Botany - Plant Growth and Development Question with Solution | TestHub
BotanyPlant Growth and DevelopmentPlant Growth RegulatorsMedium2 minPYQ_2026
BotanyMediumsingle choice
Which of the following plant growth regulators promotes internode elongation prior to flowering in cabbage ?NEET 2026 (Re-NEET)
Options:
Answer:
C
Solution:
Gibberellins promote internode elongation just prior to flowering in rosette plants like cabbage, beet, and many other plants with a rosette habit. This phenomenon is known as bolting.
Ethephon is a source of ethylene, which promotes fruit ripening and abscission.
Abscisic acid acts as a general plant growth inhibitor and stress hormone.
Indole butyric acid is a synthetic auxin widely used to induce rooting in stem cuttings.
Answer: Gibberellin
Stream:NEETSubject:BotanyTopic:Plant Growth and DevelopmentSubtopic:Plant Growth Regulators
⏱ 2mℹ️ Source: PYQ_2026
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