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时间:2017-12-08
《杂交水稻品种(组合)对稻曲病的抗性研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、江西农业大学学报2010,32(4):0718—0722http://xuebao.jxau.edu.enActaAgricuhuraeUniversitatisJiangxiensisE—mail:ndxb7775@sina.sore杂交水稻品种(组合)对稻曲病的抗性研究黄瑞荣,李湘民,华菊玲,马辉刚,邱在辉,梁玉勇,兰波(1.江西省农科院植保所,江西南昌330200;2.江西省农科院水稻所,江西南昌330200)摘要:在江西井冈山和南昌两地稻曲病常发区设置田问自然病圃,鉴定了江西省杂交晚稻区域试验品种(组合)83份和南
2、方杂交晚稻区域试验品种(组合)39份对稻曲病的抗性。结果表明,杂交水稻品种(组合)对稻曲病的抗性存在显著差异,有的表现为高抗,有的表现为高感,但以感病品种居多;其抗性趋势与生育期、水稻类型及配组方式有关,表现为早熟品种优于中迟熟品种;籼型品种优于粳型品种;三系组合优于两系组合。多数品种的抗性两地表现一致,少数存在差异。对比分析了病株率与病丛率之问的关系,推导出对应的病丛率分级标准。关键词:杂交水稻;品种;稻曲病;抗性中图分类号:$431.11文献标志码:A文章编号:1000—2286(2010)04—0718—05Stud
3、iesonResistancetoRiceFalseSmutinHybridRiceVarieties(Combinations)HUANGRui—rong,LIXiang.min,HUAJu.1ing,MAHui—gang,QIUZai—hui,LIANGYu.Yong,LANBo(1.PlantProtectionInstitute,JiangxiAcademyofAgriculturalSciences,Nanchang330200,China;2RiceResearchInstitute,JiangxiAcadem
4、yofAgriculturalSciences,Nanehang330200,China)Abstract:Fieldnaturaldiseasenurserywasestablishedinthefrequent—occurringareasofricefalsesmutinJinggangshanandNanchangregionsofJiangxiProvince,toidenti~resistancetoricefalsesmutinthere-gionaltrialvarieties(combinations)o
5、fhybridlaterice,83fromJiangxiand39fromthesouthofChinarespec—tively.Theresultsshowedthat,thereweresignificantresistancedifferencestoricefalsesmutinthehybridricevarielies(combinations).Someshowedhiresistance,someshowedhJ;ghsusceptibility,butmostlysuscepti—ble.Theres
6、istancetrendswererelevanttogrowthstages,ricetypesandcrosspatterns;early—maturingvarie—tieshadhigherresistancethanmedium—latematuringvarieties,IndicavarietieshadhigherresistancethanJa—ponicavarieties,three—linecombinationshadhigherresistancethantwo—linecombinations
7、.Mostraritieshadthesameresistanceinthetworegions;afewhaddifferences.Thecorrespondingclassificationstandardsofillbundleratewerederived,andtherelationshipbetweenillplantrateandillbundleratewascomparedandanalysed.Keywords:HybridRice;varieties;RiceFalseSmut;resistance
8、收稿日期:2010—05—04修回日期:2010—06—22基金项目:江西省农科院科技创新及成果转化基金资助项目作者简介:黄瑞荣(1964一),男,硕士,研究员,主要从事水稻病害研究,E—mail:huangrr050628@sina.corn。第4期黄瑞荣等:杂交水稻品种(组合)对稻曲病的抗性研究·7
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