Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Ethylene promotes rapid internode or petiole elongation in deep water rice plants. Reason (R): Gibberellins promote internode elongation just prior to flowering in rosette plants like beet and cabbage. In the light of the above statements, choose the most appropriate answer from the options given b

Step-by-step solution

Assertion (A) is a correct statement. Ethylene promotes rapid internode or petiole elongation in deep water rice plants, helping the leaves or upper parts of the shoot to remain above water. Reason (R) is also a correct statement. Gibberellins promote bolting, which is internode elongation just prior to flowering, in rosette plants like beet and cabbage. However, Reason (R) is not the correct explanation of Assertion (A). The two statements describe independent physiological effects caused by two different plant gr