Turfgrasses are composed of thousands of cells, all containing water, in which metabolic processes such as photosynthesis and respiration take place. Water makes up 80 to 90 percent of the total plant mass. If this level drops below 60 percent, these processes may slow and wilting will occur. Water is critically important for:
- Maintaining turgidity, which keeps plants standing upright
- Transporting nutrients and sugars through the plant
- Chemical reactions
- Transpirational cooling when water moves out of the leaves and evaporates
Munshaw, Gregg and Lee, Brad, "Irrigation Tips to Conserve Water and Grow a Healthy Lawn" (2014). Agriculture and Natural Resources Publications. 132.