不同LED光源对设施越冬辣椒光合特性和叶绿素荧光参数的影响  

Effect of differernt LED light quality treatment on photosynthesis and chlorophyll fluorescence parameters of overwintering pepper in greenhouse

作　　者：吴根良[1] 郑积荣[1] 李许可 

机构地区：[1]杭州市农业科学研究院,浙江杭州310024 [2]杭州汉徽光电科技有限公司,浙江杭州310051

出　　处：《浙江农业学报》2013年第6期1272-1278,共7页Acta Agriculturae Zhejiangensis

基　　金："十二五"国家科技支撑计划课题(2011BAD12B04-04)

摘　　要：采用不同LED光源照射植株,研究不同光质、不同补光时间对设施越冬辣椒光合参数及叶绿素荧光参数的影响。结果表明:不同LED光源、不同补光时间对辣椒叶片的光合速率、气孔导度、蒸腾速率、胞间CO2浓度以及叶绿素荧光参数Fv'/Fm',qN,ΦPSⅡ,ETR,qP均有显著的影响。采用较短补光时间(6 h和8h),RB光和B光均能显著提高辣椒叶片的光合速率、胞间CO2浓度和ΦPSⅡ,ETR,而且补光6 h的效果好于8h;采用较长补光时间(10 h)时,RB光能显著提高Fv'/Fm',而W光及RB73光却耗掉更多的热能。RB83处理6 h和8 h能显著提高辣椒的光合作用,可作为设施辣椒越冬生产的补光光源。The effect of differernt LED light quality treatment on photosynthesis and chlorophyll fluorescence parame -ters of overwintering pepper in greenhouse was studied .The results showed that the photosynthesis rate , stomatal con-ductance, transpiration rate, intercellular CO2 concentration and Fv′/Fm′, qN,ΦPSI , ETR, qP had significant im-pact under differernt LED light quality and differernt supplemental time on pepper leaves .Treated with short time （6 hours and 8 hours）, the photosynthetic rate, intercellular CO2 concentration,ΦPSI and ETR of pepper were signifi-cantly improved under RB light and B light , and supplementary lighting for 6 hours was better than 8 hours.Treated with long time （10 hours）, Fv′/Fm＇was significantly improved under RB light , but more heat was disspated under W light and RB73 light.Treatment under RB83 light for 6 h and 8 h can significantly improve the photosynthesis of pep-per, therefore the two treatments can be used as supplemental light in greenhouse production of overwintering pepper .

关 键 词：辣椒 LED 光合作用 叶绿素荧光参数 

分 类 号：S641.3[农业科学—蔬菜学]