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Assertion: Cytokinin are antisenescent. ...

Assertion: Cytokinin are antisenescent.
Reason : Effects of cytokinins is antagonistic to ethylene.

A

If both the assertion and the reason are true and the reason is a correct explanation of the assertion.

B

If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C

If the assertion is true but the reason is false

D

If the assertion and reason is false but reason is true

Text Solution

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The correct Answer is:
B
(b) When cytokkinins are added directly to the abscission layar, senescence of the zone is atarded. This delayes the degradation of protein and chlorophyll of the plant parts and hence delays senescence.As they act as antisenescent, they act as antagonistic to ethylene which accelerate senescence.
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