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Question

Name the plant hormone associated with apical dominance.

A
Auxin
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B
Ethylene
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C
Cytokinin
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D
None of the above
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Solution

The correct option is A Auxin
  • Apical dominance is a phenomenon wherby, the inhibition of the growth of lateral buds occurs due to the terminal bud of a shoot.
  • It is caused by the production of IAA (auxin) in abundance by the apical bud.
  • This auxin is transported basipetally from the apical bud.
  • The auxin causes the lateral buds to remain dormant.

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