Which plant hormone helps in delaying senescence?

Ethylene

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Auxin

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Gibberellins

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Abscisic acid

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Solution

The correct option is C
Gibberellins

Senescence is a phenomenon of ageing of plant parts. Hormones play a vital role in either stimulating or delaying it. Ethylene is a gaseous hormone that stimulates ageing/ senescence. Gibberelline Is a plant hormone known to delay senescence, induce parthenocarpy and break dormancy during germination.

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Similar questions

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.

Pick out the correct statements.
I. Cytokinins especially help in delaying senescence.
II. Auxins are involved in regulating apical dominance.
III. Ethylene is especially useful in enhancing seed germination.
IV. Gibberellins are responsible for immature falling of leaves.

Q. Q. Which of the following pairs is/are correctly paired?

Plant Hormone	Functions
1. Auxin	Helps in the growth of plant tissue.
2. Cytokinin	Promotes cell division, delays aging of cells.
3. Ethylene	Inhibits growth and causes wilting of leaves, promoting dormancy of buds.
4. Gibberellin	This is a gaseous hormone that causes the ripening of fruits

Select the correct answer using the codes given below:

Q. Pick out the correct statements.
(A) Cytokinins specially help in delaying senescence.
(B) Auxins are involved in regulating apical dominance.
(C) Ethylene is especially useful in enhancing seed germination.
(D) Gibberellins are responsible for immature falling of leaves.

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

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