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1、中國水稻科學(xué)(ChinJRiceSci),2011,25(6):605-612http://www.ricesci.cnDOI:10.3969/j.issn.1001-7216.2011.06.007605稻田增氧模式對水稻籽粒灌漿的影響趙鋒1,212,*22張衛(wèi)建章秀福王丹英徐春梅(1南京農(nóng)業(yè)大學(xué)應(yīng)用生態(tài)研究所,江蘇南京210095;2中國水稻研究所水稻生物學(xué)國家重點實驗室,浙江杭州310006;*通訊聯(lián)系人,E-mail:zhangxf169@sohu.com)EffectsofOxygen-IncreasingPatternsinPaddy
2、FieldsonRiceGrain-Filling1,2,Z1,Z2,*,W2,X2ZHAOFengHANGWei-jianHANGXiu-fuANGDan-yingUChun-mei(12InstitueofAppliedEcology,NanjingAgriculturalUniversity,Nanjing210095,China;StateKeyLaboratoryofRiceBiology,ChinaNationalRiceResearchInstitute,Hangzhou310006,China;*Correspondingauth
3、or,E-mail:zhangxf169@sohu.com)ZHAOFeng,ZHANGWeijian,ZHANGXiufu,etal.Effectsofoxygen-increasingpatternsinpaddyfieldsonricegrain-fill-ing.ChinJRiceSci,2011,25(6):605-612.Abstract:Theeffectsofoxygen-increasingpatternsinpaddyfieldsonriceyieldformationandgrain-fillingdynamicswerei
4、n-vestigatedinatwo-yearfieldexperiment(2008-2009)underthreeoxygen-increasingpatterns,includingapplicationofureaperoxideastopdressing(T1),applicationofcalciumperoxideastopdressing(T2)anddry-wetalternateirrigation(T3),withcontinuoussubmergedirrigationascontrol(CK).TheRichardseq
5、uationwasusedtosimulategrainfillingprocessesoftworicegenotypes(Guodao1andXiushui09)underdifferentoxygen-increasingpatterns.Comparedwiththecontrol(CK),theyieldsofGuodao1(indica)underT1,T2andT3wereincreasedby11.6%,8.5%and13.6%in2008and16.8%,14.4%and23.0%in2009;Similarly,theyiel
6、dsofXiushui09(japonica)underT1,T2andT3wereincreasedby6.6%,9.2%and9.4%in2008,and14.6%,17.2%and17.4%in2009,respectively.Ricegrain-fillingprocessfittedwellwiththeRichards2equation(R>0.989),andthemaineffectsofoxygen-increasingpatternsonricegrain-fillingwereasfollows:1)Maximumgrai
7、nweightofinferiorandsuperiorgrainswerebothincreasedwithsmallerdifferenceingrainweightbetweenthetwogenotypesandimprovedgrain-fillingsynchronism;2)Inferiorgrainsofthetworicegenotypeshadafullgrainfillingprocess.Theoxygen-increasingpatternsextendedthegrain-fillingdurationofinferi
8、orgrainsofGuodao1,andincreasedthegrain-fillingrateofinferiorgrainsof