Beneficial Effects of Silicon (Si) on Sea Barley (Hordeum marinum Huds.) under Salt Stress

Higher activity of PSI compared to PSII accounts for the beneficial effect of silicon on barley (Hordeum vulgare L.) plants challenged with salinity

“…1, 2). Similar results have been observed in several plant species, such as common wheat (T. aestivum), durum wheat (Triticum turgidum), barley (H. vulgare), and sea barley (H. marinum) (Munns et al 1995, Chen et al 2014, El-khawaga 2018, Laifa et al 2021. Salt stress induces a reduction in plant growth mainly due to the osmotic pressure applied to the root area, which causes reduced water uptake and turgor pressure, stomatal closure, reduced photosynthesis, and toxic mineral disturbances (Bandehagh et al 2011, Adhikari et al 2019, Hurtado et al 2019, Attia et al 2022 as well as a combination of them (Ashraf 2004).…”

“…For instance, the addition of Si improves plant growth and yield and grain quality in rice (Ma and Takahashi 2002). Similar beneficial effects were also observed in other cereals such as wheat (Tuna et al 2008) and sea barley (Hordeum marinum) (Laifa et al 2021). Moreover, the application of silicon increases transpiration rate and net CO2 assimilation under various stresses (Shen et al 2010).…”

“…In general, Si is not considered essential for plant growth due to the lack of evidence for its involvement in plant metabolism (Dhiman et al 2021). Nevertheless, its application to plants provides them with better tolerance to various environmental stresses, such as salinity (Akhter et al 2022, El Moukhtari et al 2021aLaifa et al 2021), drought (Thorne et al 2020), and nutritional disorders (Benslima et al 2021(Benslima et al , 2022Ksiaa et al 2022).…”

A Beginner’s Guide to Osmoprotection by Biostimulants

“…Silicon can be applied in several forms: K 2 SiO 3 has been applied in wheat to alleviate drought stress [ 123 ], in common bean to enhance salt stress tolerance [ 124 ], and can increase yield under drought stress [ 125 ]. Na 2 SiO 3 is able to improve salt stress tolerance in barley [ 126 ] and in maize growing under drought stress [ 127 ]. However, as far as we know, increased production under stress was not reported using this silicon compound.…”

“…Na 2 SiO 3 is able to improve salt stress tolerance in barley [ 126 ] and in maize growing under drought stress [ 127 ]. However, as far as we know, increased production under stress was not reported using this silicon compound.…”