The study looked at what factors affect how well tea plants can make food through photosynthesis. They measured the photosynthesis of tea plants at different growth stages and found that the amount of sunlight available was the most important factor in how well the plants could make food. Other factors like temperature, CO2 levels inside the plant, and how open the plant's pores were also played a role in photosynthesis. The researchers found that the plants had the highest photosynthesis rate during the blooming stage.