春小麥對麥長管蚜的抗性及其機理的研究.pdf

1、內蒙古農業(yè)大學碩士學位論文春小麥對麥長管蚜的抗性及其機理的研究姓名：于洋申請學位級別：碩士專業(yè)：農業(yè)昆蟲與害蟲防治指導教師：龐保平20060401StudiesontheResistanceandMechanismofSpringWheattoMacrosiphumAvenae(Homoptera：Aphididae)AbstractMacrosiphumavenae(Homoptera：Aphididae)isanimportantp

2、estofwheatintheworldThechemicalshavemainlybeenusedtocontrolthewheataphidsforalongtime，whichnotonlypollutestheenvironmentbutalsocausesthepeststopmducetheresistancetopesticides，andkillsnaturalenemiesOccurringandharmingofth

3、ewheataphidshavenotdecreased，madthereisamoreserioustrendinstead。InsectresistantcnltivalsaleoneofthemosteconomicandeffectivemeasurestocontrolwheataphidsHowevertherearerareresearchesontheresistanceto印hidsandmechanismofthes

4、pringwheatuntilnOWThereforetheresistanceandmechanismof27cultivarsorlinesofspringwheattoMavenaeiSstudiedinordertoestablishanessentialfoundationforfu坩lerselectionandutilizationofinsectresistantcultivarstoconff01MavenaeIndo

5、orresearchindicatesthatthereareremarkabledifferencesinnonpreference，antibiosisandtolerancetoMavenaerespectivelyamong27cultivarsorlinesofspringwheatseedlings，butnemarkabledifferenceinthetotalresistanceInyoungseedlingstage

6、ofdifferentwheatcultivarsorlines，chlorophyll，solublecandysolubleproteintanninandflavonehaveremarkabledifferences，butnemarkablerelationshipwithnon—preference，antibiosisandtoleranceThefieldplottestshowesthattherealeremarka

7、bledifferencesto^Z口vPn船ingrowthstageamongdifferentwheatcultivarsorlinesAtwheatgrowthstage，raisingexperimentinthelabindicatesthattherearesignificantdifferencestoMcwenQeinthedevelopmentaldurationandmortalityofthenymphae，an

8、dthelongevityandfecundityofadultsamong7cultivarsorlineswithdifferentresistanceTheadultshaveshorterlongevityandminorfecunditywhenrearedontheleavesofhigherresistantwheatvarietiesThesurvivalcurvesfallintoDeeveyIexeeeptforXi

9、nehun6fallingintoDeeveyMTIheintensityofwheatresistanceisYingbaiXinehun602C—MBBafen91Yonglian94Neimail9Menghllalusingtheintrinsicrateofinerease(rm)asanindexofwheatantibiosistoaphidswhichiscorrespondentwell、Ⅳitllthatinfiel

10、dsFieldplottestsindicatesthatthereareremarkabledifferencesinthelossratesofspike，thousandgrainweightandoutputamongdifferentwheatvarietiesorlinesUsingthelossrateofoutputasanindexofthewheattotalresistancetoMavenaetheresulti