Apical dominance is not affected by

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(B) Apical dominance is primarily controlled by auxins,which are a class of plant hormones that include Indole acetic acid $(IAA)$,Indole acetaldehyde

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Gibberellic acid

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(B) Apical dominance is primarily controlled by auxins,which are a class of plant hormones that include Indole acetic acid $(IAA)$,Indole acetaldehyde,and Indole butyric acid $(IBA)$. These substances promote the growth of the apical bud while inhibiting the growth of lateral buds. Gibberellic acid $(GA)$,on the other hand,is primarily involved in stem elongation,seed germination,and flowering,but it does not play a direct role in maintaining apical dominance.

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