Anais do Evento

The objective of this work was to evaluate the biomass of plants of the Poaceae family used in the phytoremediation of a soil with the presence of potentially toxic metals. The experiment was carried out in a greenhouse of the Escola de Agronomia, Universidade Federal de Goiás, Goiânia – GO, with a dystrophic red Latosol with a clayey texture from an area with outcrop of serpentinite rock, containing high levels of Cr and Ni. The experimental design was in randomized blocks, with 5 treatments and 4 replications. The treatments were composed of: sugarcane, energy cane, elephant grass, capiaçu grass and spontaneous flora. The plants were cut at 250 days after planting and height, stem diameter, number of tillers, green mass and dry mass were analyzed. Data were submitted to analysis of variance and Tukey test, both at 5% error probability. Elephant grass had the highest number of stems. The spontaneous flora had the highest number of tillers, due to the presence of brachiaria plantaginea and the lowest green mass. Plant growth and development were not harmed by the high levels of Cr and Ni, showing that plants have potential for phytoremediation of soils contaminated by metals.