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The hormone responsible for apical dominance is________

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in Biology – Class 11 by (272k points)
The hormone responsible for apical dominance is________

(a) IAA

(b) ABA

(c) GA

(d) Kinetin

This question was posed to me by my school principal while I was bunking the class.

My enquiry is from Growth Regulators in Plants in division Plant Growth and Development of Biology – Class 11

1 Answer

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Best answer
Correct option is (a) IAA

Easy explanation: Indole-3-acetic acid (IAA) is the hormone responsible for apical dominance. ABA promotes abscission of older parts. GA delays senescence. Kinetin helps in removing apical dominance and aiding lateral growth.

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