Avaliação do potencial fitorremediador de crisântemo em solo com excesso de cobre

Abstract

Minimizing the harmful effects of copper (Cu) in the soil, using plants are slow and gradual, requiring the identification of species with fitorremediativa fitness for this process. Thus, the present work had as objective to evaluate the cultivation of chrysanthemum cv. Dark Fiji in soil added with Cu as promising phytoremediation. The experiment was conducted in the period from July to December 2014, in the greenhouse of the Floriculture UFSM. In a completely randomized experimental design, with five treatments composed of doses of Cu added to the soil, in the amounts of 250, 500, 750 and 1,000 mg kg-1 and control (without addition), with five replications. In two crop cycles both with duration of 104 days from the production of seedlings to harvest. Chrysanthemum cuttings were obtained from cuttings collected in the garden clonal itself, with 8 cm long, rooted in commercial substrate and transplanted into containers containing soil. They evaluated phytotechnical parameters and translocation factors of aerial part of bioaccumulation and bioconcentration factor of Cu in plant roots and metal extraction rate. It was observed that at all doses of Cu added to the soil, the plants showed low plant development and floriferous affecting its aesthetic quality in both crop cycles. The high accumulation of Cu in the roots is indicative of growing tolerance, cv. Dark Fiji in areas with excess of this, with phytoremediation potential.

Avaliação Do Potencial Fitorremediador De Cravina-Chinesa Cultivada Em Solo Com Excesso De Cobre

“…em solo com excesso de Cu não observaram danos fitotóxicos nas plantas estudadas. Em contrapartida, Menegaes et al (2017a;2017b) verificaram que as espécies de Zantedeschia spp. e Dendranthema grandiflora Tzevelev cv.…”

“…Zancheta et al (2011) relatam que a alta retenção de Cu nas raízes é um indicativo de tolerância da planta ao cultivo em solos com excesso deste elemento. Menegaes et al (2017a) verificaram em estudos com a espécie de Zantedeschia spp., cultivada em solo com alto teor de Cu, o acúmulo deste elemento nos tubérculos com baixa translocação para a parte aérea, afetando negativamente o seu desenvolvimento e floração.…”

Phytoremediation technique on the rehabilitation of contaminated areas and the application of Zantedeschia aethiopica (L.) in this process: a narrative review

“…In addition, it showed a high tendency for the phytostabilization of Ni and As and the phytoextraction of the metals Ba, Cd, Cu, Ni, Se and Zn, present in the commercial substrate. Subjecting chrysanthemums (D. grandiflora) to Cu contaminated soil, Menegaes et al (2017) observed that this species showed tolerance to high rates of this metal and stands out for its ability to retain this element in its roots. However, the authors point out that the aesthetic quality was affected, which jeopardizes its commercial value.…”

Copper Resistance of Lawn Grass and Chrysanthemum Carinatum Plants

“…Cu-stress caused a small decrease in the efficiency of photosystem 2 photochemistry, but its primary effect was on growth [16]. Copper ions reduce the quality of ornamental plants [17]. The aim of this study was to assess phytotoxicity of copper for Chrysanthemum carinatum and lawn grass.…”