A diffusible inhibitor emanating from the shoot apex inhibits the development of lateral buds below the apical bud. What is this inhibitory effect called?

Question

Quizplus · Accepted Answer

Apical dominance is the phenomenon where the main, central stem of the plant is dominant over (i.e., grows more strongly than) other side stems; it is caused by the plant hormone auxin produced in the shoot apex (tip of the plant or main stem). This inhibits the growth of lateral buds into branches.

A Diffusible Inhibitor Emanating from the Shoot Apex Inhibits the Development