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Registro Completo |
Biblioteca(s): |
Embrapa Alimentos e Territórios; Embrapa Meio Ambiente. |
Data corrente: |
31/08/2022 |
Data da última atualização: |
31/08/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PARAIBA, L. C.; FERREIRA, J. M. S.; FERRACINI, V. L.; RAMOS, S. R. R.; CERDEIRA, A. L.; ASSALIN, M. R.; PAZIANOTTO, R. A. A.; SANTOS, A. J. dos; PARAÍBA, C. C. M. |
Afiliação: |
LOURIVAL COSTA PARAIBA, CNPMA; JOANA MARIA SANTOS FERREIRA, CPATC; VERA LUCIA FERRACINI, CNPMA; SEMIRAMIS RABELO RAMALHO RAMOS, CNAT; ANTONIO LUIZ CERDEIRA, CNPMA; MARCIA REGINA ASSALIN, CNPMA; RICARDO ANTONIO ALMEIDA PAZIANOTTO, CNPMA; AGNALDO JOSÉ DOS SANTOS, UNIVERSIDADE FEDERAL DE ALAGOAS; CAROLINA COSTA MOTA PARAÍBA, UNIVERSIDADE FEDERAL DA BAHIA. |
Título: |
Modeling pesticide translocation injected by endotherapy into the stem of coconut tree (Cocos nucifera L.). |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Spanish Journal of Agricultural Research, v. 20, n. 2, e1002, 2022. |
ISSN: |
2171-9292 |
DOI: |
https://doi.org/10.5424/sjar/2022202-18326 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Aim of study: To present a mathematical model to simulate the translocation of pesticides injected into coconut trees. Pesticide residues in water and coconut pulp were also evaluated.Area of study: The data were obtained in coconut plants of the Itaporanga Experimental Field, located in the Municipality of Itaporanga d'Ajuda, Sergipe State, Brazil.Material and methods: To estimate the effect of pesticide site-sap coefficients and retardation factors on translocation and its phytosanitary behavior and risk of contamination of coconut fruits, the stipe was modeled by a classic dispersion-advection equation. The pesticides cyproconazole, azoxystrobin, dimethoate, imidacloprid, metalaxyl, and thiamethoxam were injected into the coconut palm stipe. The method used to extract pesticide residues from pulp, water and coconut sap samples was based on the QuEChERS methodology with modifications.Main results: Simulations showed that (i) the pesticides dimethoate, metalaxyl, and thiamethoxan were the active ingredients showing the greatest potential for translocation in the sap of the coconut tree stem; (ii) the pesticides imidacloprid and metalaxyl translocated upward in the stipe, and more rapidly than pesticides abamectin and cyproconazole, which moved slower to the aerial part of coconut plants. In chromatography analysis, no pesticide residues were quantified in water and coconut fruit pulp samples of coconut trees injected with pesticides, after the evaluated intervals.Research highlights: The proposed model allowed us to observe that the translocation is inversely proportional to the sorption of the pesticide in the stem of coconut trees. MenosAbstract: Aim of study: To present a mathematical model to simulate the translocation of pesticides injected into coconut trees. Pesticide residues in water and coconut pulp were also evaluated.Area of study: The data were obtained in coconut plants of the Itaporanga Experimental Field, located in the Municipality of Itaporanga d'Ajuda, Sergipe State, Brazil.Material and methods: To estimate the effect of pesticide site-sap coefficients and retardation factors on translocation and its phytosanitary behavior and risk of contamination of coconut fruits, the stipe was modeled by a classic dispersion-advection equation. The pesticides cyproconazole, azoxystrobin, dimethoate, imidacloprid, metalaxyl, and thiamethoxam were injected into the coconut palm stipe. The method used to extract pesticide residues from pulp, water and coconut sap samples was based on the QuEChERS methodology with modifications.Main results: Simulations showed that (i) the pesticides dimethoate, metalaxyl, and thiamethoxan were the active ingredients showing the greatest potential for translocation in the sap of the coconut tree stem; (ii) the pesticides imidacloprid and metalaxyl translocated upward in the stipe, and more rapidly than pesticides abamectin and cyproconazole, which moved slower to the aerial part of coconut plants. In chromatography analysis, no pesticide residues were quantified in water and coconut fruit pulp samples of coconut trees injected with pesticides, after the evaluated intervals.... Mostrar Tudo |
