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| Registros recuperados : 47 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
26/08/2005 |
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Data da última atualização: |
28/09/2015 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
DUKE, S. O.; CERDEIRA, A. L. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA. |
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Título: |
Potential environmental impacts of herbicide-resistant crops. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
COLLECTION of biosafety reviews. Padriciano: International Centre for Genetic Engineering and Biotechnology, 2005. p.66-143. |
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Idioma: |
Inglês |
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Conteúdo: |
Transgenic bromoxynil-, glufosinate-, and glyphosate-resistant crops have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Bromoxynil-resistant crops have been removed from the market. Few new herbicide-resistant crops (HRCs) are likely to be introduced in the near future. Glyphosate-resistant cotton and soybean have become dominant in those countries where they can be grown. Previous and potential effects of glufosinate and glyphosate on contamination of soil, water, and air are minimal, compared to that caused by the herbicides that they replace when HRCs are adopted. No risks have been found with food or feed safety or nutritional value in products from currently available HRCs. Both glufosinate- and glyphosate-resistant crops promote the adoption of reduced- or no-tillage agriculture. In the U.S.A. and Argentina, the advent of glyphosate-resistant soybeans resulted in a significant shift to reduced- and no-tillage practices, strongly reducing environmental degradation by agriculture. Weed species in HRC fields have shifted to those that can more successfully withstand glyphosate or to those that avoid the time of its application. One weed species has evolved resistance in glyphosate-resistant crops. HRCs have greater potential to become problems as volunteer crops than do conventional crops. In canola, herbicide resistance transgenes have been found in fields of canola that are supposed to be non transgenic. Under some circumstances, tansgene flow (introgression) to plants that might become problems in natural ecosystems may be the largest risk of HRCs. The HRC transgene itself is highly unlikely to be a risk in wild populations, but when linked to transgenes that may impart fitness benefits outside of agriculture, natural ecosystems could be affected. The development and use of failsafe introgression barriers in crops with such linked genes is highly encouraged. MenosTransgenic bromoxynil-, glufosinate-, and glyphosate-resistant crops have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Bromoxynil-resistant crops have been removed from the market. Few new herbicide-resistant crops (HRCs) are likely to be introduced in the near future. Glyphosate-resistant cotton and soybean have become dominant in those countries where they can be grown. Previous and potential effects of glufosinate and glyphosate on contamination of soil, water, and air are minimal, compared to that caused by the herbicides that they replace when HRCs are adopted. No risks have been found with food or feed safety or nutritional value in products from currently available HRCs. Both glufosinate- and glyphosate-resistant crops promote the adoption of reduced- or no-tillage agriculture. In the U.S.A. and Argentina, the advent of glyphosate-resistant soybeans resulted in a significant shift to reduced- and no-tillage practices, strongly reducing environmental degradation by agriculture. Weed species in HRC fields have shifted to those that can more successfully withstand glyphosate or to those that avoid the time of its application. One weed species has evolved resistance in glyphosate-resistant crops. HRCs have greater potential to become problems as volunteer crops than do conventional crops. In canola, herbicide resistance transgenes have been found in fields of canola that are supposed to be non transgenic. Under so... Mostrar Tudo |
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Thesagro: |
Agricultura; Biossegurança; Biotecnologia; Engenharia Genética; Herbicida; Impacto Ambiental; Planta; Resistência a Produtos Químicos. |
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Categoria do assunto: |
--
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/130153/1/2005CL-005.pdf
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Marc: |
LEADER 02675naa a2200229 a 4500
001 1014276
005 2015-09-28
008 2005 bl uuuu u00u1 u #d
100 1 $aDUKE, S. O.
245 $aPotential environmental impacts of herbicide-resistant crops.$h[electronic resource]
260 $c2005
520 $aTransgenic bromoxynil-, glufosinate-, and glyphosate-resistant crops have been commercialized and grown extensively in the Western Hemisphere and, to a lesser extent, elsewhere. Bromoxynil-resistant crops have been removed from the market. Few new herbicide-resistant crops (HRCs) are likely to be introduced in the near future. Glyphosate-resistant cotton and soybean have become dominant in those countries where they can be grown. Previous and potential effects of glufosinate and glyphosate on contamination of soil, water, and air are minimal, compared to that caused by the herbicides that they replace when HRCs are adopted. No risks have been found with food or feed safety or nutritional value in products from currently available HRCs. Both glufosinate- and glyphosate-resistant crops promote the adoption of reduced- or no-tillage agriculture. In the U.S.A. and Argentina, the advent of glyphosate-resistant soybeans resulted in a significant shift to reduced- and no-tillage practices, strongly reducing environmental degradation by agriculture. Weed species in HRC fields have shifted to those that can more successfully withstand glyphosate or to those that avoid the time of its application. One weed species has evolved resistance in glyphosate-resistant crops. HRCs have greater potential to become problems as volunteer crops than do conventional crops. In canola, herbicide resistance transgenes have been found in fields of canola that are supposed to be non transgenic. Under some circumstances, tansgene flow (introgression) to plants that might become problems in natural ecosystems may be the largest risk of HRCs. The HRC transgene itself is highly unlikely to be a risk in wild populations, but when linked to transgenes that may impart fitness benefits outside of agriculture, natural ecosystems could be affected. The development and use of failsafe introgression barriers in crops with such linked genes is highly encouraged.
650 $aAgricultura
650 $aBiossegurança
650 $aBiotecnologia
650 $aEngenharia Genética
650 $aHerbicida
650 $aImpacto Ambiental
650 $aPlanta
650 $aResistência a Produtos Químicos
700 1 $aCERDEIRA, A. L.
773 $tCOLLECTION of biosafety reviews. Padriciano: International Centre for Genetic Engineering and Biotechnology, 2005. p.66-143.
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Embrapa Meio Ambiente (CNPMA) |
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