Which of the following promotes both leaf and fruit growths?
Correct answer: B. Gibberellins.
- A. Auxins.
- B. Gibberellins.
- C. Abscisic acid.
- D. Ethane.
Explanation
Gibberellins promote leaf and fruit growths.
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About Plant Growth Regulators
Plant growth regulators are chemical messengers that control growth, development and responses to the environment. The topic covers auxins, gibberellins, cytokinins, abscisic acid and ethylene, including cell elongation, apical dominance, tropisms, seed germination, dormancy, fruit ripening and leaf fall, with growth promoters distinguished from inhibitors.
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