How do light, wind, and mist affect the gradient of water potential from stem to leaf in a plant?

it has to do with AP Bio lab 9, but its not the actual analyis question, this is a question for my understanding.








thanks! :]How do light, wind, and mist affect the gradient of water potential from stem to leaf in a plant?
Water goes from an air of high water potential to an area of low water potential. If the outside environment has a low water potential water will move out through transpiration and the pressure will also draw water from the stem to the leaves as well as from the leafs to the surrounding are.





Light lowers outside water potential....thus there will be an increased amount of transpiration. Wind also lowers the water potential and there will be an increase in transpiration.





Mist, however, increases water potential in the surrounding area, thus decreasing the rate of transpiration.








Hope this helped!