| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
13/03/2012 |
|
Data da última atualização: |
13/03/2012 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
SENA, A. P. A.; CHAIBUB, A. A.; CORTES, M. V. C. B.; PRABHU, A. S.; ARAÚJO, L. G.; FILIPPI, M. C. |
|
Afiliação: |
A. P. A. SENA, mestrada UFG; A. A. CHAIBUB, graduanda UFG; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; ANNE SITARAMA PRABHU, CNPAF; LEILA GARCÊS DE ARAÚJO, UFG; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
|
Título: |
Eficiência do Epicoccum sp., na supressão de Magnaporthe oryzae nas folhas de arroz em casa de vegetação. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 36, p. 366, ago. 2011. Suplemento, ref. 598. Edição dos Resumos do 44 Congresso Brasileiro de Fitopatologia, Bento Gonçalves, ago. 2011. |
|
Descrição Física: |
1 CD-ROM. |
|
Idioma: |
Português |
|
Conteúdo: |
O trabalho objetivou comparar a supressão da brusone nas folhas, através do antagonismo e da indução de resistência pelo agente biológico Epicoccum sp., componente do filoplano do arroz, que se mostrou eficaz em ensaios anteriores. |
|
Thesagro: |
Arroz; Brusone; Doença de planta; Oryza sativa. |
|
Thesaurus Nal: |
Magnaporthe oryzae. |
|
Categoria do assunto: |
H Saúde e Patologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55609/1/0598.pdf
|
|
Marc: |
LEADER 01068nam a2200241 a 4500
001 1918487
005 2012-03-13
008 2011 bl uuuu u00u1 u #d
100 1 $aSENA, A. P. A.
245 $aEficiência do Epicoccum sp., na supressão de Magnaporthe oryzae nas folhas de arroz em casa de vegetação.
260 $aTropical Plant Pathology, Brasília, DF, v. 36, p. 366, ago. 2011. Suplemento, ref. 598. Edição dos Resumos do 44 Congresso Brasileiro de Fitopatologia, Bento Gonçalves, ago. 2011.$c2011
300 $c1 CD-ROM.
520 $aO trabalho objetivou comparar a supressão da brusone nas folhas, através do antagonismo e da indução de resistência pelo agente biológico Epicoccum sp., componente do filoplano do arroz, que se mostrou eficaz em ensaios anteriores.
650 $aMagnaporthe oryzae
650 $aArroz
650 $aBrusone
650 $aDoença de planta
650 $aOryza sativa
700 1 $aCHAIBUB, A. A.
700 1 $aCORTES, M. V. C. B.
700 1 $aPRABHU, A. S.
700 1 $aARAÚJO, L. G.
700 1 $aFILIPPI, M. C.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Meio Ambiente. |
|
Data corrente: |
03/12/2012 |
|
Data da última atualização: |
21/07/2017 |
|
Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
|
Autoria: |
MORAIS, L. S. R. de. |
|
Afiliação: |
Universidade Estadual de Campinas. Instituto de Química Programa de Pós-Graduação em Ciências. |
|
Título: |
Desenvolvimento e validação de métodos para a determinação de agrotóxicos em água e solo das áreas de recarga de Aquífero Guarani, na região das nascentes do Rio Araguaia, MT/GO. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
2009. |
|
Páginas: |
132 p. |
|
Descrição Física: |
il. |
|
Idioma: |
Português |
|
Notas: |
Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica.
Orientação: Isabel C. S. F. Jardim - Co-Orientadora: Sonia Cláudia do Nascimento de Queiroz - Embrapa Meio Ambiente. |
|
Conteúdo: |
Abstract: The area near the Araguaia River, between Goiás and Mato Grosso States, is the location of a portion of the recharging of the Guarani Aquifer, which is one of the world¿s largest aquifer systems and an important source of drinking water. This reservoir could be threatened by the widespread use of pesticides in maize and soybean cultivation in this area. Thus, this work developed analytical methods for the determination of imazethapyr, nicosulfuron, imazaquin, carbofuran, atrazine, linuron, clorimuronethyl and diflubenzuron, pesticides used in maize and soybean cultivation. Pesticide separation, identification and quantification were performed using High-Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD) and Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry (LC-ESI-MS/MS). Solid Phase Extraction (SPE) with C18 sorbents was optimized for sample extraction from water. Soil samples were extracted by mechanical shaking, sonication or microwave-assisted extraction with industrial and home microwave ovens. Methods were validated resulting in limits of quantification (LOQ) for the pesticides in water in the range of 0.015-0.1 ng mL, using SPE-HPLC-DAD, and 0.01 ng mL using LC-ESI-MS/MS. LOQ of 1 ng mL for all pesticides in soil were achieved using the home microwave oven and LC-ESI-MS/MS. Recoveries for pesticides with all methods were in the range 70-120 %. Relative standard deviations for repeatability and intermediate precision were less than 15 %. SPEHPLC- DAD and LC-ESI-MS/MS were employed for the analysis of samples of water from the recharge area and most of the pesticides were detected at concentrations below the minimum residue limit (MRL) of 0.1 ng mL established by the European Community. The home microwave oven and LC-ESI-MS/MS were used for the analysis of soil samples from two other regions of Brazil and the pesticides were not detected in these samples. Adsorption and desorption parameters were determined for