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1、中国水稻科学(ChinJRiceSci),2013,27(3):280-286http://www.ricesci.cn280DOI:10.3969/j.issn.1001-7216.2013.03.008盐胁迫对不同水稻品种光合特性和生理生化特性的影响徐晨1凌风楼2徐克章2武志海2刘晓龙2安久海2赵兰坡3,*(1吉林农业大学中药材学院,吉林长春130118;2吉林农业大学农学院,吉林长春130118;3吉林农业大学资源与环境学院,吉林长春130118;*通讯联系人,E-mail:zhaolanpo12@
2、163.com)EffectofSaltStressonPhotosyntheticCharacteristicsandPhysiologicalandBiochemicalTraitsofDifferentRiceVarietiesXUChen1,LINGFeng-lou2,XUKe-zhang2,WUZhi-hai2,LIUXiao-long2,ANJiu-hai2,ZHAOLan-po3,*2(1CollegeofTraditionalChineseHerbs,JilinAgriculturalUn
3、iversity,Changchun130118,China;CollegeofAgronomy,JilinAgriculturalUniversity,Changchun130118,China;3CollegeofResourcesandEnvironment,JilinAgriculturalUniversity,Chang-chun130118,China;*Correspondingauthor,E-mail:zhaolanpo12@163.com)XUChen,LINGFenglou,XUKe
4、zhang,etal.Effectofsaltstressonphotosyntheticcharacteristicsandphysiologicalandbiochemicaltraitsofdifferentricevarieties.ChinJRiceSci,2013,27(3):280-286.Abstract:Withtwosalt-tolerantricevarietiesandtwosalt-sensitivevarietiesasmaterial,theinfluenceofsaltst
5、ressonplantbiomassaccumulation,photosyntheticcharacteristicsandtheotherphysiologicalcharacteristicswasstudied.Theresultsshowedthatthedryweightandfreshweightofshootandrootofsalt-tolerantricevarietiesandsalt-sensitivevarietiesweredeclinedundersaltstress.The
6、freshweightofshootanddryweightofrootsweredeclinedsignificantly.Thenetphotosyntheticrate,stomatalconductance,transpirationandapparentmesophyllconductanceweredeclinedtodifferentdegreesundersaltstress.ThedropofPn,Gs,TrandPn/Ciofsalt-tolerantvarietieswaslesst
7、hansalt-sensitivevarieties.Thewateruseefficiency(WUE)ofsalt-tolerantvarietieswashigherthanthatofsalt-sensitiveonesatthesametime.TheintercellularCO2concentration(Ci)ofsalt-tolerantvarietiesandsalt-sensitiveoneswasnotchangedobvirouslyundersaltstress.Thestom
8、atallimitationpercentage(Ls)undersaltstresswaslowandthedifferenceamongthevarietieswasnotsignificant.Andapparentmesophyllconductance(Pn/Ci)waschangedsignificantly.ThedeclineofPnresultedfromthedeclineofRuBPCaserathert
