Data/hora: 01/06/2024 02:36:09

Biblioteca(s): 	Embrapa Meio Ambiente; Embrapa Soja.	
Data corrente: 	14/01/2008	
Data da última atualização: 	28/09/2015	
Autoria: 	CERDEIRA, A. L.; GAZZIERO, D. L. P.; DUKE, S. O.; MATALLO, M. B.; SPADOTTO, C. A.	
Afiliação: 	ANTONIO LUIZ CERDEIRA, CNPMA; Dionísio Luiz Pisa Gazziero, Embrapa Soja; Stephen O. Duke, Natural Products Utilization Research Unit-US Department of Agriculture; Marcus Barifouse Matallo, Instituto Biológico; CLAUDIO APARECIDO SPADOTTO, SGTE.	
Título: 	Review of potential environmental impacts of transgenic glyphosate-resistant soybean in Brazil.	
Ano de publicação: 	2007	
Fonte/Imprenta: 	Journal of Environmental Science and Health. Part B. Pesticides, Food Contaminants and Agricultural Wastes, New Yrok, v. 42, n. 5, p. 539-549, 2007.	
Idioma: 	Inglês	
Conteúdo: 	Transgenic glyphosate-resistant soybeans (GRS) have been commercialized and grown extensively in the Western Hemisphere, including Brazil. Worldwide, several studies have shown that previous and potential effects of glyphosate on contamination of soil, water, and air are minimal, compared to those caused by the herbicides that they replace when GRS are adopted. In the USA and Argentina, the advent of glyphosate-resistant soybeans resulted in a significant shift to reduced- and no-tillage practices, thereby significantly reducing environmental degradation by agriculture. Similar shifts in tillage practiced with GRS might be expected in Brazil. Transgenes encoding glyphosate resistance in soybeans are highly unlikely to be a risk to wild plant species in Brazil. Soybean is almost completely self-pollinated and is a non-native species in Brazil, without wild relatives, making introgression of transgenes from GRS virtually impossible. Probably the highest agricultural risk in adopting GRS in Brazil is related to weed resistance. Weed species in GRS fields have shifted in Brazil to those that can more successfully withstand glyphosate or to those that avoid the time of its application. These include Chamaesyce hirta (erva-de-Santa-Luzia), Commelina benghalensis (trapoeraba), Spermacoce latifolia (erva-quente), Richardia brasiliensis (poaia-branca), and Ipomoea spp. (corda-de-viola). Four weed species, Conyza bonariensis, Conyza Canadensis (buva), Lolium multiflorum (azevem), and Euphorbia heterophylla (amendoim bravo), have evolved resistance to glyphosate in GRS in Brazil and have great potential to become problems.	
Thesagro: 	Herbicida; Impacto Ambiental; Planta transgênica; Soja.	
Thesaurus Nal: 	Herbicides; Soybeans; Transgenic plants.	
Categoria do assunto: 	--
F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (7160-1) - UPC - AP - -- - Aq5 G2 - PAT 2007 - 2008.00014 - DIS
CNPSO - (32471-1) - UPC - AP - PP - 12079 -  - 12079 - DIS