ArticlePeerJ2026
Improving drought tolerance in some wheat genotypes with foliar application of silicon nanoparticles in Al-Dawadmi, Saudi Arabia.
Article in PeerJ, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Water stress, even at light or moderate levels, can negatively affect wheat physiology by altering gas exchange and photosynthetic pigments, thereby restricting growth, while severe stress further amplifies these effects and leads to more pronounced yield reductions. Foliar application of silicon nanoparticles (SiNPs) may help mitigate some of these detrimental effects on wheat's physiological and agronomic traits, as evaluated over two growing seasons at a single location. To test this hypothesis, two field experiments were conducted during the 2022/2023 and 2023/2024 winter seasons at the Experimental Farm in Al-Dawadmi, Saudi Arabia. The study evaluated the response of eight wheat genotypes to foliar-applied SiNPs under three irrigation regimes representing full, moderate, and severe water stress conditions. Agronomic and physiological characteristics of wheat were negatively affected by moderate and severe water stress. In comparison to the untreated control, the application of 100 and 200 mg L
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