A winter bud begins winter with an amount of abscisic acid to maintain dormancy.Dormancy is broken in the spring because of
A) a gradual reduction in abscisic acid over winter.
B) an increase of abscisic acid production by the meristem within the bud.
C) an increase in cytokinin in the leaves.
D) a gradual reduction of auxin in the shoot tip.
E) a gradual increase in ethylene production by the meristem within the bud.

Question

Quizplus · Accepted Answer

Dormancy in winter buds is primarily maintained by abscisic acid, and its reduction over winter allows the bud to break dormancy in spring.

A Winter Bud Begins Winter with an Amount of Abscisic