農(nóng)業(yè)植物病理學(xué)試卷

1、農(nóng)業(yè)植物病理學(xué)試卷（一）一、單項選擇題一、單項選擇題1Wheatstriperustcausedby().A.PucciniastriifmisB.PucciniareconditaC.PucciniagraminisD.Uromycesappendiculatus2.Gaeumannomycesgraminisisthepathogenof().A.wheatleafblightB.wheatsharpeyespotC.wheatta

2、keallD.wheatrootrot3.Nthernleafblightofmaizecausedby().A.ExserohilumturcicumB.BipolarismaydisC.CercospamaydisD.Curvularialunata4.PearscabinChinawascausebyA.VenturianashicolaB.VenturiapirinaC.VenturiainaequalisD.Spilocaea

3、pomi5.Lateblightdiseaseofpotatothemostdevastatingdiseaseofpotatoesinthewldcausedby().A.PhytophthainfestansB.PhytophthacapsiciC.PhytophthamelonisD.Phytophthaparasitica6.Thepathogenofcucumberdownymildewis().A.Peronospapara

4、siticaB.PeronospamanschuricaC.PseudoperonospacubensisD.Plasmoparaviticola7.Kiwibacterialcankercouldinfectmanypartsofplantbutnot().A.vineB.leafC.flowerD.root8.TMVcanattackawiderangeofplantsbutitcan’tinfect().A.tomatoB.egg

5、plantC.cucumberD.spinach9.Riceblastcausedby().AXanthomonasyzaeBPyriculariagriseaCBipolarisyzaeDRhizoctoniasolani10.Tomato()iscausedbythefungusBotrytiscinerea.A.leafmoldB.graymoldC.earlyblightD.lateblight11.桃縮葉病在春末夏初葉片表面長

6、出的一層灰白色粉狀物，為病菌的（）。A夏孢子堆B分生孢子堆C子囊層D菌絲層5小麥紋枯病是靠氣生菌絲在田間擴展。（√）6蘋果樹腐爛病病部枝干在潮濕情況下涌出桔黃色的卷須狀物是冬孢子角。（）7玉米瘤黑粉病為苗期侵染的系統(tǒng)性病害。（）8小麥赤霉病有再侵染，但在病害流行上不重要。（√）9番茄葉霉病只危害葉片，不危害其他部位。（）10十字花科蔬菜的軟腐病和根腫病均是由細(xì)菌侵染所致。（）四、簡答題四、簡答題（任選7題用英文或中文作答，每小題6分，共

7、42分）1從癥狀特點、發(fā)生時期及為害部位等方面區(qū)別水稻紋枯病和稻瘟??？答案要點答案要點：1.水稻紋枯病（1）癥狀特點：產(chǎn)生云紋狀病斑，后期產(chǎn)生菌核；（1分）（分）（2）為害部位：葉鞘；（1分）分）（3）發(fā)生時期：從苗期到穗期均可發(fā)生。（1分）分）2.稻瘟病（1）癥狀特點：形成的病斑有明顯的褐色邊緣，中央灰白色；（1分）（分）（2）為害部位：葉片、葉枕、穗頸、谷粒；（1分）（分）（3）發(fā)生時期：整個生育期均有發(fā)病。（1分）分）2Whata

8、dviceshouldyougivetofarmersiftheyfoundFusariumwiltVerticilliumwiltincottonfield.答案要點答案要點：（1）Plantquarantineshouldbeenhancedinthediseasefreefield.（1分）（2）Cultivatingplantingdiseaseresistantvarieties.（1分）（3）Croprotation.（1分

9、）（4）Strengthenthecultivationmanagement.（1分）（5）Fungicidecontrol.（1分）（6）Biologicalcontrol.（1分）3Pleasedistinguishthedifferencesofsymptombetweenpearscabapplescab.答案要點答案要點：Applepearscabcanbeobservedonleavespetiolesblossomssep

10、alsfruitpedicelslessfrequentlyonyoungshootsbudscales.（1）Lesionsonleavespetiolesbeginasroundbrownishspotsthateventuallybecomevelvetyinappearance.Withintheselesionsconidiaareproduced.Laterintheseasonsmallspotscanbeobserved

11、onthelowersurfaceoftheleaves.Theseareusuallytheresultoflatespringearlysummerinfections.；（3分）（分）（2）Thefirstlesionsareoftenfoundonthelowersurfacesofleavesastheyemergeareexposedtoinfectioninthespring.Laterastheleavesunfoldb

12、othsurfacesareexposedcanbecomeinfected.Younglesionsarevelvetybrowntoolivegreenhavefeatheryindistinctmargins.Withtimethemarginsbecomedistinctbuttheymaybeobscuredifseverallesionscoalesce.（3分）分）4Pleasesummerizethecontrolmet

13、hodsofcucumberdownymildew.答案要點答案要點：（1）diseaseresistantvarieties；（1分）（2）Thecontroltemperaturehuityingreenhouse；（2分）（3）Strengthenthecultivationmanagement:inceasingCO2applicationoffoliagefertilizer；（2分）（4）Fungicidecontrol.（