• DOI:10.3390/plants10040777
• Corpus ID: 233395679

Silicon Stimulates Plant Growth and Metabolism in Rice Plants under Conventional and Osmotic Stress Conditions

@article{RamrezOlvera2021SiliconSP,
  title={Silicon Stimulates Plant Growth and Metabolism in Rice Plants under Conventional and Osmotic Stress Conditions},
  author={Sara Monzerrat Ram{\'i}rez-Olvera and Libia Iris Trejo-T{\'e}llez and Fernando Carlos G{\'o}mez-Merino and Lucero del Mar Ruiz-Posadas and Ernesto Gabriel Alc{\'a}ntar-Gonz{\'a}lez and Crescenciano Saucedo-Veloz},
  journal={Plants},
  year={2021},
  volume={10}
}

• Sara Monzerrat Ramírez-Olvera, L. Trejo-Téllez, +3 authors C. Saucedo-Veloz
• Published 1 April 2021
• Medicine
• Plants

Exogenous silicon (Si) can enhance plant resistance to various abiotic factors causing osmotic stress. The objective of this research was to evaluate the application of 1 and 2 mM Si to plants under normal conditions and under osmotic stress. Morelos A-98 rice seedlings, were treated with 1 and 2 mM SiO2 for 28 d. Subsequently, half of the plants were subjected to osmotic stress with the addition of 10% polyethylene glycol (PEG) 8000; and continued with the addition of Si (0, 1 and 2 mM SiO2) for both conditions. The application of Si under both conditions increased chlorophyll b in leaves, root volume, as well as fresh and dry biomass of roots. Interestingly, the number of tillers, shoot fresh and dry biomass, shoot water content, concentration of total chlorophyll, chlorophyll a/b ratio, and the concentration of total sugars and proline in shoot increased with the addition of Si under osmotic stress conditions. The addition of Si under normal conditions decreased the concentration of sugars in the roots, K and Mn in roots, and increased the concentration of Fe and Zn in shoots. Therefore, Si can be used as a potent inorganic biostimulant in rice Morelos A-98 since it stimulates plant growth and modulates the concentration of vital biomolecules and essential nutrients.