Silicon exhibits dose-dependent impact on barley growth

Abstract

As population growth accelerates, agriculture’s significance in our lives remains paramount. However, this surge in population has led to land degradation and increased food scarcity. The impact of silicon (Si) on plants has garnered significant attention in agricultural research. This study was aimed at examining the impact of Si on barley (Hordeum vulgare) plants by administering varying concentrations (5µM, 10µM, 20µM, 50µM, 100µM, 200µM, 500µM, 1000µM) and assessing their effects on plant growth parameters, particularly root and shoot lengths, and root fresh weight. Our study employed a controlled experimental setup to observe how barley plants respond to varying concentrations of Si. The data indicates that Si concentrations up to 10µM offer advantageous effects on barley compared to the control group, suggesting its potential in bolstering agricultural productivity. Similarly, concentrations of 20µM, 50µM, and 100µM were identified as safe for plant growth, opening avenues for their agricultural utilization. However, concentrations of 500µM and 1000µM resulted in complete inhibition of plant growth, emphasizing the necessity for cautious Si application in agriculture to prevent adverse impacts on crop yields. These findings underscore the importance of fine-tuning Si concentrations in agricultural practices to optimize benefits while mitigating potential risks to plants.