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Question

Biology Question on Plant Growth Regulators

Apical dominance can be overcome by application of

A

auxin

B

cytokinin

C

florigen

D

gibberellin

Answer

cytokinin

Explanation

Solution

Presence of cytokinin in an area causes preferential movement of nutrients towards it when applied to lateral buds, they help in their growth despite the presence of apical bud. They thus act antagonistically to auxin which promotes apical dominance.