Indole-3-acetic hydrazide is primarily utilized in agricultural research and practices as a growth regulator. It plays a significant role in promoting plant growth by stimulating cell elongation and division, which is crucial for the development of roots and shoots. This compound is often applied in the formulation of plant growth hormones, aiding in the enhancement of crop yield and quality. Additionally, it is used in studies related to plant physiology and biochemistry to understand the mechanisms of growth regulation and stress responses in plants. Its application extends to tissue culture, where it helps in the propagation of plants under controlled conditions, ensuring the production of healthy and disease-free plantlets.