Navegando por Autor "Vassão, Catharina Bertollini"

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    Dissertação
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    Potencial de gramíneas (poaceae) como fitorremediadoras em solo contaminado com herbicida
    (Universidade Estadual do Norte do Paraná, 2019-07-31) Vassão, Catharina Bertollini; Conte, Ana Maria; http://lattes.cnpq.br/1406959857364094; Conte, Ana Maria; http://lattes.cnpq.br/1406959857364094; Silva, Francisco Carlos Mainardes da; http://lattes.cnpq.br/9683269855531828; Lima, Claudinei Paulo de; http://lattes.cnpq.br/8352085023073169; Souza, Juliana Aparecida de; http://lattes.cnpq.br/1781930088707636; Matsumoto, Leopoldo Sussumu; https://orcid.org/0000-0001-5102-545X; http://lattes.cnpq.br/0857955043436449
    The process of remediation of contaminated soils refers to the reduction of the levels of contaminants to levels that are safe and compatible with the protection of human and environmental health, and may be of a physical, chemical or biological form. Pastes of picloram can remain in the soil for a long period after its use, offering risk of contamination and phytotoxification of susceptible species. In view of this, phytoremediation may represent an option for the decontamination of areas that have undergone intense applications of this herbicide. The objective of this study was to evaluate the potential of Zea mays, Oryza sativa, Sorghum bicolor, Pennisetum americanum, Avena sativa, with regard to the herbicide picloram, using soybean (Glycine max) as bioindicator plant. The experiment was carried out in a greenhouse at the Professor Eduardo Meneghel Rando School Farm, and the treatments were composed of a combination of the five species mentioned above, plus three doses of Picloram (control 0 L ha⁻¹, 3 L ha⁻¹ and 6 L ha⁻¹) and two soil textures, one medium and one very clayey. Plant height, leaf number, stem diameter, Picloram phytotoxicity and fresh and dry shoot and root biomass were evaluated. The results allowed to conclude that the grasses had a better development in the absence of the herbicide and that these were not enough so that the soybean did not suffer from phytotoxicity, affirming the need for further studies to affirm the remedial potential of these plants.