Assertion: Strtification of seeds may promote their germination.
Reason: stratification promote gibberellin and cytokinins.

Options

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 both the assertion and reason are false

Answer

B

Explanation

Stratification of seeds may affect the disappearance of inhibitors and the build-up of germination promoters such as gibberellins and cytokinin. Natural stratification occurs when seeds shed in the fall are covered with cold soil, detours and snow. In artificial stratification layers of seed are alternated with layers of moistened sphagnum sand or some other appropriate material and stored at low temperature.