Assertion (A): The site of perception of light/dark duration for inducing flowering is the leaves.
Reason (R): The hormonal substance responsible for flowering migrates from the leaves to the shoot apices.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
The assertion (A) states that the site of perception of light/dark duration for inducing flowering is the leaves.
The reason (R) states that the hormonal substance responsible for flowering migrates from the leaves to the shoot apices, which explains how the perception of light/dark duration occurs in the leaves and its effect on flowering in the shoot apices. The reason provides an explanation for the assertion, making option 1 the correct answer.