The study looked at how shading affects the photosynthesis of two types of strawberry plants. They found that shading caused a decrease in photosynthesis rate, but an increase in quantum efficiency. The chlorophyll content increased slightly, while the insoluble protein content decreased. The activity of key enzymes involved in photosynthesis also decreased under shading conditions. Overall, shading had a negative impact on the photosynthetic process in the strawberry plants.