Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants

Salicylic acid (SA) is one of the strongest candidates to be used as a salinity moderator. A hydroponic experiment was conducted to evaluate the effect of foliar application of SA (0.00, 0.75 and 1.50 mM) on growth, productivity, and some physiological and biochemical parameters of French beans (<...

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Main Authors: Sabry M. Youssef, Antonio López-Orenes, María A. Ferrer, Antonio A. Calderón
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/9/1/75
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author Sabry M. Youssef
Antonio López-Orenes
María A. Ferrer
Antonio A. Calderón
author_facet Sabry M. Youssef
Antonio López-Orenes
María A. Ferrer
Antonio A. Calderón
author_sort Sabry M. Youssef
collection DOAJ
description Salicylic acid (SA) is one of the strongest candidates to be used as a salinity moderator. A hydroponic experiment was conducted to evaluate the effect of foliar application of SA (0.00, 0.75 and 1.50 mM) on growth, productivity, and some physiological and biochemical parameters of French beans (<i>Phaseolus vulgaris</i> L.) continuously exposed to three NaCl levels (0, 50 and 100 mM). NaCl treatment significantly reduced vegetative growth parameters (between 16–50%), membrane stability (10–15%), relative water content (25–31%), chlorophyll content (21–42%), macro- and micronutrient levels (13–52% and 4–49%, respectively), growth promoters (auxins, gibberellins, and cytokinins; 11–28%), and yield of green pods (22–39%), while the phenolic compounds contents (35–55%), total antioxidant capacity (34–51%), proline (60–100%) and malondialdehyde (18–51%) contents, peroxidase activity (35–41%), Na<sup>+</sup> (122–152%) and Cl<sup>−</sup> (170%) ions and abscisic acid (20–30%) contents were significantly increased compared to the non-salt-stressed controls. Foliar application of SA at 0.75 mM was able to overcome the adverse effects of NaCl stress to variable extent, which allowed for close to 90% of the yield of control plants to be reached. In conclusion, this study demonstrated that foliar spraying of SA helped to reduce the harmful effects of NaCl stress on French bean via regulation of some physiological and biochemical processes. This could be the basis of an effective and low-cost strategy to cope with salt stress.
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spelling doaj.art-ef6c7fc0ff714da0b273b0747595540f2023-11-30T22:30:33ZengMDPI AGHorticulturae2311-75242023-01-01917510.3390/horticulturae9010075Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean PlantsSabry M. Youssef0Antonio López-Orenes1María A. Ferrer2Antonio A. Calderón3Department of Horticulture, Faculty of Agriculture, University of Ain Shams, Shoubra El-Khaymah, Cairo 11241, EgyptDepartment of Agronomic Engineering, Universidad Politécnica de Cartagena, 30203 Cartagena, SpainDepartment of Agronomic Engineering, Universidad Politécnica de Cartagena, 30203 Cartagena, SpainDepartment of Agronomic Engineering, Universidad Politécnica de Cartagena, 30203 Cartagena, SpainSalicylic acid (SA) is one of the strongest candidates to be used as a salinity moderator. A hydroponic experiment was conducted to evaluate the effect of foliar application of SA (0.00, 0.75 and 1.50 mM) on growth, productivity, and some physiological and biochemical parameters of French beans (<i>Phaseolus vulgaris</i> L.) continuously exposed to three NaCl levels (0, 50 and 100 mM). NaCl treatment significantly reduced vegetative growth parameters (between 16–50%), membrane stability (10–15%), relative water content (25–31%), chlorophyll content (21–42%), macro- and micronutrient levels (13–52% and 4–49%, respectively), growth promoters (auxins, gibberellins, and cytokinins; 11–28%), and yield of green pods (22–39%), while the phenolic compounds contents (35–55%), total antioxidant capacity (34–51%), proline (60–100%) and malondialdehyde (18–51%) contents, peroxidase activity (35–41%), Na<sup>+</sup> (122–152%) and Cl<sup>−</sup> (170%) ions and abscisic acid (20–30%) contents were significantly increased compared to the non-salt-stressed controls. Foliar application of SA at 0.75 mM was able to overcome the adverse effects of NaCl stress to variable extent, which allowed for close to 90% of the yield of control plants to be reached. In conclusion, this study demonstrated that foliar spraying of SA helped to reduce the harmful effects of NaCl stress on French bean via regulation of some physiological and biochemical processes. This could be the basis of an effective and low-cost strategy to cope with salt stress.https://www.mdpi.com/2311-7524/9/1/75French bean<i>Phaseolus vulgaris</i>salicylic acidsalinityantioxidanthormones
spellingShingle Sabry M. Youssef
Antonio López-Orenes
María A. Ferrer
Antonio A. Calderón
Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
Horticulturae
French bean
<i>Phaseolus vulgaris</i>
salicylic acid
salinity
antioxidant
hormones
title Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
title_full Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
title_fullStr Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
title_full_unstemmed Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
title_short Foliar Application of Salicylic Acid Enhances the Endogenous Antioxidant and Hormone Systems and Attenuates the Adverse Effects of Salt Stress on Growth and Yield of French Bean Plants
title_sort foliar application of salicylic acid enhances the endogenous antioxidant and hormone systems and attenuates the adverse effects of salt stress on growth and yield of french bean plants
topic French bean
<i>Phaseolus vulgaris</i>
salicylic acid
salinity
antioxidant
hormones
url https://www.mdpi.com/2311-7524/9/1/75
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