Fig. 1. Aboveground (shoots) and belowground (roots) biomass for each treatment in
the cultures 1 and 2 (HNS, Hoagland nutrient solution; CWW, treated wastewater from
a conventional treatment plant; LWW, treated wastewater from a lagoon). Error bars
represent the standard error of the total dry weight. Treatments with different letters
are statistically different according to the Tukey test at P < 0.05 for total biomass (roots and shoots).