Fito acumulación en solanum nigrum (mortiño) aplicando trichoderma spp en suelos contaminados con cadmio

Abstract

The heavy metal cadmium (Cd) is present in agriculture as a non-essential element, which has motivated society to seek clean technologies through phytoremediation. For this reason, the aim of this research is to evaluate the phytoaccumulation capacity of Solanum nigrum (mortiño) in cadmium-contaminated soils, through the application of Trichoderma spp. and the analysis of absorption at different physiological stages. Cd was applied to the potting soil where the plant grew, and three groups were established, a control and two treatments that received Trichoderma spp in doses of 1cc and 2 cc per plant. Cadmium uptake was evaluated in the vegetative parts (root and leaf) at 75 and 125 days of plant age. The results revealed that Solanum nigrum uptakes Cd naturally and that when Trichoderma spp. was applied at different doses, its uptake capacity accelerated. The treatments of Trichoderma spp with a dose of 1cc showed higher Cd uptake in the leaves with 22.77 mg/kg. On the other hand, with the 2cc treatment, the highest uptake was in the roots with 14.07 mg/kg. In conclusion, Solanum nigrum is apt to capture Cd from the soil and the application of Trichoderma spp at a dose of 1cc is more efficient for the phytoaccumulation of cadmium in contaminated soils