Trimming a shrub will make it become more bushy (have more lateral growth) primarily due to a reduction in the amount of ____.
A) auxin
B) ethylene
C) abscisic acid
D) gibberellin
E) cytokinin

Question

Quizplus · Accepted Answer

Trimming a shrub reduces the amount of auxin, a plant hormone that promotes vertical growth and suppresses lateral growth. When the tips of branches, where auxin is produced, are removed, the suppression of lateral buds is reduced, leading to more bushy growth.

Trimming a Shrub Will Make It Become More Bushy (Have