寒旱农业科学2025，Vol.4Issue(4)：331-336,6.DOI:10.3969/j.issn.2097-2172.2025.04.008
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
Effects of Water Deficit on the Growth Physiology and Water Use Efficiency of Tomatoes Grown in Facility Substrates
摘要
Abstract
This study investigated the effect of water deficit on growth physiology and water use efficiency of tomatoes under soilless substrate cultivation,aiming to provide a theoretical basis for high yield and high quality in tomato production.Using tomato varieties Hairy Powder 802 and 181 as experimental materials,4 water deficit gradients were established,i.e.,normal irrigation.mild(80%normal irrigation),moderate(60%normal irrigation)and severe water deficit(40%normal irrigation),effects on plant height,stem diameter,leaf area,photosynthetic parameters,yield per plant,number of fruit per plant,fruit weight per plant and water use efficiency of different tomato varieties were investigated.Results showed that as the degree of water deficit intensified,both varieties exhibited decreases in plant height,stem thickness and leaf area,the net photosynthetic rate(Pn),the transpiration rate(Tr)and the stomatal conductance(Gs)were getting smaller,the yield showed an overall downward trend,while water use efficiency generally increased.Mild water deficit(80%normal irrigation)improved water use efficiency without significantly reducing yield.Compared with variety 181,hairy powder 802 showed a relatively smaller yield reduction and higher water use efficiency,making it more suitable for cultivation under water-deficit conditions.关键词
水分亏缺/番茄/基质栽培/生长生理/水分利用效率Key words
Water deficit/Tomato/Facility substrate/Growth physiology/Water use efficiency分类
园艺学与植物营养学引用本文复制引用
高京,陈玉鹏,刘晓奇,王俊文,吕剑,肖雪梅,郁继华..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[J].寒旱农业科学,2025,4(4):331-336,6.基金项目
甘肃农业大学省级大学生创新创业训练计划项目(S202310733048) （S202310733048）
国家自然科学基金(32160703) （32160703）
甘肃农业大学国重实验室开放基金项目(GSCS-2020-12). （GSCS-2020-12）
