Any response of a plant to the relative lengths of light and darkness is referred to as
A) gravitropism.
B) photoperiodism.
C) phototropism.
D) thigmotropism.
E) thigmomorphogenesis.

Question

Quizplus · Accepted Answer

Photoperiodism is the physiological reaction of organisms to the length of day or night, commonly observed in plants in relation to flowering, germination, and other developmental processes.

Any Response of a Plant to the Relative Lengths of Light