Bakane disease is caused by :

Fungal toxin

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Growth hormone released by fungal infection.

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Change in photoperiod

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Inadequate nutrients

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Solution

The correct option is A Growth hormone released by fungal infection.
Bakanae, from the Japanese for "foolish seedling", is a disease that infects the rice plant. It is caused by the fungus Gibberella fujikuroi, the metabolism of which produces a surplus of gibberellic acid (growth hormone).

So, the correct answer is 'Growth hormone released by a fungal infection'

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