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时间:2020-04-17
《不同灌水量对日光温室黄瓜光合作用及水分利用效率的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、内蒙古农业科技2014(4):21~23InnerMongoliaAgriculturalScienceAndTechnology不同灌水量对日光温室黄瓜光合作用及水分利用效率的影响李怀平,杨金莲,尹鹏程,靳博。(1.伊金霍洛旗城郊现代农业办公室,内蒙古伊金霍洛旗017200;2.内蒙古农业大学,内蒙古呼和浩特010019)摘要:为了提高设施黄瓜栽培的水分利用效率,探索设施黄瓜节水栽培模式。试验以黄瓜为试材,以农民经验灌溉灌水量为对照,研究了控制灌水定额对嫁接和自根黄瓜光合生理、产量和水分利用效率的影响。研究结果表明:适当减少灌水量对于增强黄瓜光合速率和提高水分利用效率效果显著在试验中控制8
2、0%~85%灌水下限处理(I1处理)下黄瓜光合速率和叶绿素含量均较农民经验灌溉(12处理)显著提高:I1处理下嫁接和自根黄瓜水分利用效率也较I2处理有显著提高。与自根黄瓜相比,嫁接可以显著增加黄瓜光合作用、产量和水分利用效率在I1处理下。嫁接处理(G)比自根黄瓜增产7.16%,提高水分利用效率7.16%;在I2处理下,嫁接黄瓜比自根黄瓜增产7.84%.提高水分利用效率7.83%。总之,1】一G处理在黄瓜光合作用、产量和水分利用效率等方面表现最优,是生产实践中较好的栽培和水分管理模式,具有推广价值。关键词:温室栽培黄瓜;灌溉:光合;水分利用效率中图分类号:$642.2文献标识码:Al0.396
3、9~.issn.1007—0907.2014.04.007文章编号:l0o7~0907(2014)04—0021—03EfectsofDiferentIrrigationQuantityonPhotosyntheticPhysiologyandWaterUseEficiencyofCucumberinGreenhouseLIHuai-ping(SuburbModemAgriculturalOficeofEjinHoroBanner,EjinHoroBanner017200,China)Abstract:Theexperimentwasstudiedtoimprovewateruseefici
4、encyofcucumberingreenhouseandexploreculturalmodelwitheconomizingwater.Asthecontrastofirrigationamountinexperienceoffarmer,thecucumberweretestedastheexperimentalmaterialstostudytheeffectofcontrollingirrigationquantityonphotosyntheticphysiology,yieldandwateruseeficiencyofgraftedcucumberandself-rooted
5、cucumberinthegreenhouse.Theresultsshowedthatas~llows:therewereobviouseffectsofappropriatelyreducingirrigationquantitytopromotephotosynthesisandimprovewateruseeficiency.ThetreatmentofI1wassignificantlymorethanthetreatmentofI2inphotosynthesisandchlorophylcontentofcucumber.Comparedwithself-rootedcucum
6、ber,graftedcucumberhadbetterperformanceinphotosynthesis,yield,andwateruseeficiency.InthetreatmentofI1,yieldandwateruseeficiencyofgraftedcucumberrespectivelyimproved7.16%,comparedwithself-rootedcucumbe~InthetreatmentofI2,yieldandwateruseefficiencyofgraftedcucumberrespectivelyimproved7.83%,comparedwi
7、thself—rootedcucumber.Onthewhole,inthisexperiment,thetreatmentofI1一Ghadbestperformanceinthehandofphotosynthesis,yield,andwateruseefficiency,wasabettercultivatingandirrigationmode,andhadapromotionalvalue.Key
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