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《nacl脅迫對(duì)辣椒種子、幼苗生長(zhǎng)發(fā)育和葉綠素?zé)晒馓匦缘挠绊憽酚蓵?huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、萬(wàn)方數(shù)據(jù)AbstractEightcapsicumcultivarsarechosetobethematerials,tlleyareMeiJia、ZaoLaWang、QiangFen97301、BaoXi、QiuYan、YiXianTian、FuChengQingJiaoF1andJiangHuanno.2.OurExperimentisdesignedtotestthegerminationrateunderNaCIstress.Accordingtothegerminationpotential,germinationrate,germinationind
2、ex,vitalityindexandrelativerateofsaltinjury,wewillfilterhaloduriccultivarandweaksaltresistancecultivar,Wewillexplorethedifferenceofresistancetosaltinseedlingstagebytestphysiologicalandbiochemicalindexesandchlorophyllfluorescencecharacteristicofthetwokindscultivars.Themainresearchresu
3、ltsareasfollows:ThedegreeoftheNaCIstressinfluenceontheei【ghtcultivarswasdifferent,althoughthegerminationstagewasallapparentlyaffectedbytheNaCIstress.WhentheconcentrationofNaClwas50mmol·L-1thegerminationratewashigherthanthecontrol,whiletheconcentrationof‘NaClwas250mmol·L-l,thephenomen
4、onwasinreverse.HowevertheinfluenceofNaClstressongerminationpotentialwereevenmoreapparent,whentheconcentrationofNaClwasabove150mmol·L-1,itwillpostponethegerminationoftheseeds.Accordingtothecomprehensiveanalysisoftheindexes,wefoundthatQiangFen9730lhasthehighestabilityofNaCltolerance,Me
5、iJia,ZaoJiaoWang,BaoXi,YiXianTian,F(xiàn)uChengQingJiaoF1andJiangHuaino.2comesecond,whileQiuYancomesthird.Duringtheperiodofthepepperseedlingsgrowth,lowNaCIconcentrationhasaneffectonthepartofthepeppervarietiesthatpromotetheplantgrowth,whileastheconcentrationincreasing,theplantwillshowthesym
6、ptomsofNaClinjury.Underthesameconcentration,differentpeppervarietieshavedifferentreflection,whenwithhigherNaCIconcentration,QiangFen97301andMeiJiahavelowerrelativeNaC!injuryrate,whileQiuYanandFuChengQingJiaoFlhavehigherrelativeNaC!injuryrate.UndertheNaCIstress,theactivityoftheprotect
7、iveenzymeSOD,PODandCATallhaveaupwardtendencyinthetwovarietieswhichshowdifferenttolerancetotheNaCI.Whenthestresscometoacertaindegree,theactivityoftheprotectiveenzymedecreased.WhenunderhigherNaClconcentration,theactivityoftheprotectiveIII萬(wàn)方數(shù)據(jù)enzymeSOD,PODandCATintheQiangFen97301whichha
8、veahighertol