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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/05/2007 |
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Data da última atualização: |
24/11/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CERDEIRA, A. L.; DUKE, S. O. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; STEPHEN O. DUKE, USDA/ARS. |
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Título: |
The current status and environmental impacts of glyphosate-resistant crops: a review. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Journal of Environmental Quality, Madison, v. 35, n. 5, p. 1633-1658, ago. 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Glyphosate [N-(phosphonomethyl) glycine]-resistant crops (GRCs), canola (Brassica napus L.), cotton (Gossypium hirsutum L.), maize (Zea mays L.), and soybean [Glycine max (L.) Merr.] have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Glyphosate-resistant cotton and soybean have become dominant in those countries where their planting is permitted. Effects of glyphosate on contamination of soil, water, and air are minimal, compared to some of the herbicides that they replace. No risks have been found with food or feed safety or nutritional value in products from currently available GRCs. Glyphosate-resistant crops have promoted the adoption of reduced- or no-tillage agriculture in the USA and Argentina, providing a substantial environmental benefit. Weed species in GRC fields have shifted to those that can more successfully withstand glyphosate and to those that avoid the time of its application. Three weed species have evolved resistance to glyphosate in GRCs. Glyphosate-resistant crops have greater potential to become problems as volunteer crops than do conventional crops. Glyphosate resistance transgenes have been found in fields of canola that are supposed to be non-transgenic. Under some circumstances, the largest risk of GRCs may be transgene flow (introgression) from GRCs to related species that might become problems in natural ecosystems. Glyphosate resistance transgenes themselves are highly unlikely to be a risk in wild plant populations, but when linked to transgenes that may impart fitness benefits outside of agriculture (e.g., insect resistance), natural ecosystems could be affected. The development and use of failsafe introgression barriers in crops with such linked genes is needed. MenosGlyphosate [N-(phosphonomethyl) glycine]-resistant crops (GRCs), canola (Brassica napus L.), cotton (Gossypium hirsutum L.), maize (Zea mays L.), and soybean [Glycine max (L.) Merr.] have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Glyphosate-resistant cotton and soybean have become dominant in those countries where their planting is permitted. Effects of glyphosate on contamination of soil, water, and air are minimal, compared to some of the herbicides that they replace. No risks have been found with food or feed safety or nutritional value in products from currently available GRCs. Glyphosate-resistant crops have promoted the adoption of reduced- or no-tillage agriculture in the USA and Argentina, providing a substantial environmental benefit. Weed species in GRC fields have shifted to those that can more successfully withstand glyphosate and to those that avoid the time of its application. Three weed species have evolved resistance to glyphosate in GRCs. Glyphosate-resistant crops have greater potential to become problems as volunteer crops than do conventional crops. Glyphosate resistance transgenes have been found in fields of canola that are supposed to be non-transgenic. Under some circumstances, the largest risk of GRCs may be transgene flow (introgression) from GRCs to related species that might become problems in natural ecosystems. Glyphosate resistance transgenes themselves are highly unlikely to be a ri... Mostrar Tudo |
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Palavras-Chave: |
Avaliação de risco; Glifosato. |
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Thesagro: |
Água; Algodão; Alimento; Ar; Contaminação; Impacto ambiental; Milho; Resistência; Soja; Solo. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02535naa a2200277 a 4500
001 1015362
005 2015-11-24
008 2006 bl uuuu u00u1 u #d
100 1 $aCERDEIRA, A. L.
