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प्रश्न
Bolting hormone is ______.
विकल्प
Auxin
Gibberellin
ABA
Ethylene
MCQ
रिक्त स्थान भरें
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उत्तर
Bolting hormone is Gibberellin.
Explanation:
Bolting is the sudden, rapid elongation of internodes followed by flowering in rosette plants like cabbage and beet. In nature, this is usually triggered by environmental cues like long days or cold temperatures, which cause the plant to produce natural gibberellins. Artificially applying gibberellin to these rosette plants can bypass these environmental requirements, inducing immediate bolting and premature flowering.
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