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 the assertion and reason is false but reason is true

Answer

B

Explanation

(b) Stratification of seeds may affect the disappearance of inhibitors and the buildup of germination promoters such as the sibberellins and cytokinins. Natural stratification occurs when seeds shed in the fall are covered with cold soil, debris and snow. In artificial stratification, layers of seeds are alternated with layers of moistened Sphagnum sand or some other appropriate material are stored at low temperatures.