Question

Which of the following factors is the most important in the regulation of transpiration?

• A. Relative humidity
• B. Temperature
• C. Light
• D. Wind

Answer 1

Answer: (B)

Temperature

Transpiration is the process of evaporation of water from the aerial parts of the plants that is the leaves and to control the temperature of plants, they loses the water hence temperature is most important in regulation of transpiration.

So, the correct answer is 'Temperature'.