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Registro Completo |
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
19/07/1995 |
Data da última atualização: |
03/01/2012 |
Autoria: |
GOMES, D. T.; SILVA, U. R. da. |
Título: |
Competicao de variedades e hibridos de sorgo forrageiro (Sorghum vulgare Pers). |
Ano de publicação: |
1975 |
Fonte/Imprenta: |
Salvador: Representacao no Estado da Bahia, 1975. |
Páginas: |
07p. |
Série: |
(EMBRAPA-Representacao no Estado da Bahia. Comunicado Tecnico, 08). |
Idioma: |
Português |
Palavras-Chave: |
Bahia; Competicao; Cultivar; EMBRAPA; Forrageiro; Representacao. |
Thesagro: |
Sorgo. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00626nam a2200217 a 4500 001 1356369 005 2012-01-03 008 1975 bl uuuu u0uu1 u #d 100 1 $aGOMES, D. T. 245 $aCompeticao de variedades e hibridos de sorgo forrageiro (Sorghum vulgare Pers). 260 $aSalvador: Representacao no Estado da Bahia$c1975 300 $a07p. 490 $a(EMBRAPA-Representacao no Estado da Bahia. Comunicado Tecnico, 08). 650 $aSorgo 653 $aBahia 653 $aCompeticao 653 $aCultivar 653 $aEMBRAPA 653 $aForrageiro 653 $aRepresentacao 700 1 $aSILVA, U. R. da
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Registro Completo
Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
14/01/2008 |
Data da última atualização: |
25/03/2014 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
PARAÍBA, L. C. |
Afiliação: |
Lourival Costa Paraíba, Embrapa Meio Ambiente. |
Título: |
Pesticide bioconcentration modeling for fruit trees. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Chemosphere, Oxford, v. 66, n. 8, p. 1468-1475, 2007. |
Idioma: |
Inglês |
Conteúdo: |
The model presented allows simulating the pesticide concentration evolution in fruit trees and estimating the pesticide bioconcentration factor in fruits. Pesticides are non-ionic organic compounds that are degraded in soils cropped with woody species, fruit trees and other perennials. The model allows estimating the pesticide uptake by plants through the water transpiration stream and also the time in which maximum pesticide concentration occur in the fruits. The equation proposed presents the relationships between bioconcentration factor (BCF) and the following variables: plant water transpiration volume (Q), pesticide transpiration stream concentration factor (TSCF), pesticide stem-water partition coefficient (KWood,W), stem dry biomass (M) and pesticide dissipation rate in the soil?plant system (kEGS). The modeling started and was developed from a previous model ?Fruit Tree Model? (FTM), reported by Trapp and collaborators in 2003, to which was added the hypothesis that the pesticide degradation in the soil follows a first order kinetic equation. The FTM model for pesticides (FTM-p) was applied to a hypothetic mango plant cropping (Mangifera indica) treated with paclobutrazol (growth regulator) added to the soil. The model fitness was evaluated through the sensitivity analysis of the pesticide BCF values in fruits with respect to the model entry data variability. |
Thesagro: |
Agrotóxico; Contaminação; Manga; Modelo Matemático; Regulador de Crescimento. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01877naa a2200181 a 4500 001 1015981 005 2014-03-25 008 2007 bl uuuu u00u1 u #d 100 1 $aPARAÍBA, L. C. 245 $aPesticide bioconcentration modeling for fruit trees. 260 $c2007 520 $aThe model presented allows simulating the pesticide concentration evolution in fruit trees and estimating the pesticide bioconcentration factor in fruits. Pesticides are non-ionic organic compounds that are degraded in soils cropped with woody species, fruit trees and other perennials. The model allows estimating the pesticide uptake by plants through the water transpiration stream and also the time in which maximum pesticide concentration occur in the fruits. The equation proposed presents the relationships between bioconcentration factor (BCF) and the following variables: plant water transpiration volume (Q), pesticide transpiration stream concentration factor (TSCF), pesticide stem-water partition coefficient (KWood,W), stem dry biomass (M) and pesticide dissipation rate in the soil?plant system (kEGS). The modeling started and was developed from a previous model ?Fruit Tree Model? (FTM), reported by Trapp and collaborators in 2003, to which was added the hypothesis that the pesticide degradation in the soil follows a first order kinetic equation. The FTM model for pesticides (FTM-p) was applied to a hypothetic mango plant cropping (Mangifera indica) treated with paclobutrazol (growth regulator) added to the soil. The model fitness was evaluated through the sensitivity analysis of the pesticide BCF values in fruits with respect to the model entry data variability. 650 $aAgrotóxico 650 $aContaminação 650 $aManga 650 $aModelo Matemático 650 $aRegulador de Crescimento 773 $tChemosphere, Oxford$gv. 66, n. 8, p. 1468-1475, 2007.
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