Irrigation with saline water can act as an alternate water resource and thus plays an important role in saving freshwater resources as well as promoting agriculture. Furthermore, salinity stress is considered one of the major abiotic stress factors, which strongly reduces crop productivity. In this context, the present work was conducted to examine the effect of exogenous salicylic acid (SA) application on salt stress tolerance of strawberry plants. For this purpose, strawberry plants (Fragaria vesca L.), three months old, were treated with three SA concentrations (0 mM, 0.25 mM and 0.5 mM), then subjected to 80 mM NaCl or not. After five weeks of treatment, growth responses, water status, photochemical efficiency and oxidative stress indicators were measured. The obtained results showed that irrigation with saline water negatively affected the growth parameters, the leaf water potential (LWP), the relative water content (RWC), the stomatal conductance (gs) and photochemical efficiency (Fv/Fm). While, the total protein content, the electrolyte leakage (EL), the malondialdehyde (MDA) and the hydrogen peroxide (H₂O₂) contents were increased in stressed plants compared to unstressed ones. Salt stress also leads to the activation of the antioxidant enzymes. However, the exogenous application of SA under salt stress conditions reduced the H₂O₂ accumulation, the electrolyte leakage and the MDA content. It has also improved the growth parameters, the LWP, the RWC, the gs, the Fv/Fm, the protein content and the antioxidant enzyme activities (POD, CAT and SOD) in the treated plants compared to those without SA application. Therefore, the beneficial effect of 0.25 mM SA on Fragaria vesca L. salinity tolerance may provide some practical basis for strawberry cultivation under saline conditions.

咸水灌溉可作为替代水资源，对节约淡水资源和促进农业发展具有重要作用。此外，盐分胁迫被认为是主要的非生物胁迫因素之一，会严重降低作物生产力。在此背景下，本工作旨在研究外源水杨酸 (SA) 应用对草莓植物盐胁迫耐受性的影响。为此，草莓植物（Fragaria vesca L.)，三个月大，用三种 SA 浓度（0 mM、0.25 mM 和 0.5 mM）处理，然后接受或不加入 80 mM NaCl。处理五周后，测量生长反应、水分状态、光化学效率和氧化应激指标。所得结果表明，用盐水灌溉对生长参数、叶水势 (LWP)、相对含水量 (RWC)、气孔导度 (gs) 和光化学效率 (Fv/Fm) 产生负面影响。而总蛋白质含量、电解质泄漏 (EL)、丙二醛 (MDA) 和过氧化氢 (H ₂ O ₂) 与未受胁迫的植物相比，受胁迫的植物中的含量增加。盐胁迫也会导致抗氧化酶的激活。然而，在盐胁迫条件下外源性应用SA降低了H ₂ O ₂积累、电解质泄漏和MDA含量。与未施用 SA 的植物相比，它还改善了处理植物的生长参数、LWP、RWC、gs、Fv/Fm、蛋白质含量和抗氧化酶活性（POD、CAT 和 SOD）。因此，0.25 mM SA对草莓草莓 耐盐性的有益作用可能为盐渍化条件下草莓栽培提供一定的实践依据。