Which process contributes the most to generating the negative water potential in a leaf?

Question

Quizplus · Accepted Answer

The evaporation of water from mesophyll cells through stomata is the primary process that generates negative water potential in a leaf. As water leaves the cells, it creates a gradient that pulls water up from the roots, resulting in transpiration. The other options, such as root pressure, cuticle pressure, and movement of water from the veins into the leaf, do not contribute as significantly to the negative water potential in a leaf as compared to the evaporation of water from mesophyll cells.

Which Process Contributes the Most to Generating the Negative Water