upland or lowland rice zone. 198 varieties had been identified as elite resistance germplasm which were resistant to rice bacterial blight resistance.

关 键 词：稻白叶枯病抗性 资源 多样性 生态地理分布 

分 类 号：S435.111.47[农业科学—农业昆虫与害虫防治]