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1、中国水稻科学(ChinJRiceSci),２０１３,２７(５):５１１－５１９http://www．ricesci．cnDOI:１０．３９６９/ji．ssn．１００１Ｇ７２１６．２０１３．０５．００８５１１不同栽培方式对免耕水稻茎鞘物质积累转运与抗倒伏能力的影响杨志远１,２孙永健１,２徐徽１秦俭１,２贾现文１马均１,２,∗(１四川农业大学水稻研究所,四川温江６１１１３０;２农业部西南作物生理生态与耕作重点实验室,四川温江６１１１３０;∗通讯联系人,EＧmail:majunp２００２＠１６３．com)EffectsofDifferentCul
2、tivationMethodsonAccumulationandTransformationofAssimilationProductsandLodgingResistanceofStemＧsheathsofNoＧtillageRiceYANGZhiＧyuan１,２,SUNYongＧjian１,２,XUHui１,QINJian１,２,JIAXianＧwen１,MAJun１,２,∗(１RiceResearchInstitute,SichuanAgriculturalUniversity,Wenjiang６１１１３０,China;２KeyLab
3、oratoryofCropPhysiology,Ecology,andCultivationinSouthwestChina,MinistryofAgriculture,Wenjiang６１１１３０,China;∗Correspondingauthor,EＧmail:majunp２００２＠１６３c．om)YANGZhiyuan,SUNYongjian,XUHui,etal．EffectsofdifferentcultivationmethodsonaccumulationandtransforＧmationofassimilationpro
4、ductsandlodgingresistanceofstemＧsheathsofnoＧtillagerice．ChinJRiceSci,２０１３,２７(５):５１１Ｇ５１９．Abstract:TheeffectsofdifferentcultivationmethodsonaccumulationandtransformationofassimilationproductsandlodgingresistanceofstemＧsheathsofnoＧtillage(NT)ricewereinvestigatedwithhybridrice
5、Ⅱyou４９８asmaterial．Atthesametime,therelationshipbetweentransformationofassimilationproductsandlodgingresistanceofstemＧsheathswasalsostudied．TheresultsshowedthattherewasnosignificantdifferencebetweenNTriceandplowingＧtillage(PT)riceinaccumulationandtransformationofassimilatio
6、nproductsbeforeheading,butphotosyntheticproductivityafterheadingofNTricewasmuchsmallerthanthatofPTrice,resultinginsignificantlysmallergrainyieldofNTricethanthatofPTrice．UnderPT,triangleＧplantedsystemofriceintensification(TSRI)notonlygainedthehighestgrainyieldbutalsomaintai
7、nedasmalllodgingindex(LI)ofthefifthinternodefromtop．InNT,theinteractionbetweenwideandnarrowrowcultivation(WNR)andNTnotonlyboosteddrymatteraccumulationafterheadingtoincreasegrainyieldeffectivelybutalsoreducedthelodgingriskatthebottomoftheplantlargely,whichmadeWNRtheoptimalc
8、ultivaＧtionmethodamongthefourinNT．Inthisresearch,riceplantsgotflattenedmosteasilyatthe５th
