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Plant Breeding

Which of the ...

Question

Which of the following is NOT a chemical inhibitor of seed dormancy?

A

Ethylene

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B

Gibberellins

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C

Cytokinin

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D

Auxin

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Solution

The correct option is D Auxin
Auxin is a plant hormone which is produced by the growing apices of stems and roots. It induces seed dormancy by promoting abscissic acid. Abscissic acid is responsible for induction and maintenance of seed dormancy.

Ethylene, gibberellins and cytokinins break seed dormancy and promote seed germination.

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