Bakanae disease of rice seedlings is related to discovery of
A
auxin
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B
gibberellin
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C
cytokinin
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D
ethylene
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Solution
The correct option is B gibberellin The ‘bakanae’ (foolish seedling) disease of rice seedlings is caused by a fungal pathogen Gibberella fujikuroi. The appearance of symptoms of the disease in rice seedlings was reported when they were treated with sterile filtrates of the fungus. The active substances was later identified as gibberellic acid.