Which of the following phytohormone is not associated with the promotion of growth in plants?

abscisic acid

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cytokinin

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auxin

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gibberellin

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Solution

The correct option is A abscisic acid

Abscisic acid is a plant hormone that functions mainly as a growth inhibitor.

Abscisic acid promotes the wilting and falling of leaves which is called abscission.

Abscisic acid promotes dormancy in seeds and buds. It also promotes the closing of stomata.

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Similar questions

P, Q, R and S are four major types of phytohormones. P is a phytohormone which functions mainly as a growth inhibitor. It promotes the wilting and falling of leaves. Q, R and S are phytohormones which all promote the growth of plants in various ways. Q is responsible for the phenomenon of phototropism in plants. R is involved mainly in shoot extensions. The phytohormone S helps in breaking the dormancy of seeds and buds. What are P, Q, R and S ? Give one reason each for your choice.

Question 12
Which of the following is not associated with growth of plants?

(a) Auxin
(b) Gibberellins
(c) Cytokinins
(d) Abscisic acid

Q. Which of the following phytohormone is not associated with the promotion of growth in plants?
(a) auxin
(b) abscisic acid
(c) gibberellin
(d) cytokinin

Q. Fill in the Blanks

A phytohormone not associated with plant growth is

Which of the following is not associated with growth of plants?

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Abscisic Acid

Standard XII Biology

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Which of the following phytohormone is not associated with the promotion of growth in plants?

The correct option is A abscisic acid Abscisic acid is a plant hormone that functions mainly as a growth inhibitor. Abscisic acid promotes the wilting and falling of leaves which is called abscission. Abscisic acid promotes dormancy in seeds and buds. It also promotes the closing of stomata.

The correct option is A abscisic acid

Abscisic acid is a plant hormone that functions mainly as a growth inhibitor.

Abscisic acid promotes the wilting and falling of leaves which is called abscission.

Abscisic acid promotes dormancy in seeds and buds. It also promotes the closing of stomata.