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Abscisic acid is called stress hormone a...

Abscisic acid is called stress hormone as it

A

Induces flowering

B

Breaks seed dormancy

C

Promotes leaf fall

D

Promotes stomatal closure.

Text Solution

Verified by Experts

The correct Answer is:
D
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Why is Abscisic acid called stress hormone in plants?

ABA (Abscisic Acid) is called a stress hormone. A. How this hormone overcome stress conditions ? B. From where where does this hormone get released in leaves ?

Assertion (A): Abscisic acid is a stress hormone. Reason (R): Stimulation of ABA occurs in adverse conditions.

Stress hormone is :

Abscisic acid causes

Abscisic acid causes

Abscisic acid causes

What is a stress hormone?

Assertion : Abscisic acid (ABA) is also called stress hormone. Reason : ABA increases the tolerance of plants to various kinds of stresses.

DINESH PUBLICATION-Plant Growth and Movements-RQ
  1. Which of the following is not a physiological effect/ an influence of ...

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  2. The phenomenon which shortens vegetative period and hastens flowering ...

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  3. Abscisic acid is called stress hormone as it

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  4. Hormone antagonistic ABA is

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  5. Two different plants associated with discovery of two different phytoh...

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  6. During seed germination, its stored food is mobilised by

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  7. The viability of seeds is tested by

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  8. In exponential growth formula, W(t)=W(0)e^(rt),e denotes

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  9. Which plant hormone was discovered as kinetin

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  10. Match the columns and choose the correct combination : {:(," I"...

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  11. Which growth regulator promotes root initiation, flowering and induced...

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  12. Assertion. On plotting the length of the root against time, a linear c...

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  13. Which plant hormone is baisc in nature

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  14. Select the activites associated with gibberellins (a) Apical dominan...

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  15. Match the columus and choose the correct combination {:("Growth Regu...

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  16. In which plant heterophyllous development occurs due to environment

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  17. Which statement regarding growth is false

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  18. Thermonastic movement is related to

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  19. Control of leaf, flower and fruit abscission and promotion of fruit r...

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  20. Removal of apical bud makes the plant

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