DENDROLOGY

TREE PHYSIOLOGY

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How does temperature affect the rate of transpiration?
A
As temperature increases the rate of transpiration decreases
B
As temperature increases the rate of transpiration increases.
C
As temperature increases the rate of transpiration stays constant
D
None of the above
Explanation: 

Detailed explanation-1: -Transpiration is the evaporation of water from plants that occurs in the leaves during photosynthesis, when stomata open and CO2 and O2 pass through. As the temperature rises, the water evaporates faster, so plants sweat faster at higher temperatures.

Detailed explanation-2: -Temperature plays a major role in the rate of transpiration. As the temperature increases, transpiration will increase due to a higher concentration in sunlight and warm air.

Detailed explanation-3: -Transpiration is affected by air movement. As the movement of air increases, the concentration gradient is increased, so the rate of transpiration increases. Transpiration is affected by light intensity. As the light intensity decreases, the stomata close up and there is a reduction in photosynthesis.

Detailed explanation-4: -Temperature: Transpiration rates go up as the temperature goes up, especially during the growing season, when the air is warmer due to stronger sunlight and warmer air masses.

Detailed explanation-5: -The rate of transpiration decreases with decrease in temperature and decrease in light intensity.

There is 1 question to complete.