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1、2010年第4期漳州师范学院学报(自然科学版)No.4.2010年
(总第70期)JournalofZhangzhouNormalUniversity(Nat.Sci.)GeneralNo.70文章编号:1008-7826(2010)04-0108-05短叶金边虎尾兰的光合和叶绿素荧光特性研究陆銮眉1,林金水2,杜晓娜3,卞阿娜1(1.漳州师范学院生物科学与技术系,福建漳州363000;2.福建省热带作物科学研究所,福建漳州363001;3.厦门大学生命科学学院,福建厦门361005)摘要:本文研究了短叶金边虎尾兰近轴面、远轴面叶的光合和叶绿素荧光特性,通过测定供试植物叶片的
2、形态特征、叶绿素含量、光合作用日变化、光响应曲线和叶绿素荧光参数,并对测定结果进行相关分析.结果表明:供试的短叶金边虎尾兰叶面积大和比叶面积高,同时它的Chla/b值小于3,LSP和LCP均比较低,说明短叶金边虎尾兰利用弱光能力强,具有很强的耐荫性.另外它的近轴面、远轴面叶可以同时进行光合作用,而且光合能力差异不大,近轴面稍强于远轴面.因此,在生产上应注意光强的管理,在中午和夏季进行适当遮荫,以确保品质;在园林配置时应避免种在全光照的地方,可以配置在疏林中或林缘边.相关分析表明短叶金边虎尾兰的Pn与Ci极显著负相关,与PAR呈显著正相关;Tr与Gs、PAR呈极显著相关;Vpd
3、L与PAR呈显著正相关;其它参数间不相关.关键词:短叶金边虎尾兰;光合速率;叶绿素含量;叶绿素荧光特性中图分类号:S718.3文献标识码:ATheStudyofPhotosyntheticCharacteristics8GardenShrubsLULuan-mei1,LINJin-shui2,DUXiao-na3,BIANA-na1(1.DepartmentofBiologyScienceandTechnology,ZhangzhouNormalUniversity,Zhangzhou,Fujian363000,China;2.FujianScienceInstituteof
4、TropicalCrops,Zhangzhou,Fujian363001,China;3.SchoolofLifeSciences,XiamenUniversity,Xiamen361005,China)Abstract:Inthispaper,thephotosyntheticcharacteristicsandshadetoleranceofsansevieriatrifasciatacv.goldenhahniiwerestudied,Bymeasuringthemorphologicalcharacteristicsofplantleaves,diurnalvaria
5、tionofthephotosynthesis,lightresponsecurveandChlorophyllfluorescenceparameters,andanalysisingthevarianceandcorrelationoftheresults.Theresultsshowed:thetestedvarietiesleafareaandspecificleafareaofhigh,whileitsChla/bvalueoflessthan3,LSPandLCPwerelow,indicatingsansevieriatrifasciatacv.goldenha
6、hniiLangleywithlowlightcapability,hasastrongshadetolerance.Anotherofitsadaxial,abaxialleafphotosynthesissimultaneously,anddifferencesinphotosyntheticcapacityisnotthelastshaft,theadaxialleafslightlystrongerthantheabaxial.Therefore,inordertoensurequality,weshouldpayattentionspentontheproducti
7、onoflightintensity,appropriateatnoonandthesummershade.Inthegarden,theycanbeconfiguredinthewoodlandorforestrim,andshouldbeavoidedplantedintheplacewherealllight.CorrelationanalysisshowedthatitsPnandCiwassignificantlynegativelycorrelated,withPARshowedasigni