茄子氮高效基因型篩選及氮效率基因型差異機理的研究.pdf

1、河北農業(yè)大學碩士學位論文茄子氮高效基因型篩選及氮效率基因型差異機理的研究姓名：趙付江申請學位級別：碩士專業(yè)：蔬菜學指導教師：申書興張成合20080601ScreeningofEggplantGenotypesforHighNitrogenUseEfficiencyandstudyingofMechanismofDifferentNitrogenUseEfficiencyAuthor：ZhaujiangMajor“Olericulture

2、Tutor：ShenshuxingZhangchengheLiqingyun(CollegeofHorticultureAgriculturalUniversityofHebei，Baoding，China∞l∞1)Abstra磚InordertounderstandthecharacterofnitrogenuptakeandutilizationandscreeTlthegenotypesofhighnitrogenuseeffic

3、iencyineggplant，Fieldexperimentandtestinganalysisareconductedtostudythegenotypicvariationinnitrogenuseefficiencyinteneggplantgenotypesbyanalyzingfruityield，nitrogenutilizationefficiencynitrogenresponseandtotalnitrogenTos

4、creeneegplantgenotypeswithhighnitrogenuseefficiencyandcomparetheirdifferences，thesegenotypeswereculturedunderdifferentnitrogenlevdsbysolutioncultureThemechanismofdifferentnitrogenuseeffiencyisuncoveredbyanalyzingthechang

5、esofrootcharacter，nitrogenaccumulationanddistributionineggplantseedlings，whichisimportanttobreedhi曲nitrogenuseefficiencycultivarsThemainresultsobtainedfromtheresearchareshownasfollows。1Thereweresignificantvarialionsinfru

6、ityieldnitrogenutilizationefficiencynitrogenresponsivenessandtotalnitrogenamongdifferenteggplantgenotypesundernormalnitrogenandlownitrogenstressinthefieldexperiment2Thetestedeggplantgenotypescouldbeclassifiedintofivediff

7、erenttypesbasedontheirnitrogenuseefficiencyundernormalnitrogenandlownitrogenstress06991belongedtoHHLHtype氆i曲Nuseefficiencyathighnitrogenlevel，hi曲NUSeefficiencyatlownitrogenlevel)；06—917belongedtoHH—LMtype(hi曲Nuseefficien

8、cyathighnitrogenlevelmidNUSeefficiencyatlownitrogenlevel)；06—961and06—867belongedtoHH—LLtype(highNuseefficiencyathighnitrogenlevel，lowN瑚eefficiencyatlownitrogenlevel)；06972，06947，06—854，06—830and06909belongedtoHM—LLtype(

9、midNuseefficiencyathighnitrogenlevel，lOWNuseefficiencyatlownitrogenlevel)；06910belongedtoHLUtype(10wNUSeefficiencyathi曲nitrogenlevel，lowNuseefficiencyatlownitrogenlevel)3Nitrogenuseefficiencyiscomprisedofnitrogenuptakeef

10、ficiencyandnitrogenutilizationefficiencyThroughpathanalysis，itwasfoundthattheeffectofnitrogenuptakeefficiencyonnitrogenuseefficiencywasmoreimportantthannitrogenutilizationefficiencyundenormalnitrogenandlownitrogenstressi