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Plant Growth Regulators

Choose the co...

Question

Choose the correct answer from the alternatives given.
Which of the following plant hormones is a growth inhibitor?

A

Abscisic acid

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B

Auxin

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C

Cytokinin

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D

Gibberellin

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Solution

The correct option is A Abscisic acid
It acts as a general plant growth inhibitor and an inhibitor of plant metabolism. ABA inhibits seed germination. ABA stimulates the closure of stomata in the epidermis and increases the tolerance of plants to various kinds of stresses.
So, the correct option is 'Abscisic acid'.

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