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Question
Gibberellins were first discovered in Japan when rice plants were suffering from bakane (the foolish seedling disease) caused by a fungus Gibberella fujikuroi.
Give two functions of this phytohormone.
Solution
Gibberellin induces bolting, i.e. growth of internode in rosette plants. Gibberellin also induces seed germination by breaking seed dormancy.
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Fill in the places with appropriate word/words.
In addition to auxin, a ______ must be supplied to culture medium to obtain a good callus in plant tissue culture.
Gibberellins were first discovered in Japan when rice plants were suffering from bakane (the foolish seedling disease) caused by a fungus Gibberella fujikuroi.
Which property of Gibberellin caused foolish seedling disease in rice?
The rice seedlings infected with fungus Gibberlla fujikuroi is called foolish seedlings? What was the reason behind it?
Many discoveries in science have been accidental. This is true for plant hormones also. Can you justify this statement by giving an example? Also what term is used for such accidental findings?
