論文 參考文獻(xiàn)的標(biāo)準(zhǔn)方法 (2)

1、西南林業(yè)大學(xué)本科畢業(yè)（設(shè)計(jì)）論文（屆）題目：教學(xué)院系環(huán)境科學(xué)與工程學(xué)院專業(yè)水土保持與荒漠化防治學(xué)生姓名陳小婷指導(dǎo)教師姓名姓名（職稱）姓名（職稱）評閱人姓名（職稱）年月日此表格不允許調(diào)整，只需把自己的信息粘貼在相應(yīng)位置，選擇“匹配目標(biāo)格式”。題目若寫不下可將下一行加下劃線第一導(dǎo)師姓名需本人親筆簽，不能打印StudyonSaltToleranceofElymusspp.inSeedlingStageChenXiaoting（Collegeo

2、fEnvironmentalScienceEngineeringSouthwestFestryUniversityKunming650224）ABSTRACT:ElymusL.isoneofthemostimptantgenusofPoaceaefamilyinmanygrasslsofChinaincludesmanyeconomicallyimptantfagegrassesaswellasspecieswithagronomica

3、llyvaluableactersfexampleswideadaptationgoodfeedqualitydroughtcoldtolerancehighfageseedproductionunderstresses.20seedsampleswerecollectedfromnaturalpopulationsatvariouslocationsinChinawerecultivatedundersoillessculturesd

4、esignedtohavedifferentsalinitylevels(00.4%0.6%0.8%1.0%NaCl)perfmancesofthematerialswereevaluatedintermsofseedlingheighttillernumbershootrootdryweightplantsurvivalratecellularmembrancepermeabilityofleafroottissuesconcentr

5、ationoffreepraline.Theresultsaresummarizedasfollows:Withtheincreasingsaltstressallthematerialsshowedadecreasetovariousextentinplantheighttillernumbershootrootdryweightsurvivalrate.Atlowersaltstressnosignificantdifference

6、amongthematerialsincellularmembrancepermeabilityweredetectedbutthesaltsensitivematerialsshowedasignificantincreaseincellularmembrancepermeabilityinresponsetoincreasedsaltstress.Theaccumulationoffreeprolineincreasedinallt

7、hematerialswithasignificantlyhigherincreaseinsalttolerantgroupthanthesensitive.ThecomprehensiveappraisalresultedinasalttolerantgroupincludingG13G16G12asensitivegroupincludingG9G10G8aintermediategroupincludingtheothersacc