不同水稻品种对稻纵卷叶螟的抗性与其生理生化机制.研究

《不同水稻品种对稻纵卷叶螟的抗性与其生理生化机制.研究》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、许璐：不同水稻品种对稻纵卷叶螟的抗性及其生理生化机制研究英文摘要英又捅要Inrecentyears，riceleafrolderC，z印r乃口肠c，Dc西聊P西聆口凰(Gtlen6e)outbreal(sinChinahaVeresultedinseriousd锄agetorice．However，causesoftheoutbrea

2、(snotbeenunderstood．Therefore，u11derst2uldingofC肌P锄口凰outbreakmechanismsisofimportantsignifica芏lceforsuSta

3、inablecontroloft}lepest．ThispaperfeViewedt圭leoccu玎encealldoutlb碥出causesoft}lepest，andresis切nceofricetot王1epest．ThepresentinVestigationistoeXaminephysi0109icalandbiochemicalrest锄ceoftheseVeralriceV撕etiescommonlycultiVatedinproductiontothepest，alldtheobjectiVeistopr0Videscien

4、tificinfonllationforbreedingofresistantriceVarietyaIldsustaina_blemanagementoftIlepestarldthemethodofscreeningofresistantv撕etyaccordingt0physiologicalandbiochemicalindicesofriceplant．Experimentalresultsareasf．ollo、Ⅳs：1．Lifb·tabIeparametersofasemi-naturaIpopulationofc咒哆p矗口厶9

5、c，‘口c豇mP‘Z妇l口垴(G{ien6e)ondif&rentriceVarietiesandchangesinsugarcontentinriceplantsafterinsectinfbstationLife叱渺lepar锄eterSofC掰P旃托D凰onflveextendedriceVarieties，Yjm西in9538，Huida09，‰g确in8，Y觚gdao6，a11dShanyou63，werecomparedunderasemi-na：turalpopulation，i．e．，pottedriceplalltscoVe

6、redwithabigcage(1．5mlen舀h×1mwidm×1mheight)underexclusionofnaturalenemies．Thesepar锄etersweresurViValrate，fecundi饥andindexofpopulationtrend(I)．ExperimentalresultsshowedthatmeindexofpopulationtrendofC聊P访刀口，括thatfedonHuidao9w嬲thelowest撇ongthefiVeVarieties，indicatingthatHuidao9w

7、asresistanttotheinsect．ThatonYang删in8、Ⅳasthehi曲est．T11eIValueforYang蜘in8was3．56timeshigherthaIlthatforHuidao9．Thes珈ⅣiValra比ofdifferentdeVelopmentalstages，ratiooffemaleadultstomaleadults(早旧)，pupa、veight，mlnlberofeggslaidbyfemaleadults，andpercentaged锄ageofriceleaVesVariedwith

8、riceVarietieS．Inaddition，thisstudymeasuredchangesinbiochemicalsubstancesinricepl趾ts硪erpestinfestation．TheresultdemonstratedthatsolublesugarcontentinplantsonwhichC肌“砌口Z括larvaefedwasnotsigmficantlydifrerentfordifI'erentVarieties，butwassignificantlydifI’erentcomparedt0control(

9、non．feeding)plants．Thereducedsugarcontentinplantswassignmcamlydifferent锄ongthenVeV