Question:
Flower inducing hormone in pineapple
Flower inducing hormone in pineapple
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A classic NCERT fact: Ethylene promotes flowering in pineapple and is also used for synchronized fruit ripening in several fruits.
Updated On: Jun 12, 2026
- Auxin and Ethylene
- Auxin and Cytokinin
- Gibberellin and Ethylene
- Ethylene and Cytokinin
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The Correct Option is A
Solution and Explanation
Concept:
Plant growth regulators influence flowering, fruiting, dormancy and many other developmental processes.
In pineapple cultivation, flowering can be artificially induced using specific plant hormones.
Step 1: Role of ethylene. Ethylene is widely used commercially to induce flowering in pineapple. Application of ethylene promotes uniform flowering and synchronized fruit production.
Step 2: Role of auxin. Auxins indirectly stimulate ethylene production within plant tissues. Because of this interaction, auxins are also associated with flowering induction in pineapple.
Step 3: Examine other hormones. Cytokinins primarily promote cell division. Gibberellins generally stimulate stem elongation and bolting. Neither combination is the standard answer for pineapple flowering induction.
Step 4: Final conclusion. The hormones associated with flowering induction in pineapple are: \[ \boxed{\text{Auxin and Ethylene}} \] Hence option (A) is correct.
Step 1: Role of ethylene. Ethylene is widely used commercially to induce flowering in pineapple. Application of ethylene promotes uniform flowering and synchronized fruit production.
Step 2: Role of auxin. Auxins indirectly stimulate ethylene production within plant tissues. Because of this interaction, auxins are also associated with flowering induction in pineapple.
Step 3: Examine other hormones. Cytokinins primarily promote cell division. Gibberellins generally stimulate stem elongation and bolting. Neither combination is the standard answer for pineapple flowering induction.
Step 4: Final conclusion. The hormones associated with flowering induction in pineapple are: \[ \boxed{\text{Auxin and Ethylene}} \] Hence option (A) is correct.
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