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1、江淮下游地區(qū)秈粳超級(jí)稻生育期與溫光資源利用特征的差異研究龔金龍 邢志鵬 胡雅杰 張洪程? 戴其根 霍中洋 許軻 魏海燕 高輝(揚(yáng)州大學(xué)農(nóng)業(yè)部長(zhǎng)江流域稻作技術(shù)創(chuàng)新中心/江蘇省作物遺傳生理重點(diǎn)實(shí)驗(yàn)室,江蘇揚(yáng)州２２５００９;?通訊聯(lián)系人,EＧmail:hczhang＠yzu．edu．cn)DifferenceinGrowthDurationandUtilizationofTemperatureandSolarRadiationBetweenindicaandjaponicaSuperRiceintheLowerYangtzea
2、ndHuaiheRiverValleyGONGJinＧlong,XINGZhiＧpeng,HUYaＧjie,ZHANGHongＧcheng?,DAIQiＧgen,HUOZhongＧyang,XUKe,WEIHaiＧyan,GAOHui(InnovationCenterofRiceCultivationTechnologyintheYangtzeRiverValley,MinistryofAgriculture/KeyLaboratoryofCropGeneticsandPhysiologyofJiangsuProvinc
3、e,YangzhouUniversity,Yangzhou２２５００９,China;?Correspondingauthor,EＧmail:hczhang＠yzu．edu．cn)GONGJinlong,XINGZhipeng,HUYajie,etal．DifferenceingrowthdurationandutilizationoftemperatureandsolarradiationbetweenindicaandjaponicasuperriceinthelowerYangtzeandHuaiheRiverVal
4、ley．ChinJRiceSci,２０１４,２８(３):２６７Ｇ２７６．Abstract:Inordertorevealthedifferenceingrowthdurationandutilizationoftemperatureandsolarradiationbetweenindicaandjaponicasuperrice,afieldexperimentwasconductedwithfivemainrepresentativesuperhybridindicacombinationsandfiveconven
5、tionaljaponicasuperricevarietiesasmaterialsinthericeＧwheatcroppingareas．Themaingrowthstages,drymatteraccumulation,effectiveaccumulatedtemperature,productionefficiencyoftemperature,photosyntheticallyactiveradiationandsolarenergyutilizationwereanalyzedsystematicall
6、y．Resultsshowedthat,thegrowthprocessesofjaponicariceinthefieldwerelaterthanindicarice,１６．２dayslaterforricematurityandharvesttime．Grainfillingstageofjaponicaricewassignificantlylongerthanthatofindicarice,withanincreasingrateof２５?８２％．Comparedwithindicarice,japonica
7、ricehadstrongadaptabilitytolowtemperature,whichwasbeneficialforprolongingheadingandgrainfillingappropriately,lengtheninggrainfillingandgrowthduration,andincreasingtheutilizationoftemperatureandsolarradiationinlateautumn．Japonicaricehadsignificantlyhighergrainyiel
8、d,biologicalyield,grainyieldperday,andgrowthduration,effectiveaccumulatedtemperature,photosyntheticallyactiveradiationandsolarenergyutilizationofthewholegrowth
