9-Propenyladenine is primarily utilized in the field of plant biology and agriculture due to its cytokinin-like activity. It plays a significant role in promoting cell division and growth in plants, making it valuable for enhancing crop yield and quality. This compound is often applied in tissue culture techniques to stimulate shoot proliferation and improve the regeneration of plants. Additionally, it is used in research to study the mechanisms of plant hormone signaling and development. Its ability to influence plant growth processes makes it a useful tool in horticulture and agricultural biotechnology for optimizing plant performance and stress resistance.