Apical dominance is caused by

Question

Apical dominance is caused by (A) abscisic acid in lateral bud (B) cytokinin in leaf tip (C) gibberellin in lateral buds (D) auxin in shoot tip.

Tardigrade Admin · Accepted Answer

According to Thimann and co-workers, auxin is responsible for the dominance of apical bud. The apical dominance is due to interaction between auxin and cytokinin. If the auxin concentration is higher than cytokinin, the apical bud will dominate the growth.

Q. Apical dominance is caused by

abscisic acid in lateral bud

cytokinin in leaf tip

gibberellin in lateral buds

auxin in shoot tip.

According to Thimann and co-workers, auxin is responsible for the dominance of apical bud. The apical dominance is due to interaction between auxin and cytokinin. If the auxin concentration is higher than cytokinin, the apical bud will dominate the growth.