Jasmonic acid is widely used in agriculture to enhance plant defense mechanisms against pests and diseases. It acts as a signaling molecule, triggering the production of defensive compounds that protect plants from herbivores and pathogens. Additionally, it promotes root growth and improves stress tolerance, helping plants withstand adverse conditions like drought and salinity. In horticulture, it is applied to regulate plant growth and development, including seed germination, flowering, and fruit ripening. Its role in inducing systemic acquired resistance makes it a valuable tool in sustainable farming practices, reducing the need for chemical pesticides.