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(xiàng)選擇題一、單項(xiàng)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(zhǎng)

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(kuò)展。（√）6蘋果樹(shù)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(jiǎn)答題四、簡(jiǎn)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(diǎn)、發(fā)生時(shí)期及為害部位等方面區(qū)別水稻紋枯病和稻瘟?。看鸢敢c(diǎn)答案要點(diǎn)：1.水稻紋枯?。?）癥狀特點(diǎn)：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(shí)期：從苗期到穗期均可發(fā)生。（1分）分）2.稻瘟病（1）癥狀特點(diǎn)：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(shí)期：整個(gè)生育期均有發(fā)病。（1分）分）2Whata

8、dviceshouldyougivetofarmersiftheyfoundFusariumwiltVerticilliumwiltincottonfield.答案要點(diǎn)答案要點(diǎn)：（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(diǎn)答案要點(diǎn)：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(diǎn)答案要點(diǎn)：（1）diseaseresistantvarieties；（1分）（2）Thecontroltemperaturehuityingreenhouse；（2分）（3）Strengthenthecultivationmanagement:inceasingCO2applicationoffoliagefertilizer；（2分）（4）Fungicidecontrol.（