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

Phenolic acid

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Para - ascorbic acid

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Gibberellic acid

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Abscisic acid

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Solution

The correct option is C Gibberellic acid
Gibberellic acid and abscisic acid are plant hormones that are antagonist in action.
Abscisic acid and phenolic acid maintains seed dormancy by inhibiting seed germination whereas gibberellic acid breaks seed dormancy.

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