Tolerance and remedial potential of trees submitted to atrazine and sulfentrazone in the rhizosphere

International Journal of Phytoremediation
Edson Aparecido Dos SantosErnani Lopes Possato

Abstract

Residual herbicides are important for agricultural production but they may be lost underground. Trees capable of removing or degrading these products are interesting to the agro system. The objective was to evaluate the tolerance and remedial potential of trees in soil contaminated by atrazine and sulfentrazone. The experiment was arranged in a 7 × 3 factorial scheme. Factor one was composed of Inga edulis Mart., Myrsine gardneriana A.DC., Schizolobium parahyba (Vell.) Blake, Toona ciliata M. Roem., Trichilia hirta L. and Triplaris americana L. Factor two consisted of monthly solutions of atrazine (1000 g ha-1), sulfentrazone (150 g ha-1) and water only (control), applied through subgrade irrigation. The following parameters were evaluated: visual intoxication, plant growth, and biomass accumulation. Cucumber biomass was used as an indicator of herbicide residues in soil. Symptoms of intoxication were found only in S. parahyba and T. americana. Growth and biomass of the species were not affected by herbicides, except for T. americana. The herbicides provided higher biomass for T. hirta. Saplings of I. edulis, M. gardneriana, S. parahyba, T. ciliate, and T. hirta tolerate atrazine and sulfentrazone. Triplaris americana is sensit...Continue Reading

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Citations

Jun 24, 2021·Brazilian Journal of Biology = Revista Brasleira De Biologia·Edson Aparecido Dos SantosJosé Barbosa Dos Santos
Jul 6, 2021·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Philip N SmithKeith R Solomon

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