摘要
【目的】筛选抗黑条矮缩病水稻品种,为抗水稻黑条矮缩病育种提供抗源。【方法】对36份1980～2000年江苏省主栽粳稻品种,57份2001～2008年江苏省主栽粳稻品种,228份2009年江苏省预试、区试粳稻材料,210份珍汕97B/明恢63家系材料及365份连云港市农业科学院新育成稳定粳稻品系进行黑条矮缩病田间自然诱发鉴定。【结果】参试的896份水稻品种(系)中未发现对黑条矮缩病免疫的品种,其中中感以上的品种占81.1%,抗性品种仅占1.8%。不同年份育成的粳稻品种抗性存在差异,近10年育成的抗性强于10年前。连云港市农业科学院近期育成的稳定粳稻品系中,中抗和中感类型所占比例明显高于其他4个群体。在2009年江苏省中试粳稻材料中,中熟中粳类型的发病轻于其他类型。对连云港市水稻条纹叶枯病和水稻黑条矮缩病的关系进行分析,发现水稻黑条矮缩病的发生与抗条纹叶枯病品种的推广种植有一定关系。【结论】获得光身粳等16个抗性较好的水稻黑条矮缩病抗源,可供抗黑条矮缩病育种和抗性机制研究及抗性基因发掘上使用。建议今后江苏省水稻育种中同时兼顾抗条纹叶枯和黑条矮缩病选育。
[Objective]The purpose of the current study was to screen rice cultivars resistant to rice black-streaked dwarf disease（RBSDD） in order to develop breeding source for disease resistance breeding.[Method]The resistance of rice varieties to RBSDD was evaluated under natural field conditions.The evaluated varieties included 36 main japonica rice varieties planted during 1980 to 2000 in Jiangsu,57 main japonica rice cultivars planted during 2001-2008,228 japonica rice materials used in various trials in 2009,210 family materials of Zhenshan 97B/Minghui 63 as well as 365 new japonica rice lines bred by Lianyungang Academy of Agricultural Sciences.[Result]Of 896 tested rice varieties or lines,none was found immune to RBSDD,however,81.1% were found moderately susceptible and only 1.8% were resistant to RBSDD.The level of resistance differed in rice cultivars collected during different years.The cultivars collected during past decade showed high resistance than those of 20 years ago.Amongst recently bred rice varieties from Lianyungang Academy of Agricultural Sciences,the ratio of moderately resistance to moderately susceptible lines was distinctively higher compared to other four groups.Amongst the japonica rice varieties tested in the year 2009 in Jiangsu Province,mid maturing and japonica rice materials showed lower disease incidence compared to other types.After analyzing the relationship between rice strip leaf blight and black-streaked dwarf in Lianyungang,we found that the occurrence of rice black-streaked dwarf had some relaionship with the extended planting of strip leaf blight resistant rice varieties.[Conclusion]Sixteen RBSDD resistant rice cultivars such as Guangshenjin,etc.,can be useful for breeding RBSDD resistant rice cultivars,studying resistance mechanism and exploring resistant gene.A suggestion was given to include both,the rice leaf blight disease and RBSDD resistance in future rice breeding programs in Jiangsu province.
出处
《南方农业学报》
CAS
CSCD
2011年第12期1481-1485,共5页
Journal of Southern Agriculture
基金
国家公益性(农业)行业专项项目(201003031)
江苏省科技支撑计划项目(BE2009385)
江苏省农业科技自主创新资金项目(CX08147)
连云港市科技攻关计划项目(CN0819)
关键词
水稻
水稻黑条矮缩病
水稻条纹叶枯病
抗性鉴定
江苏
Rice cultivars
rice black-streaked dwarf
rice stripe leaf blight disease
resistance identification
Jiangsu province
