in a study carried out in Tuscany (Italy), in temperate
climate conditions and using a lysimeter. The authors found
average above-ground dry matter production of 3200 g/m2
and average WUE of 3.1 g/L. This would lead us to assume that also
growth conditions used for a lysimeter, in particular, irrigation,
drainage and fertilization, can affect ETcand final WUE compared
to a CWs with continuous water flow. By examining the aboveground biomass yields for the two macrophytes being used, for
each of the two test years, yields were greater for giant reed than
for umbrella sedge. Furthermore, as giant reed was also found to
have higher WUE rates for both years, we can assume that the
increase in above-ground biomass is directly proportional to an
increase in WUE, in agreement with