Botany-Growth Regulators
NEET Botany Growth Regulators MCQ Question
Type: MCQ-fact-Hard-Class 11
Which plant growth regulator was identified as the active substance responsible for the symptoms of the 'bakanae' disease in rice seedlings?
A
Gibberellic acid
B
Auxin
C
Kinetin
D
Abscisic acid
Correct Answer
Option A
Detailed Explanation
The 'bakanae' disease of rice seedlings was caused by the fungal pathogen Gibberella fujikuroi, and the active substance identified that caused the symptoms was gibberellic acid.
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