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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
06/08/2020 |
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Data da última atualização: |
07/05/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ESTEVES, G. de F.; BRESSANIN, L. A.; SOUZA, K. R. D. de; SILVA, A. B. da; MANTOVANI, J. R.; MARQUES, D. M.; MAGALHAES, P. C.; PASQUAL, M.; SOUZA, T. C. de. |
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Afiliação: |
Gisele de Fátima Esteves, Universidade Federal de Alfenas; Leticia Aparecida Bressanin, Universidade Federal de Alfenas; Kamila Rezende Dázio de Souza, Universidade Federal de Alfenas; Adriano Bortolotti da Silva, UNIFENAS; José Ricardo Mantovani, UNIFENAS; Daniele Maria Marques, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; Moacir Pasqual, Universidade Federal de Lavras; Thiago Corrêa de Souza, Universidade de Alfenas. |
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Título: |
Do tailings from the Mariana, MG (Brazil), disaster affect the initial development of millet, maize, and sorghum? |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 27, p. 38662-38673, 2020. |
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DOI: |
10.1007/s11356-020-10013-w |
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Idioma: |
Inglês |
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Conteúdo: |
The collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given that their growth, biomass accumulation, and root dynamics were altered. Proportions of tailings in the substrate did not influence the absorption of iron or manganese by the studied plants. At the V3 stage, maize was the most tolerant, with a more robust root system, and showed fewer morphological changes and greater water use efficiency than the other studied species MenosThe collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given th... Mostrar Tudo |
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Palavras-Chave: |
Rejeito. |
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Thesagro: |
Dejeto; Lodo Residual. |
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Categoria do assunto: |
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Marc: |
LEADER 02690naa a2200265 a 4500
001 2124211
005 2021-05-07
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1007/s11356-020-10013-w$2DOI
100 1 $aESTEVES, G. de F.
245 $aDo tailings from the Mariana, MG (Brazil), disaster affect the initial development of millet, maize, and sorghum?$h[electronic resource]
260 $c2020
520 $aThe collapse of the Fundão dam in Mariana, MG, in 2015 resulted in the overflow of more than 50 million m3 of mud containing mine tailings, leaving a path of destruction and immeasurable social and environmental consequences. Tailings? chemical and physical assessments revealed the presence of some elements at levels higher than those allowed by Brazilian guidelines. The tailings also showed high density, which restricts vegetation recovery. Therefore, this study aimed to analyze the effects of mud containing mine tailings from the Fundão dam on the germination and initial growth and development of three plant species: millet, maize, and sorghum. These species were cultivated on substrates with five tailings proportions: 0 T (100% sand), 25 T (25% tailings + 75% sand); 50 T (50% tailings + 50% sand); 75 T (75% tailings + 25% sand); and 100 T (100% tailings). In experiment I, the germination and initial growth of seedlings (plants with 1 or none fully expanded leaf) in these substrates were evaluated. In experiment II, growth parameters, photosynthetic efficiency (gas exchange and chlorophyll a fluorescence), metal accumulation, and plant root morphology of the same species were evaluated at the three fully expanded leaves vegetative stage (V3). Overall, the germination of seedlings and the initial growth of the three species analyzed were not affected by the presence of tailings. However, in plants at the V3 stage, morphophysiology variations differed among species, given that their growth, biomass accumulation, and root dynamics were altered. Proportions of tailings in the substrate did not influence the absorption of iron or manganese by the studied plants. At the V3 stage, maize was the most tolerant, with a more robust root system, and showed fewer morphological changes and greater water use efficiency than the other studied species
650 $aDejeto
650 $aLodo Residual
653 $aRejeito
700 1 $aBRESSANIN, L. A.
700 1 $aSOUZA, K. R. D. de
700 1 $aSILVA, A. B. da
700 1 $aMANTOVANI, J. R.
700 1 $aMARQUES, D. M.
700 1 $aMAGALHAES, P. C.
700 1 $aPASQUAL, M.
700 1 $aSOUZA, T. C. de
773 $tEnvironmental Science and Pollution Research$gv. 27, p. 38662-38673, 2020.
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Embrapa Milho e Sorgo (CNPMS) |
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| 8. |  | DESTRO, D.; BIZETI, H. S.; MAREGA FILHO, M.; MORAIS, L. K. de; TRÓIA, C.; MONTALVÁN, R. Genetic variability for traits related to cooking time in soybean. Crop Breeding and Applied Biotechnology, Londrina, v. 3, n. 4, p. 275-280, dec. 2003.| Biblioteca(s): Embrapa Soja. |
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| 9. | | AGUIAR, A. V. de; VENCOVSKY, R.; CHAVES, L. J.; MOURA, M. F.; MORAIS, L. K. de. Genetics and expected selection gain for growth traits in Eugenia dysenterica DC populations. Bragantia, Campinas, v. 68, n. 3, p. 629-637, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 16. | | CAMARA, T. M. M.; AMARAL, A. L. do; MORAIS, L. K. de. Diversidade entre acessos do complexo Saccharum estimada por meio de caracteres agronômicos. Revista RG News, Brasília, DF, v. 3, n. 2, 2017. p. 120. Edição Especial dos Anais do 3° Simpósio da Rede de Recursos Genéticos Vegetais do Nordeste, Aracaju, out. 2017.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 17. | | AMARAL, A. L. do; CAMARA, T. M. M.; MORAIS, L. K. de. Documentação do banco de germoplasma do complexo Saccharum. Revista RG News, Brasília, DF, v. 3, n. 2, 2017. p.131. Edição Especial dos Anais do 3° Simpósio da Rede de Recursos Genéticos Vegetais do Nordeste, Aracaju, out. 2017.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| Registros recuperados : 52 | |
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