Last time we introduced the idea of water flow in general terms of movement as a function of pressure gradients.
Water always moves in the direction of more negative water potential.
Water loss from a plant as a result of pressure differences is called transpiration . As I introduce water flux, note that the equation we will use describes the flux of anything . As the resistance increases, the hydraulic conductivity decreases. Plant physiological ecologists frequently use both terms to describe the ease that water moves through materials. Keep in mind that L differes for the different media through which water travels.