Question

apical dominance is caused by which hormone​

Answer 1

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Apical dominance is caused by Auxin hormone.

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Answer 2

Answer:

The apical bud produces a hormone, auxin, (IAA) that inhibits growth of the lateral buds further down on the stem towards the axillary bud. It was first discovered in 1934 that the plant hormone auxin likely regulates apical dominance.