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  • When the upper side (adaxial side) of the petiole of the leaf grows faster than the lower side (abaxial side), the leaf curves downward. This process is controlled by hormone<div class='qna-opt

When the upper side (adaxial side) of the petiole of the leaf grows faster than the lower side (abaxial side), the leaf curves downward. This process is controlled by hormone

Option: 1

Gibberellin


Option: 2

Ethylene


Option: 3

Cytokinin


Option: 4

Abscisic acid
 


Answers (1)

best_answer

 When the upper side (adaxial side) of the petiole of the leaf grows faster than the lower side (abaxial side), the leaf curves downward. This is called as epinasty. Ethylene causes leaf epinasty in tomato and other dicot plants such as potato, pea and sunflower

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Ritika Harsh

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