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Nicotiana tobacum, a short day plant , w...

Nicotiana tobacum, a short day plant , when exposed toi more than critical period of light fails to flower .Explain.

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Short day plants are those plants that flower only when the photoperiod (exposoure to duration of light ) is below critical period . Tobacco , being a short day plant is unable to show flowering when exposed to light above than the critical period
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