Which of the following are the roles of ethylene as a plant…

Biology Plant Growth and Development Skill Builder Single Correct MCQ

Published on: August 14, 2026

Which of the following are the roles of ethylene as a plant growth regulator?

Germination in peanut seeds , ,

Root hair formation , ,

Respiratory climactic , and (E) ,

Male flowers in cucumber (E) Internode elongation in deep water rice (F) Decelerate abscission in fruits of walnut Options: , (E) and (F) and (E) and (F)

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Ethylene plays several roles including initiating germination in peanut seeds , promoting root hair formation , enhancing respiration rate during fruit ripening , and supporting internode elongation in deep water rice plants(E).
Ethylene promotes female flowers in cucumbers thereby increasing the yield . It accelerates abscission in flowers and fruits (thinning of cotton, cherry, walnut)(F).

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