Indole-3-butyric acid is widely used in agriculture and horticulture as a rooting hormone to promote the development of roots in plant cuttings. It is particularly effective in stimulating root growth in woody plants, ornamentals, and fruit trees, enhancing their ability to establish and thrive. In tissue culture, it is employed to induce root formation in plantlets, aiding in the propagation of genetically identical plants. Additionally, it is used in grafting to improve the success rate by encouraging the fusion of plant tissues. Its application is also seen in improving the survival rate of transplanted seedlings by enhancing root system development, ensuring better nutrient uptake and overall plant health.