The hormones responsible for apical dominance is

IAA

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ABA

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Florigen

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Solution

The correct option is A IAA
Apical dominance is a phenomenon in which central stem is dominant and lateral branches are suppressed. It is due to plant hormones produced in the tip of the shoot. IAA, a type of auxin hormone is responsible for apical dominance and cytokinin hormone is responsible for breaking the apical dominance.
So, the correct answer is 'IAA'

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