Finally, the drooping movement in the star fruit trees helps with reducing leaf damage, protecting it from increased leaf temperature, as well as losing photochemical efficiency (light energy being converted to be used for photosynthesis) from the sun. Excess radiation will act as a stimulus to these leaves, and they will respond with rapid movement. The leaf moving to a position that makes it parallel to the light source is important because the leaves won’t be directly facing the sun. This information was found through recording sun to leaf area exposure, canopy diameter, and root growth. Trees had different levels of sun exposure, and how the tree responded was measured and analyzed.