Abscisic acid encourages flowering in short-day plants but suppresses it in long-day plants. Which hormone acts in opposition to abscisic acid regarding the regulation of flowering?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Biology Mcqsbiology-mcqs
Published
23 May 2018
Last updated
28 May 2026

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Explanation

Gibberellins counteract the effects of abscisic acid on flowering by promoting flowering in long-day plants, whereas abscisic acid inhibits it. Other hormones like cytokinins, auxins, and ethylene do not have this antagonistic relationship with abscisic acid in flowering regulation.

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