茄子氮高效基因型篩選及氮效率基因型差異機(jī)理的研究.pdf

1、河北農(nóng)業(yè)大學(xué)碩士學(xué)位論文茄子氮高效基因型篩選及氮效率基因型差異機(jī)理的研究姓名：趙付江申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：蔬菜學(xué)指導(dǎo)教師：申書興張成合20080601ScreeningofEggplantGenotypesforHighNitrogenUseEfficiencyandstudyingofMechanismofDifferentNitrogenUseEfficiencyAuthor：ZhaujiangMajor“Olericulture

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

3、iencyineggplant，F(xiàn)ieldexperimentandtestinganalysisareconductedtostudythegenotypicvariationinnitrogenuseefficiencyinteneggplantgenotypesbyanalyzingfruityield，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