The study looked at how different levels of light intensity affect the photosynthesis of Panax notoginseng plants. They found that moderate shading helps the plant maintain its ability to protect itself from too much light, but too much shading can harm its photosynthesis. The plant's ability to use light energy and avoid damage decreases as light intensity decreases. Overall, the research shows that Panax notoginseng plants need the right amount of light to thrive and stay healthy.