DENDROLOGY

Detailed explanation-1: -As the wind blows faster, the water released by transpiration is carried away faster. So, rate of transpiration increases with velocity of wind speed.

Detailed explanation-2: -Increased movement of the air around a plant will result in a higher transpiration rate. If there is no wind, the air around the leaf is still and transpiration raises the humidity around each leaf. Wind moves saturated air, close to the leaf, away replacing it with less saturated air.

Detailed explanation-3: -Temperature: A rise in temperature increases the water loss by transpiration. Transpiration increases with an increase in temperature to a certain point. Stomata close when the temperature falls to very low or increases to very high ultimately ceasing the process of transpiration.

Detailed explanation-4: -The faster the wind speed, the greater the transpiration rate (if all other conditions are constant). This is because the movement of air across the surface of leaves causes evaporation of water from the mesophyll cells, and this loss of water must be replaced by water moving up the xylem vessels from the roots.

Detailed explanation-5: -Transpiration depends on diffusion. Winds cause air molecules to be blown away from the leaves. Because the wind removes water vapours from the surfaces of the leaves, there is a greater diffusion of water from the leaves. Hence, we can conclude that wind increases the rate of transpiration.