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1、中国水稻科学(ChinJRiceSci),２０１６,３０(４):３７１－３７９http://www．ricesci．cnDOI:１０．１６８１９/j．１００１Ｇ７２１６．２０１６．５１９４３７１自由空气中CO２浓度和温度增高对水稻种子活力的影响高厚玉１景立权２陈龙１居静１王云霞１,∗朱建国３杨连新２王余龙２(１扬州大学环境科学与工程学院,江苏扬州２２５００９;２扬州大学江苏省作物遗传生理国家重点实验室培育点/粮食作物现代产业技术协同创新中心,江苏扬州２２５００９;３中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京２１０００８;∗通讯联系人,EＧmail:yx
2、wang＠yzu．edu．cn)EffectsofElevatedAtmosphericCO２andTemperatureonSeedVigorofRiceunderOpenＧairFieldConditionsGAOHouＧyu１,JINGLiＧquan２,CHENLong１,JUJing１,WANGYunＧxia１,∗,ZHUJianＧguo３,YANGLianＧxin２,WANGYuＧlong２(１CollegeofEnvironmentalScienceandEngineering,YangzhouUniversity,Yangzhou２２５００９,China;２J
3、iangsuKeyLaboratoryofCropGeneticsandPhysiology/CoＧInnovationCenterforModernProductionTechnologyofGrainCrops,YangzhouUniversity,Yangzhou２２５００９,China;３StateKeyLaboratoryofSoilandSustainableAgriculture,InstituteofSoilScience,ChineseAcademyofSciences,Nanjing２１０００８,China;∗Correspondingauthor,EＧ
4、mail:yxwang＠yzue．duc．n)GAOHouyu,JINGLiquan,CHENLong,etal．EffectsofelevatedatmosphericCO２andtemperatureonseedvigorofriceunderopenＧairfieldconditions．ChinJRiceSci,２０１６,３０(４):３７１Ｇ３７９．Abstract:Theincreasesinatmosphericcarbondioxideconcentrationandairtemperaturearetwoimportantfeaturesofglobalcl
5、imatechange．Thepresentstudywasconductedtorevealhowriceseedvigorwillbeaffectedbythesetwoimportantenvironmentalfactorswhenriceplantsweregrownunderfutureenvironmentconditions．ByusingthericeFreeAirCO２Enrichment(FACE)system,aninbredjaponicariceWuyunjing２３wasgrownunderfourdifferentcombinationsof
6、CO２concentrationandtemperaturetreatments,i．e．ambientair(Ambient),elevated[CO２](EC,Ambient＋２００μmol/mol,elevatedtemperature(ET,Ambient＋２℃)andelevated[CO２]＋elevatedtemperature(EC＋ET)．Atmaturity,seedswereharvestedandsubjectedtothestandardgerminationtrialinlaboratory．Theresultsindicatedthatcomp
7、aredwithseedsobtainedfromambientair,theseedsfromECplantsshowedhighervalue(＋１６?５％)intheelectricalconductivityofdeionizedwaterinwhichseedshavebeensoakedfor２４hours．However,ECdecreasedthesproutingrate,germinationrate,germinationpotentialandgerminationindexby７．８％,１
