The typical conifer growth pattern of narrow tops and broad bases is strongly associated with the action of

Question

Quizplus · Accepted Answer

The typical conifer growth pattern of narrow tops and broad bases is strongly associated with the action of auxin. Auxin is synthesized in the apical meristem of the shoot tip and is responsible for cell elongation, which results in the characteristic narrow tops. As the tree grows taller and the branches spread out, auxin accumulates in the lower part of the tree, which results in the broadening of the base.

The Typical Conifer Growth Pattern of Narrow Tops and Broad