小麥品種與小麥條銹病菌小種聚集度分析以及小種動態(tài)預(yù)測研究.pdf

1、中國農(nóng)業(yè)大學(xué)碩士學(xué)位論文小麥品種與小麥條銹病菌小種聚集度分析以及小種動態(tài)預(yù)測研究姓名：胡家懷申請學(xué)位級別：碩士專業(yè)：植物病理學(xué)指導(dǎo)教師：肖悅巖20030501AbstractThedataofplantingacreagesofwheatvarietyandoccuffingfrequencyofphysiologicalraceofPucciniastriifoⅢ括Westfrom1975to2000werecollectedanda

2、nalyzedAggregationindexwasemployedtocharacterizewheatvarietyandracepopulationandtheirspatiotemporalrelationshipByusinghillplotnurseriesinoculatedwithsinglelace，byanalyzingthehistoricaldataofvarietiesresistancetophysiolog

3、icalracePstriiformisandbyexpertevaluationtheapplicablerelativeparasiticfitnessofPstriformiswasobtainedBasedonthesedata，amodelofinteractionbetweenmulti—varietyandmultirace，namedCRDMwasestablishedtoexplorethelikelihoodofpr

4、edictingthedynamicsofwheatyellowrustfungiThedetailresultsareasfollows：1ARercomparingseveralkindsofaggregationindex，anewaggregationindex，Aiwasdefinedbythesquareofmeanandstandardvarianceofthe10foremostracessortedbytheoccur

5、ringfrequencyThatisAi=4MStdTheindexwasnotaffectedby“otherraceandpathotype’’indetectingdataofPstriiformisracepopulationandcouldbetterreflectthedegreeofaggregationofracepopulation2Thetemporalsequencerelationshipoflaceaggre

6、gationCHIveamongGansu，Henan。Hubei，Shandong，SichuanandShanxiprovinceandbetweenwheatvarietyandvacewereanalyzedhyusingcorrelationmethodTheresultsshowedGansuprovincewherePstriiformiscouldeasilymutatewasthesourceplaceofnewphy

7、siologicalraces，Wheatvarietyaggregationaffectedraceaggregation，buttheraceaggregationlaggedbehindwheatvariety，forexample，twoyearsinGansuprovince3Byusingthedataoffieldexperimentandhistoricalaccumulationofwheatvarietyresist

8、ance，the2152combinations’relativeparasiticfitnessamong192variety。24raceswerefiguredoutbythemethodofcomplexdiseaseindexInaddition，expertsofwheatyellowrustdiseaseestimatedtherestofthecombinationsInthisexperiment，weexplored

9、somemethodstousinghistoricaldataAtthesametime，severalmethodsweretriedtoachievemoreapplicabledata，whichestablishedasolidgroundforCRDM4CRDM，amodelofinteractionbetweenmultivarietyandmultiracewasestablishedThedataofthehistor

10、icalraceofwheatyellowrustdisease，theplantingacreagesofthemain192wheatcultivarsandtherelativefitnessof192varieties24mainlacesorpathotypeswereinputintothismodel，andthen，usingVisualbasic60toprogramthismodelandtosimulatethef

11、requencychangeofallthelaceswiththecultivardatabase，thefitnessdatabaseandtheracefrequencydatabaseThepreliminaryrunningresultsshowedthatthismodelcanpreditthetrendofraceoccurringfrequency，althoughitsstructurewassimpleThemos