N6-(delta 2-Isopentenyl)-adenine is primarily used in plant biology and agriculture as a cytokinin, a type of plant hormone that promotes cell division and growth. It is applied to enhance the growth of plant tissues in vitro, particularly in plant tissue culture, where it helps in the formation of shoots and the proliferation of cells. This compound is also utilized in horticulture to improve the yield and quality of crops by stimulating the development of fruits and delaying senescence in leaves. Additionally, it plays a role in research studies focused on understanding the mechanisms of plant growth and development, aiding in the optimization of agricultural practices.