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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
14/04/1998 |
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Data da última atualização: |
16/05/2017 |
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Autoria: |
PARAIBA, L. C.; JONSSON, C. M.; NEVES, M. C. |
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Afiliação: |
LOURIVAL COSTA PARAIBA, CNPMA; CLAUDIO MARTIN JONSSON, CNPMA; MARCOS CORREA NEVES, CNPMA. |
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Título: |
Um programa em Pascal para avaliar a cinética de agrotóxicos em organismos aquáticos. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Pesticidas - Revista Técnico Científica, Curitiba, v.4, n.4, p.27-38, 1994. |
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Idioma: |
Português |
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Conteúdo: |
O ambiente aquático e, frequentemente, alvo de agressões por compostos químicos de diversas origens que contaminam os organismos que ali habitam. Através de estudos de bioconcentração de agrotóxicos na biota aquática, é possível se prever o impacto ambiental destes produtos. O presente trabalho tem por finalidade apresentar um programa computacional na linguagem PASCAL, que facilita o cálculo de alguns parâmetros toxicocinéticos, a usuários que trabalham com bioconcentração aquática com um modelo determinístico de um compartimento. Os parâmetros toxicocineticos calculados pelo programa proposto auxiliam a estabelecer limites máximos de descarga de poluentes na água e oferecem subsídios para o delineamento de estudos de biomagnifição. |
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Thesagro: |
Agrotóxico. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159913/1/1994PL016-Paraiba-Um-programa-3418.pdf
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Marc: |
LEADER 01268naa a2200157 a 4500
001 1012827
005 2017-05-16
008 1994 bl uuuu u00u1 u #d
100 1 $aPARAIBA, L. C.
245 $aUm programa em Pascal para avaliar a cinética de agrotóxicos em organismos aquáticos.$h[electronic resource]
260 $c1994
520 $aO ambiente aquático e, frequentemente, alvo de agressões por compostos químicos de diversas origens que contaminam os organismos que ali habitam. Através de estudos de bioconcentração de agrotóxicos na biota aquática, é possível se prever o impacto ambiental destes produtos. O presente trabalho tem por finalidade apresentar um programa computacional na linguagem PASCAL, que facilita o cálculo de alguns parâmetros toxicocinéticos, a usuários que trabalham com bioconcentração aquática com um modelo determinístico de um compartimento. Os parâmetros toxicocineticos calculados pelo programa proposto auxiliam a estabelecer limites máximos de descarga de poluentes na água e oferecem subsídios para o delineamento de estudos de biomagnifição.
650 $aAgrotóxico
700 1 $aJONSSON, C. M.
700 1 $aNEVES, M. C.
773 $tPesticidas - Revista Técnico Científica, Curitiba$gv.4, n.4, p.27-38, 1994.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/04/2014 |
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Data da última atualização: |
28/04/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
NAKATANI, A. S.; FERNANDES, M. F.; SOUZA, R. A. de; SILVA, A. P. da; REIS-JUNIOR, F. B. dos; MENDES, I. C.; HUNGRIA, M. |
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Afiliação: |
ANDRÉ SHIGUEYOSHI NAKATANI, Fundação Araucária - Pós-doctor; MARCELO FERREIRA FERNANDES, CPATC; ROSINEI APARECIDA DE SOUZA, IAPAR; ADRIANA PEREIRA DA SILVA, Fundação Araucária - Pós-doctor; FABIO BUENO DOS REIS JUNIOR, CPAC; IEDA DE CARVALHO MENDES, CPAC; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Effects of the glyphosate-resistance gene and of herbicides applied to the soybean crop on soil microbial biomass and enzymes. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Field Crops Research, v. 162, p. 20-29, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Glyphosate, a broad-spectrum herbicide used for the non-selective control of weeds, inhibits 5-enolpyruvylshikimate-3-phosphate synthase, a key enzyme in the synthesis of aromatic amino acidsin the shikimic acid pathway in plants, fungi and bacteria, thus impairing the synthesis of proteinsrequired for various life processes. Soybean genetically engineered to be glyphosate resistant (GR orRoundup Ready, RR) represents the most cultivated transgenic crop globally, including Brazil. There areconcerns about the effects of RR transgenic soybean and of glyphosate on soil microbial communitiesand their functioning. Our study was designed to detect changes in soil microbial biomass-carbon (MB-C) and -nitrogen (MB-N) and in enzyme activities [beta-glucosidase (GLU) and acid phosphatase (PHO)]in a large set of field trials performed at six sites in Brazil for two cropping seasons. We evaluated theeffects of the RR transgene, glyphosate and weed management (RR soybean + glyphosate vs. conventionalsoybean + conventional herbicides), with three pairs of nearly isogenic soybean cultivars evaluated persite. Soils were sampled from the 0?10 cm layer, between cropped lines, during the cropping seasons2004/2005 and 2005/2006, at the R2 stage of soybean growth. Univariate and contrast analyses wereperformed in addition to multivariate analyses including all four microbial variables, and denominatedas soil microbial variables (SMV). In general, microbial parameters and SMV were not affected by thetransgene, type of herbicide or weed management. Differences were, rather, related to site, croppingseason and cultivar. MenosGlyphosate, a broad-spectrum herbicide used for the non-selective control of weeds, inhibits 5-enolpyruvylshikimate-3-phosphate synthase, a key enzyme in the synthesis of aromatic amino acidsin the shikimic acid pathway in plants, fungi and bacteria, thus impairing the synthesis of proteinsrequired for various life processes. Soybean genetically engineered to be glyphosate resistant (GR orRoundup Ready, RR) represents the most cultivated transgenic crop globally, including Brazil. There areconcerns about the effects of RR transgenic soybean and of glyphosate on soil microbial communitiesand their functioning. Our study was designed to detect changes in soil microbial biomass-carbon (MB-C) and -nitrogen (MB-N) and in enzyme activities [beta-glucosidase (GLU) and acid phosphatase (PHO)]in a large set of field trials performed at six sites in Brazil for two cropping seasons. We evaluated theeffects of the RR transgene, glyphosate and weed management (RR soybean + glyphosate vs. conventionalsoybean + conventional herbicides), with three pairs of nearly isogenic soybean cultivars evaluated persite. Soils were sampled from the 0?10 cm layer, between cropped lines, during the cropping seasons2004/2005 and 2005/2006, at the R2 stage of soybean growth. Univariate and contrast analyses wereperformed in addition to multivariate analyses including all four microbial variables, and denominatedas soil microbial variables (SMV). In general, microbial parameters and SMV were not affected by... Mostrar Tudo |
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Palavras-Chave: |
Qualidade da soja; Soja transgêncica. |
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Thesagro: |
Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02304naa a2200229 a 4500
001 1985229
005 2014-04-28
008 2014 bl --- 0-- u #d
100 1 $aNAKATANI, A. S.
245 $aEffects of the glyphosate-resistance gene and of herbicides applied to the soybean crop on soil microbial biomass and enzymes.
260 $c2014
520 $aGlyphosate, a broad-spectrum herbicide used for the non-selective control of weeds, inhibits 5-enolpyruvylshikimate-3-phosphate synthase, a key enzyme in the synthesis of aromatic amino acidsin the shikimic acid pathway in plants, fungi and bacteria, thus impairing the synthesis of proteinsrequired for various life processes. Soybean genetically engineered to be glyphosate resistant (GR orRoundup Ready, RR) represents the most cultivated transgenic crop globally, including Brazil. There areconcerns about the effects of RR transgenic soybean and of glyphosate on soil microbial communitiesand their functioning. Our study was designed to detect changes in soil microbial biomass-carbon (MB-C) and -nitrogen (MB-N) and in enzyme activities [beta-glucosidase (GLU) and acid phosphatase (PHO)]in a large set of field trials performed at six sites in Brazil for two cropping seasons. We evaluated theeffects of the RR transgene, glyphosate and weed management (RR soybean + glyphosate vs. conventionalsoybean + conventional herbicides), with three pairs of nearly isogenic soybean cultivars evaluated persite. Soils were sampled from the 0?10 cm layer, between cropped lines, during the cropping seasons2004/2005 and 2005/2006, at the R2 stage of soybean growth. Univariate and contrast analyses wereperformed in addition to multivariate analyses including all four microbial variables, and denominatedas soil microbial variables (SMV). In general, microbial parameters and SMV were not affected by thetransgene, type of herbicide or weed management. Differences were, rather, related to site, croppingseason and cultivar.
650 $aSoja
653 $aQualidade da soja
653 $aSoja transgêncica
700 1 $aFERNANDES, M. F.
700 1 $aSOUZA, R. A. de
700 1 $aSILVA, A. P. da
700 1 $aREIS-JUNIOR, F. B. dos
700 1 $aMENDES, I. C.
700 1 $aHUNGRIA, M.
773 $tField Crops Research$gv. 162, p. 20-29, 2014.
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