Phytoremediation of Brazilian tree species in soils contaminated by herbicides
2018
dos Santos, Naiane Maria Corrêa | da Costa, Vitor Antunes Martins | de Araújo, Fillipe Vieira | Alencar, Brenda Thaís Barbalho | Ribeiro, Victor Hugo Vidal | Okumura, Fabiano | Simeone, Maria Lucia Ferreira | dos Santos, José Barbosa
The phytoremediation potential of Brazilian trees species Calophyllum brasiliense, Eremanthus crotonoides, Hymenaea courbaril, Inga striata, and Protium heptaphyllum was investigated for contaminated soils containing ametryn and hexazinone. Visual injury, chlorophyll content, plant height, leaf temperature, leaf number, and water-efficient use were evaluated. Residual herbicides at soil substrates were analyzed by LC/MS. Among the species C. brasiliense and H. courbaril were tolerant to both herbicides. P. Heptaphyllum presented tolerance at ametryn treatment. E. crotonoides, I. striata, and P. heptaphyllum died in hexazinone treatment. A high content of residual ametryn was found for E. crotonoides. In ametryn treatment, residual herbicide has decreased for C. brasiliense and E. crotonoides species. C. brasiliense highlighted among others becoming a good agent for phytoremediation of soils contaminated with traces of ametryn and hexazinone.
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