2011
DOI: 10.1590/s0006-87052011000400002
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Fitoextração de cobre por espécies de plantas cultivadas em solução nutritiva

Abstract: ResumoDentre as tecnologias para remediação de solos contaminados, destaca-se a fitoextração. Uma etapa importante nesta estratégia é a seleção de plantas adequadas para áreas que necessitam de recuperação. O objetivo deste trabalho foi avaliar o potencial fitoextrator de cobre (Cu) por plantas de sorgo (Sorghum bicolor), milheto (Pennisetum glaucum), crotalária (Crotalaria juncea) e feijão-de-porco (Canavalia ensiformis). O delineamento experimental foi em blocos ao acaso e os tratamentos foram constituídos d… Show more

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Cited by 13 publications
(9 citation statements)
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References 34 publications
(19 reference statements)
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“…This should be regarded as an average value for the soil of a former vineyard that underwent mechanical operations by plow or cutter for 20 years. The Cu concentration in T20 is still well-detectable probably because of a poor elimination capacity of the soil endowed with a scarce percolation and precipitation washout, and for the low Cu phytoextraction by spontaneous herbaceous plants or cultivated species (forage and cereals) [27]. Sample 4, constituted by branches obtained in late winter from the annual pruning (Figure 2E), did not show any significant levels of Cu, suggesting that the grapevine plants are able to absorb only limited copper quantities, and detected amounts are the result of the metal deposition on the vine bark after the phytosanitary treatments.…”
Section: Soil Analysismentioning
confidence: 99%
“…This should be regarded as an average value for the soil of a former vineyard that underwent mechanical operations by plow or cutter for 20 years. The Cu concentration in T20 is still well-detectable probably because of a poor elimination capacity of the soil endowed with a scarce percolation and precipitation washout, and for the low Cu phytoextraction by spontaneous herbaceous plants or cultivated species (forage and cereals) [27]. Sample 4, constituted by branches obtained in late winter from the annual pruning (Figure 2E), did not show any significant levels of Cu, suggesting that the grapevine plants are able to absorb only limited copper quantities, and detected amounts are the result of the metal deposition on the vine bark after the phytosanitary treatments.…”
Section: Soil Analysismentioning
confidence: 99%
“…A high tolerance of the species Elsholtzia haichowensis Sun was observed in soils with Copper in excess and its presence in plant tissues was also verified (Xia and Chen, 2007). The Canavalia ensiformis also showed high levels of copper in their root system and aerial part (Zancheta et al, 2011).…”
Section: Phytoremediationmentioning
confidence: 99%
“…Não são todas as espécies vegetais que se desenvolvem em ambientes contaminados, necessitando, assim, identificar espécies tolerantes as características edafoclimáticas locais e ao contaminante (MARQUES et al, 2011;ZANCHETA et al, 2011).…”
Section: Introductionunclassified