Mitigating Activity of Humic Substances and their Si-enriched Derivatives in relation to Wheat Seedlings under Salt-Stress Condition

摘要

Humic substances (HS) are known to possess bioactivating properties in relation to plants. Mitigating activity of HS is observed under various stress conditions including both biotic and abiotic ones, therefore non-specific action of HS towards plants can be hypothesized. The main non-specific damage induced by all the stresses is the plant cell injury. As silicon is responsible for cell wall stability, artificial enrichment of HS with silicon could results in increase in their mitigating activity.