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Review
. 2022 Mar 8;11(6):717.
doi: 10.3390/plants11060717.

Salt Stress in Plants and Mitigation Approaches

Affiliations
Review

Salt Stress in Plants and Mitigation Approaches

Gabrijel Ondrasek et al. Plants (Basel). .

Abstract

Salinization of soils and freshwater resources by natural processes and/or human activities has become an increasing issue that affects environmental services and socioeconomic relations. In addition, salinization jeopardizes agroecosystems, inducing salt stress in most cultivated plants (nutrient deficiency, pH and oxidative stress, biomass reduction), and directly affects the quality and quantity of food production. Depending on the type of salt/stress (alkaline or pH-neutral), specific approaches and solutions should be applied to ameliorate the situation on-site. Various agro-hydrotechnical (soil and water conservation, reduced tillage, mulching, rainwater harvesting, irrigation and drainage, control of seawater intrusion), biological (agroforestry, multi-cropping, cultivation of salt-resistant species, bacterial inoculation, promotion of mycorrhiza, grafting with salt-resistant rootstocks), chemical (application of organic and mineral amendments, phytohormones), bio-ecological (breeding, desalination, application of nano-based products, seed biopriming), and/or institutional solutions (salinity monitoring, integrated national and regional strategies) are very effective against salinity/salt stress and numerous other constraints. Advances in computer science (artificial intelligence, machine learning) provide rapid predictions of salinization processes from the field to the global scale, under numerous scenarios, including climate change. Thus, these results represent a comprehensive outcome and tool for a multidisciplinary approach to protect and control salinization, minimizing damages caused by salt stress.

Keywords: artificial intelligence; neutral and alkaline salinity; plant–microbe associations; salinity and nanotechnology; salt stress; soil amendments.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Vegetative and growth performances of lettuce (A) and strawberry (B) exposed to neutral salt stress (0–60 mM NaCl), and corn (C) exposed alkaline salt stress (0–10% wood-derived ash) with induced soil electrical conductivity (EC) and pH changes, after [12,26,27].
Figure 2
Figure 2
Solutions for salinization management and mitigating salt stress in plants.

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