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1、中国水稻科学(ChinJRiceSci),２０１６,３０(３):２７３－２８２http://www．ricesci．cnDOI:１０．１６８１９/j．１００１Ｇ７２１６．２０１６．５１２８２７３氮肥对水稻节间和叶鞘非结构性碳水化合物积累转运特征的影响潘俊峰１,３,＃王博３,＃崔克辉２,３,∗黄见良２,３聂立孝２,３(１广东省农业科学院水稻研究所,广州５１０６４０;２主要粮食作物产业化湖北省协同创新中心,湖北荆州４３４０２５;３作物遗传改良国家重点实验室/农业部长江中游作物生理生态与耕作重点实验室/
2、华中农业大学植物科技学院,武汉４３００７０;＃共同第一作者;∗通讯联系人,EＧmail:cuikehui＠mail．hzau．edu．cn)EffectsofNitrogenApplicationonAccumulationandTranslocationofNonＧstructuralCarbohydratesinInternodesandSheathsofRicePANJunＧfeng１,３,＃,WANGBo３,＃,CUIKeＧhui２,３,∗,HUANGJianＧliang２,３,NIELi
3、Ｇxiao２,３(１RiceResearchInstitute,GuangdongAcademyofAgriculturalSciences,Guangzhou５１０６４０,China;２HubeiCollaborativeInnoＧvationcenterforGrainIndustry,Jingzhou４３４０２５,China;３NationalKeyLaboratoryofCropGeneticImprovement/MOAKeyLaＧboratoryofHuazhongCropPhysio
4、logy,EcologyandProduction/CollegeofPlantScienceandTechnology,HuazhongAgriculturalUniversity,Wuhan４３００７０,China;＃Theseauthorscontributedequallytothiswork;∗Correspondingauthor,EＧmail:cuikehui＠mail．hzaue．duc．n)PANJunfeng,WANGBo,CUIKehui,etal．Effectsofnitr
5、ogenapplicationonaccumulationandtranslocationofnonＧstructuralcarbohydratesininternodesandsheathsofrice．ChinJRiceSci,２０１６,３０(３):２７３Ｇ２８２．Abstract:Twoindicaricevarieties,Liangyoupeijiu(LYP９)andYangdao６(YD６),weregrowninpotsunderlow(N)andhigh(N)nitrogenapp
6、licationrates．TheaccumulationandtranslocationofnonＧstructuralcarbohydrates１２(NSC)inthetopＧmostthreeinternodesandleafsheathsofmainstemsanditscontributionstograinyieldwereinvestiＧgated．１)ComparedwithN２treatment,N１treatmentenhancedNSCtranslocationofthese
7、condandthirdinternodesandsheathsinLYP９duringtheearlygrainfillingstage,andalsoincreasedtheapparenttransferredmassofNSC(ATM)ofthethreeinternodesfromthetopandsheathsinYD６andthethirdinternodefromthetopandsheathinNSCLYP９,respectively．However,N１treatmenthad
8、noobviouseffectonATMNSCofthetopfirstandsecondinternodesandsheathsinLYP９．Noticeably,N１treatmentincreasedtheapparentcontributionsofNSCtograinyield(ACNSC)ofthethreeinternodesandsheathsinbothtwovarieties．２)ExceptthetopＧmostthirdsheathinLYP９,theATM
