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Question
Vernalisation can be replaced by the action of
Vernalisation can be replaced by the action of
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Solution
The correct option is C Gibberellin
Gibberellin as substitute for vernalization. Many plants which require cold treatment also require proper photoperiodic treatment for the induction of flowers, without which vernalization does not have any effect. If such plants are treated with gibberellins, they produce flowers without subjecting the plants to cold and photoperiodic treatments. For example, Henbane is a rosette leaved long day plant which requires cold treatment for flowering. If such untreated plants are sprayed with GAs, the plants produce flowers.
Gibberellin
Gibberellin as substitute for vernalization. Many plants which require cold treatment also require proper photoperiodic treatment for the induction of flowers, without which vernalization does not have any effect. If such plants are treated with gibberellins, they produce flowers without subjecting the plants to cold and photoperiodic treatments. For example, Henbane is a rosette leaved long day plant which requires cold treatment for flowering. If such untreated plants are sprayed with GAs, the plants produce flowers.
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