What is a solartropism?

Answer 1

Solartropism is a hypothetical phenomenon hypothesized to explain how sunflowers and other plants with circular flowers follow the movement of the sun across the sky. It suggests that these plants are able to sense and track the sun's position to optimize their photosynthesis. However, scientific evidence for solartropism is still lacking, and other factors like circadian rhythms and growth hormones likely play a more significant role in sun tracking behavior.