Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?
Correct answer: A. Gibberellins
- A. Gibberellins
- B. Cytokinins
- C. Auxins
- D. Ethene.
Explanation
Gibberellins can promote flowering in many long-day plants and therefore oppose abscisic acid, which generally suppresses growth and flowering under these conditions. Cytokinins may also influence flowering, so students often choose them, but the standard antagonistic hormone pair tested here is abscisic acid and gibberellins.
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