imazethapyr, imazaquin, nicosulfuron and chlorimuron-ethyl, indicating that these pesticides have little affinity for the soil of the region of the Guarani Aquifer recharge, and show significant leaching potential, according to the ground water ubiquity score (GUS index) for these pesticides. MenosAbstract: The area near the Araguaia River, between Goiás and Mato Grosso States, is the location of a portion of the recharging of the Guarani Aquifer, which is one of the world¿s largest aquifer systems and an important source of drinking water. This reservoir could be threatened by the widespread use of pesticides in maize and soybean cultivation in this area. Thus, this work developed analytical methods for the determination of imazethapyr, nicosulfuron, imazaquin, carbofuran, atrazine, linuron, clorimuronethyl and diflubenzuron, pesticides used in maize and soybean cultivation. Pesticide separation, identification and quantification were performed using High-Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD) and Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry (LC-ESI-MS/MS). Solid Phase Extraction (SPE) with C18 sorbents was optimized for sample extraction from water. Soil samples were extracted by mechanical shaking, sonication or microwave-assisted extraction with industrial and home microwave ovens. Methods were validated resulting in limits of quantification (LOQ) for the pesticides in water in the range of 0.015-0.1 ng mL, using SPE-HPLC-DAD, and 0.01 ng mL using LC-ESI-MS/MS. LOQ of 1 ng mL for all pesticides in soil were achieved using the home microwave oven and LC-ESI-MS/MS. Recoveries for pesticides with all methods were in the range 70-120 %. Relative standard deviations for repeatability and intermediate precision ... Mostrar Tudo |
|
Palavras-Chave: |
Method validation. |
|
Thesagro: |
Agrotóxico; Água; Solo. |
|
Thesaurus NAL: |
pesticides; soil; water. |
|
Categoria do assunto: |
W Química e Física |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/144357/1/2009OT-10.pdf
|
|
Marc: |
LEADER 03120nam a2200217 a 4500
001 1941040
005 2017-07-21
008 2009 bl uuuu m 00u1 u #d
100 1 $aMORAIS, L. S. R. de
245 $aDesenvolvimento e validação de métodos para a determinação de agrotóxicos em água e solo das áreas de recarga de Aquífero Guarani, na região das nascentes do Rio Araguaia, MT/GO.
260 $a2009.$c2009
300 $a132 p.$cil.
500 $aTese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica. Orientação: Isabel C. S. F. Jardim - Co-Orientadora: Sonia Cláudia do Nascimento de Queiroz - Embrapa Meio Ambiente.
520 $aAbstract: The area near the Araguaia River, between Goiás and Mato Grosso States, is the location of a portion of the recharging of the Guarani Aquifer, which is one of the world¿s largest aquifer systems and an important source of drinking water. This reservoir could be threatened by the widespread use of pesticides in maize and soybean cultivation in this area. Thus, this work developed analytical methods for the determination of imazethapyr, nicosulfuron, imazaquin, carbofuran, atrazine, linuron, clorimuronethyl and diflubenzuron, pesticides used in maize and soybean cultivation. Pesticide separation, identification and quantification were performed using High-Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD) and Liquid Chromatography-Electrospray Ionization Tandem Mass Spectrometry (LC-ESI-MS/MS). Solid Phase Extraction (SPE) with C18 sorbents was optimized for sample extraction from water. Soil samples were extracted by mechanical shaking, sonication or microwave-assisted extraction with industrial and home microwave ovens. Methods were validated resulting in limits of quantification (LOQ) for the pesticides in water in the range of 0.015-0.1 ng mL, using SPE-HPLC-DAD, and 0.01 ng mL using LC-ESI-MS/MS. LOQ of 1 ng mL for all pesticides in soil were achieved using the home microwave oven and LC-ESI-MS/MS. Recoveries for pesticides with all methods were in the range 70-120 %. Relative standard deviations for repeatability and intermediate precision were less than 15 %. SPEHPLC- DAD and LC-ESI-MS/MS were employed for the analysis of samples of water from the recharge area and most of the pesticides were detected at concentrations below the minimum residue limit (MRL) of 0.1 ng mL established by the European Community. The home microwave oven and LC-ESI-MS/MS were used for the analysis of soil samples from two other regions of Brazil and the pesticides were not detected in these samples. Adsorption and desorption parameters were determined for imazethapyr, imazaquin, nicosulfuron and chlorimuron-ethyl, indicating that these pesticides have little affinity for the soil of the region of the Guarani Aquifer recharge, and show significant leaching potential, according to the ground water ubiquity score (GUS index) for these pesticides.
650 $apesticides
650 $asoil
650 $awater
650 $aAgrotóxico
650 $aÁgua
650 $aSolo
653 $aMethod validation
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Meio Ambiente (CNPMA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
