Leaf aging is increased by which of the plant hormone?

Cytokinin

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Abscisic Acid

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Gibberellin

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Auxin

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Solution

The correct option is B
Abscisic Acid

Leaf aging and the dropping of leaf is controlled by the plant growth hormone named abscisic acid (ABA). It also helps control the dormancy of the embryo in the seed and helps to sustain the plant in adverse conditions.

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Similar questions

Q. What are the exact functions of the plant hormones(Auxin,Cytokinins,Gibberellins,Abscisic acid)?

Question 20
The substance that triggers the fall of mature leaves and fruits from plants is

(a) auxin
(b) gibberellin
(c) abscisic acid
(d) cytokinin

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

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

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

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

Q. Choose the right from the following.
i. In light, hormone auxin, helps the cells to grow longer in plants .
ii. Plant hormone gibberellins helps in growth of a stem.
iii. Cytokinins inhibits cell division.
iv. Abscisic acid promote growth in plants.

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Leaf aging is increased by which of the plant hormone?

The correct option is B Abscisic Acid Leaf aging and the dropping of leaf is controlled by the plant growth hormone named abscisic acid (ABA). It also helps control the dormancy of the embryo in the seed and helps to sustain the plant in adverse conditions.

The correct option is B
Abscisic Acid

Leaf aging and the dropping of leaf is controlled by the plant growth hormone named abscisic acid (ABA). It also helps control the dormancy of the embryo in the seed and helps to sustain the plant in adverse conditions.