冬季温室内5种爵床科植物光合特性研究赵欢欢张芸曹慧清衣瑞东张翠萍摘要爵床科植物性喜溫暖，多生长在南方，北方地区的环境条件难以满足该种植物生长，所以许多种类被引种到温室进行观赏。研究冬季温室内爵床科植物的光合特性，为爵床科植物的引种、科学栽培、越冬提供科学依据。选用青岛市植物馆内5种爵床科（Acanthaceae）植物：银脉爵床（Kudoacanthusalbonervosa）、金脉爵床（Sancheziaspeciosa）、赤苞花（Megaskepasmaerythrochlamys）、黄虾花（Pachystachyslutea）、十字爵床（Crossandrainfundibuliformis）为研究对象。采用CIRAS-3便携式光合测定仪，分别测定了越冬过程中5种爵床科植物的净光合速率、蒸腾速率、气孔导度、胞间CO2浓度、水分利用效率（WUE）。结果表明：在冬季温室环境中，5种爵床科植物的净光合速率会下降;蒸腾速率会略微升高;胞间CO2浓度变化不大，在一定范围内平缓波动;气孔导度除赤苞花出现升高外，其余4种爵床科植物冬季出现下降;黄虾花水分利用率变化下降最大。综上所述，冬季温室环境下，爵床科植物会处于休眠状态，生命活动变弱以减少养分的消耗，维持正常生命活力，安全越冬。关键词冬季;温室;爵床科;光合特性Q945.11A0517-6611（2020）16-0126-03doi：10.3969/j.issn.0517-6611.2020.16.034ResearchonPhotosyntheticCharacteristicsofFiveAcanthaceaePlantsinWinterGreenhouseZHAOHuan-huan，ZHANGYun，CAOHui-qingetal（CollegeofLandscapeandForestry，QingdaoAgriculturalUniversity，Qingdao，Shandong266109）AbstractAcanthaceaeplantslikewarmplants，moregrowinthesouth，theenvironmentalconditionsinthenortharedifficulttomeetthegrowthofthisplant，somanyspeciesintroducedtothegreenhouseforviewing.ThephotosyntheticcharacteristicsofAcanthaceaeplantsingreenhouseinwinterweremeasured，aimingtoprovidescientificbasicfortheintroduction，scientificcultivationandoverwinteringofAcanthaceaeplants.ThisexperimentselectedfivespeciesofAcanthaceaeplantsastheresearchobjects，includingKudoacanthusalbonervosa，Sancheziaspeciosa，Megaskepasmaerythrochlamys，Pachystachyslutea，Crossandrainfundibuliformis.TheCIRAS-3portablephotosyntheticapparatuswasusedtomeasurenetphotosyntheticrate，transpirationrate，stomatalconductanceandintercellularCO2concentration，wateruseefficiency（WUE）duringthewinteroffivespeciesofAcanthaceaeplants.Theresultsshowedthatinthegreenhouseenvironmentinwinter，thenetphotosyntheticratesofthefivespeciesofAcanthaceaeplantsdeclined;transpirationrateslightlyincreased;intercellularCO2concentrationchangewasnotlarge，flatfluctuationswithinacertainscope;inadditiontotheMegaskepasmaerythrochlamysincreased，thestomatalconductanceoftherestofthefourkindsofAcanthaceaeplantwinterdeclined;wateruseefficiencyvariationofPachystachysluteadecreased.Insummary，inthegreenhouseenvironmentinwinter，Acanthaceaeplantswillbedormant，andweakerlifeactivitieswerekeptinordertoreducetheconsumptionofnutrientandmaintainnormallifesafetyoverwinter.KeywordsWinter;Greenhouse;Acanthaceae;Photosyntheticcharacteristics作者简介赵欢欢（1997—），女，山东菏泽人，从事林学研究。*通信作者，讲师，博士，从事生理生态学研究。-全文完-