Widely used in plant tissue culture to promote root formation and callus induction. Acts as a natural auxin, regulating cell elongation, division, and differentiation. Commonly applied in micropropagation and cloning of plants. Enhances adventitious root development in cuttings, making it valuable in horticulture and agriculture. Used in combination with cytokinins to control morphogenesis in vitro. Also employed in research to study plant growth and hormone signaling pathways.