Canopy temperature is a measure of the temperature of the foliage and branches of a plant canopy. It plays a crucial role in plant physiology, as it reflects the plants' response to environmental conditions such as sunlight, air temperature, and water availability. Monitoring canopy temperature can provide valuable insights into plant stress levels, water needs, and overall health. Researchers often use infrared thermometers or thermal imaging cameras to measure canopy temperature in various agricultural and ecological studies. By analyzing changes in canopy temperature, researchers can better understand how plants respond to their environment and make informed decisions about irrigation, pest management, and crop productivity.