245 $aThe current status and environmental impacts of glyphosate-resistant crops$ba review.$h[electronic resource]
260 $c2006
520 $aGlyphosate [N-(phosphonomethyl) glycine]-resistant crops (GRCs), canola (Brassica napus L.), cotton (Gossypium hirsutum L.), maize (Zea mays L.), and soybean [Glycine max (L.) Merr.] have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Glyphosate-resistant cotton and soybean have become dominant in those countries where their planting is permitted. Effects of glyphosate on contamination of soil, water, and air are minimal, compared to some of the herbicides that they replace. No risks have been found with food or feed safety or nutritional value in products from currently available GRCs. Glyphosate-resistant crops have promoted the adoption of reduced- or no-tillage agriculture in the USA and Argentina, providing a substantial environmental benefit. Weed species in GRC fields have shifted to those that can more successfully withstand glyphosate and to those that avoid the time of its application. Three weed species have evolved resistance to glyphosate in GRCs. Glyphosate-resistant crops have greater potential to become problems as volunteer crops than do conventional crops. Glyphosate resistance transgenes have been found in fields of canola that are supposed to be non-transgenic. Under some circumstances, the largest risk of GRCs may be transgene flow (introgression) from GRCs to related species that might become problems in natural ecosystems. Glyphosate resistance transgenes themselves are highly unlikely to be a risk in wild plant populations, but when linked to transgenes that may impart fitness benefits outside of agriculture (e.g., insect resistance), natural ecosystems could be affected. The development and use of failsafe introgression barriers in crops with such linked genes is needed.
650 $aÁgua
650 $aAlgodão
650 $aAlimento
650 $aAr
650 $aContaminação
650 $aImpacto ambiental
650 $aMilho
650 $aResistência
650 $aSoja
650 $aSolo
653 $aAvaliação de risco
653 $aGlifosato
700 1 $aDUKE, S. O.
773 $tJournal of Environmental Quality, Madison$gv. 35, n. 5, p. 1633-1658, ago. 2006.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
17/11/2021 |
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Data da última atualização: |
17/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
FREITAS, F. C. de; DANTAS, D.; AZEVEDO, C. P. de; SOUZA, C. R. de; CALEGARIO, N. |
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Afiliação: |
FILIPE CAMPOS DE FREITAS, UFV; DANIEL DANTAS, UFV; CELSO PAULO DE AZEVEDO, CPAA; CINTIA RODRIGUES DE SOUZA, CPAA; NATALINO CALEGARIO, UFV. |
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Título: |
Modelagem volumétrica da necromassa lenhosa em floresta manejada e não manejada na Amazônia Central. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Ciência Florestal, v. 31, n. 4, p. 1812-1832, out./dez. 2021. |
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DOI: |
https://doi.org/10.5902/1980509848108 |
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Idioma: |
Português |
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Notas: |
Título em inglês: Modeling coarse woody debris volume in logged and unlogged forests in Central Amazon. |
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Conteúdo: |
A necromassa lenhosa representa cerca de 20% do carbono disponível na biomassa acima do solo em florestas amazônicas, entretanto a sua quantificação não é uma atividade comum em estudos florestais. O objetivo deste trabalho foi realizar a modelagem volumétrica da necromassa, a fim de proporcionar uma ferramenta para quantificação desse componente da vegetação. |
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Palavras-Chave: |
Madeira morta; Resíduo lenhoso. |
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Thesagro: |
Carbono. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227843/1/48108-304841-1-PB.pdf
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Marc: |
LEADER 01180naa a2200229 a 4500
001 2136234
005 2021-11-17
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5902/1980509848108$2DOI
100 1 $aFREITAS, F. C. de
245 $aModelagem volumétrica da necromassa lenhosa em floresta manejada e não manejada na Amazônia Central.$h[electronic resource]
260 $c2021
500 $aTítulo em inglês: Modeling coarse woody debris volume in logged and unlogged forests in Central Amazon.
520 $aA necromassa lenhosa representa cerca de 20% do carbono disponível na biomassa acima do solo em florestas amazônicas, entretanto a sua quantificação não é uma atividade comum em estudos florestais. O objetivo deste trabalho foi realizar a modelagem volumétrica da necromassa, a fim de proporcionar uma ferramenta para quantificação desse componente da vegetação.
650 $aCarbono
653 $aMadeira morta
653 $aResíduo lenhoso
700 1 $aDANTAS, D.
700 1 $aAZEVEDO, C. P. de
700 1 $aSOUZA, C. R. de
700 1 $aCALEGARIO, N.
773 $tCiência Florestal$gv. 31, n. 4, p. 1812-1832, out./dez. 2021.
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Embrapa Amazônia Ocidental (CPAA) |
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