不同光周期及光质对草莓生理特性及品质的影响

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1、万方数据山东农业大学硕士学位论文EffectsofDifferentPhotoperiodandDifferentLightQualityonthePhysiologicalCharacteristicandQualityinStrawberryAbstractLight--emittingdiode(LED)isasolid--statesemiconductordevicesanditCanbedirectlyputelectricityintolight．LEDlightingsystemshaveseveraluniqueadvantages

2、overtraditionallighting，includingtheabilitytomaintainusefullightoutputforyearswithoutreplacement，spectralcompositionpure，lowconsumption，theabilityofenvironmentalprotection．Sotheyarewidelyusedinthestudyofplantgrowth．Ledlightsourceasthemostpromisinganddevelopmentprospectinthefiel

3、dofartificiallightsourceforfuturefactilities，usingitsregulationofplantmorphogenesisandplantgrowthisanimportanttechnologyinthefieldofgreenhousecultivation．NowmoststudiesoflightqualitiesofstrawberriesusingsunlighttransmittanceofsimilarfiltermembraneandtheyCall’taccuratequantitati

4、vemodulationspectralenergydistribution，lightunitandlightintensityarenotunified，SOaffecttheaccuracyofresearch．ThestudymainlyexplorestheLEDaslightsourceofphotoperiodandlightqualitiesonphotosyntheticcharacteristic，fruitproductionandqualityofstrawberry,inordertoprovidereferenceofph

5、otoperiodandlightqualitiesenvironmentalregulationofstrawberryinthefacilitycultivation．ThestudyuseLEDaslightsourcesettwotrials，taking‘miaoxiangNo．7’strawberryasmaterial，photoperiodicstudysetfourtreatment，8h．d～，12h．d～，16h．d。1and20h．d‘1；lightqualitytreatmentincludingfullredlight，f

6、ullbluelight，fullyellowlight，fullwhitelight，red／blue／yellow(7／2／1)，red／blue(7／2)lightgeneratedbylightemitcingdiode(LED)wasappliedtoaccuratelymodulatewitllwhitelightgeneratedascontr01．Theresultsshowedthat：1．Photoperiodhadsignificanteffectongrowthanddevelopmentofstrawberry．Planth

7、eight，leafarea,rootactivity,dryandfreshweightofplantunder16h‘d一1weresuperiortoothertreatments．TheresultshowedthatextendphotoperiodCaneffectivelypromotethegrowthofstrawberry．2．Photoperiodhaddifferenteffectonphotosyntheticcharacteristicofstrawberry．Photosyntheticparameters(R，正，Gs

8、)andpigmentcontentswereincreasedatfirstandthendecrease