海南省热带牧草病害调查及病原菌初步鉴定-论文.pdf

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1、热带作物学报2014，35(5)：967—973ChineseJournalofTropicalCrops海南省热带牧草病害调查及病原菌初步鉴定郑丽，易小平，文衍堂，李志阳，李静，何华玄，覃新导丰中国热带裳农业科誊学院热带譬能矗源生态弈研究中慧心广／东水广州川510140中国热带农业科学院热带生物技术研究所．海南海12571101海南大学环境与植物保护学院．海南海口570228中国热带农业科学院热带作物品种资源研究所．海南儋州571737摘要通过对海南省14种热带牧草病害的田间调查，结果显示，常发生的病害有叶斑病、花／果／茎腐病、枝枯病等，病害类型有

2、39种。分离鉴定的结果表明，真菌性病害32种，细菌性病害1种，根结线虫引起的病害1种，病毒类病害3种，植原体病害1种，寄生性藻类病害1种。初步查明海南省主要热带牧草病害的种类和为害状况，其中柱花草为害最为严重的病害为炭疽病(CoUetotrichumgloeosporioidesPenZ．)．王草则以瘟病【Pyriculariagr／sea(Cke．)Sacc1发生最为严重，其他牧草以叶斑病为害居多，为害水平中等至轻微。关键词海南省；热带牧草；病害调查；病原菌中图分类号S432文献标识码APreliminaryReportonInvestigatin

3、gDiseasesandIdentifyingPathogensonTropicalPastureinHainanZHENGLi，YIXiaoping~，WENYantang。，LIZhiyang，LIJing，HEHuaxuan，QINXindao1Guan@houExperimentalStation,ChineseAcademyofTropicalAgriculturalSciences／TropicalEnergyandEcologyResearchCentre，ChineseAcademyofTropicalAgriculturalScie

4、nces，Guangzhou，Guangdong,510140,China2InstituteofTropicalBioscieneeandBiotechnology,ChineseAcademyofTropicalAgriculturalSciences，Haikou,Hainan，571J01，China3DepartmentofPlantPathology,CollegeofPlantProtection,HainanUniversity,Haikou,Hainan570228,China4TropicalCropsGeneticResourc

5、esInstitute，ChineseAcademyofTropicalAgriculturalSciences，Danzhou,Hainna571737-ChinaAbstractBasedoninvestigating14kindsoftropicalforagegrassdiseasecensusinHainanProvince，wefoundthat39kindstropicalforagediseaseswhichmost．commonlyoccurred，suchasleafspot，blighofflower／fruit]stemand

6、rotofbranches，etc．Viarelevantmethodsfortheseparation．itshowedthattIlerewere32kindsoffungaldiseases，1kindofbacterialdisease，1kindofrootknotnematodediseasecaused，3kindsofviraldiseases．1kindofplantchlamydialdiseaseand1kindofparasiticdisease．Itpreliminarilygotclearthemainspeciesand

7、damageconditionsindifferentpastureofHainanProvince，andthemostseriousdiseasesofStylosantheswasanthracnose(ColletotrichumgloeosporioidesPenZ．)，whilePennisetumdiseaseof所iculariagriseaoccursthesame，theotherforagediseasesinthemajoritywithleafspot，weremoderatetominordamageleve1．Keywo

8、rdsHainanprovince；Tropicalforagegrass；Diseaseinvestiga