HORTICULTURE

Detailed explanation-1: -Atmospheric pressure-The rate of transpiration increases with the decrease in the atmospheric pressure and vice-versa. Humidity-The amount of water vapour present in the air is called humidity. If the air already has too much water vapour, then the transpiration will be decreased.

Detailed explanation-2: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air. Increased movement of the air around a plant will result in a higher transpiration rate.

Detailed explanation-3: -Several factors can affect the rate of transpiration, including temperature, humidity, air movement, and light intensity. Warmer temperatures generally lead to higher transpiration rates, while higher humidity levels decrease the rate of water loss.

Detailed explanation-4: -The rate of transpiration Increases with the intensity of sunlight, high temperature, dry air, the velocity of wind, the high water content of the leaf. The rate of transpiration decreases with the closure of stomata, high humidity, high atmospheric carbon dioxide level, the low water content of leaf, shedding of leaf.

Detailed explanation-5: -The transpiration rate is inversely proportional to the humidity in air. High humidity reduces the outward diffusion of water through the stomata. As a result, less water is lost, and lower transpiration rates are observed.