水分亏缺对设施基质栽培番茄生长生理及水分利用效率的影响

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中图分类号：S641.2 文献标志码：A 文章编号：2097-2172（2025）04-0331-06

doi：10.3969/j.issn.2097-2172.2025.04.008

Effects of Water Deficit on the Growth Physiology and Water Use Efficiency of Tomatoes Grown in Facility Substrates

GAO Jing'， CHEN Yupeng1，LIU Xiaoqi1，WANG Junwen'，LU Jian1， XIAO Xuemei 12， YU Jihua （1.College of Horticulture，Gansu Agricultural University，Lanzhou Gansu 73Oo7o，China； 2.Gansu Provincial Key Laboratory of Arid Habitat Crop Science，Lanzhou Gansu 73Oo7O， China）

Abstract：This studyinvestigatedtheefectofwaterdeficitongrowth physiologyandwateruseeficiencyof tomatoesunder soilesssubstrateulivation，imingtoprovideatheoreticalbasisforhighieldndighqualityintomatoproduction.Usigtoato varietiesHairyowderndasxpimntalateals，4wateficitadientseetablishd，ioalgaiild （ 80 % normal irrigation）， moderate （ 60 % normal irrigation） and severe water deficit（ 40 % normal irrigation）， effects on plant height， stemdiameter，leafarea，photosytheticparameters，yieldperplant，umberoffruitperplant，fruitweightperplantandwateruse eficiencyofenttoatoreestigatdesultsodtatstgrefaterdititesido exhibited decreases in plant height，stem thicknessand leaf area，the net photosyntheticrate（ P n ），thetranspirationrate （ T r ）and the stomatal conductance（ G s ） weregetingsmaler，theyield showedanoverall downward trend，while wateruseefficiencygenerally increased.Mild water deficit（ 80 % normal irigation） improved water use efficiency without significantly reducing yield. Compared withvariety181，hairypowder8O2showedarelativelysmaleryieldreductionandhigherwateruseeficiency，makingitmore suitable for cultivation under water-deficit conditions.

KeyWords：Water deficit； Tomato； Facility substrate； Growth physiology；Water use efficiency

水分对植物生长发育、产量形成均有显著调控作用，是农业生产中不可或缺的要素之一。（剩余6921字）