Question

Write three factors that affect transpiration.

Answer 1

• Temperature: An increase in atmospheric temperature enhances the rate of water evaporation from the leaves, which subsequently increases the overall rate of transpiration.
• Humidity: When the atmospheric humidity is high, it reduces the moisture gradient between the inside of the leaf and the outside air, thereby decreasing the rate of transpiration.
• Light Intensity: The presence of bright sunlight stimulates the stomata to open widely, which directly accelerates the process of transpiration during the day