found WUE values for barley and wheat to
be 3.2–5.7 and 3.1–9.2 g/L, respectively. The differences between
these species are linked to the fact that they are partly C3plants
and partly C4species, as they behave differently regarding water
use (which is greater for C4plants). C4 plants are able to maintain a
certain photosynthetic rate with lower intercellular CO2 values,
keeping the stomata partially closed, with a consequent reduction
in water loss. Both giant reed and umbrella sedge were found to