🔎 With each passing year, the labels of biostimulants are increasingly filled with new and complex ingredients. Some are already familiar to farmers, such as phytohormones like auxins, cytokinins, and gibberellins, while others are almost new. 🧐

✏️ But not all is so scary with them, as we will try to explain in more detail the role and functions of “new generation” phytohormones.

🔷 BRASSINOSTEROIDS – have been identified as the sixth plant hormone after classical plant hormones auxin, gibberellins, cytokinin, abscisic acid, and ethylene. They are structurally similar to animal steroid hormones. Brassinosteroids play a crucial role in various aspects of plant biology: cell division and elongation, root growth, photomorphogenesis, differentiation of stomata and vessels, seed germination, immunity, and reproduction. They play a role in shaping the plant’s response to stress, such as cold, drought, salinity, diseases, heat, and nutrient deficiency. Even at very low concentrations (10⁻¹⁰ M and below), this subfamily of hormones regulates a wide range of processes in plant development and responses to environmental stresses.

🔶 TRIACONTANOL – as an endogenous plant growth regulator, promotes numerous metabolic processes in the plant, which contributes to their better growth and development. Moreover, it plays an important role in forming stress resistance and mitigating the effects of stress in cultivated plants by activating stability mechanisms. Triactanol activates the activity of the root system and promotes the development of vegetative mass, enhances carbon dioxide assimilation and improves photosynthesis, increases chlorophyll content, increases enzymatic activity, and promotes mineral uptake, which enhances the efficiency of using primary nutrients. It also promotes seed germination and rooting, increases the content of dry protein, which contributes to plant ripening.

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