Opening of flower buds and leaf buds is called;
Correct answer: A. Epinasty
- A. Epinasty
- B. Thermonasty
- C. Photonasty
- D. Seismonasty
Explanation
Epinasty refers to the downward or outward bending or opening of flower buds or leaf buds. It is a type of tropism, specifically a growth response in which the upper side of the bud or leaf grows slower than the lower side, resulting in the bending or opening of the bud or leaf.
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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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