Hormone that breaks dormancy of seeds/potato tuber is

IAA

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ABA

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Zeatin

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Gibberellin

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Solution

The correct option is D Gibberellin
Gibberellin is a plant hormone that is involved in various physiological processes. It breaks dormancy of seeds and potato tuber and induces germination of seeds. It causes elongation of stem in plants.
Thus, the correct answer is option D.

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Which plant hormone helps in breaking seed dormancy?

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