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  4. Which of the following is not an inhibitory substance governing seed dormancy ?

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Q. Which of the following is not an inhibitory substance governing seed dormancy ?

NEETNEET 2020Plant Growth and Development

Solution:

Gibberellic acid breaks seed dormancy by activating enzyme α - amylase. While abscisic acid and phenolic acid induce seed dormancy. So, the correct answer is 'Gibberellic acid'.