Thesagro: |
Agrotóxico; Coco; Contaminação; Fungicida; Impacto Ambiental; Modelo Matemático; Translocação. |
Thesaurus Nal: |
Coconuts; Environmental impact; Fate and transport models; Fungicides; Mathematical models; Metalaxyl; Translocation (plant physiology). |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1145922/1/Paraiba-Modeling-pesticide.pdf
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Marc: |
LEADER 02901naa a2200409 a 4500 001 2145922 005 2022-08-31 008 2022 bl uuuu u00u1 u #d 022 $a2171-9292 024 7 $ahttps://doi.org/10.5424/sjar/2022202-18326$2DOI 100 1 $aPARAIBA, L. C. 245 $aModeling pesticide translocation injected by endotherapy into the stem of coconut tree (Cocos nucifera L.).$h[electronic resource] 260 $c2022 520 $aAbstract: Aim of study: To present a mathematical model to simulate the translocation of pesticides injected into coconut trees. Pesticide residues in water and coconut pulp were also evaluated.Area of study: The data were obtained in coconut plants of the Itaporanga Experimental Field, located in the Municipality of Itaporanga d'Ajuda, Sergipe State, Brazil.Material and methods: To estimate the effect of pesticide site-sap coefficients and retardation factors on translocation and its phytosanitary behavior and risk of contamination of coconut fruits, the stipe was modeled by a classic dispersion-advection equation. The pesticides cyproconazole, azoxystrobin, dimethoate, imidacloprid, metalaxyl, and thiamethoxam were injected into the coconut palm stipe. The method used to extract pesticide residues from pulp, water and coconut sap samples was based on the QuEChERS methodology with modifications.Main results: Simulations showed that (i) the pesticides dimethoate, metalaxyl, and thiamethoxan were the active ingredients showing the greatest potential for translocation in the sap of the coconut tree stem; (ii) the pesticides imidacloprid and metalaxyl translocated upward in the stipe, and more rapidly than pesticides abamectin and cyproconazole, which moved slower to the aerial part of coconut plants. In chromatography analysis, no pesticide residues were quantified in water and coconut fruit pulp samples of coconut trees injected with pesticides, after the evaluated intervals.Research highlights: The proposed model allowed us to observe that the translocation is inversely proportional to the sorption of the pesticide in the stem of coconut trees. 650 $aCoconuts 650 $aEnvironmental impact 650 $aFate and transport models 650 $aFungicides 650 $aMathematical models 650 $aMetalaxyl 650 $aTranslocation (plant physiology) 650 $aAgrotóxico 650 $aCoco 650 $aContaminação 650 $aFungicida 650 $aImpacto Ambiental 650 $aModelo Matemático 650 $aTranslocação 700 1 $aFERREIRA, J. M. S. 700 1 $aFERRACINI, V. L. 700 1 $aRAMOS, S. R. R. 700 1 $aCERDEIRA, A. L. 700 1 $aASSALIN, M. R. 700 1 $aPAZIANOTTO, R. A. A. 700 1 $aSANTOS, A. J. dos 700 1 $aPARAÍBA, C. C. M. 773 $tSpanish Journal of Agricultural Research$gv. 20, n. 2, e1002, 2022.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
03/12/2015 |
Data da última atualização: |
17/03/2016 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
ARTICO, L. L.; ZULIANI, A. J. B.; MAZZOCATO, A. C. |
Afiliação: |
Leonardo Luís Artico, URCAMP; Alberi J. B. Zuliani, UFSM; ANA CRISTINA MAZZOCATO, CPPSUL. |
Título: |
Germinação e desenvolvimento de plântulas de Bromus auleticus para manutenção da variabilidade genética de acessos do Banco Ativo de Germoplasma de Forrageiras Nativas da Embrapa Pecuária Sul. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
In: JORNADA ACADÊMICA INTEGRADA, 30., 2015, Santa Maria. Anais... Santa Maria: UFSM, 2015. |
Idioma: |
Português |
Notas: |
JAI. |
Conteúdo: |
O gênero Bromus, pertencente a família Poaceae, encontra-se na porção cone sul da América onde é representado por espécies com importante valor forrageiro. |
Palavras-Chave: |
Cevadilha vacariana. |
Thesagro: |
Germinação; Planta forrageira. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/134797/1/Bromus-JAI.pdf
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Marc: |
LEADER 00864nam a2200181 a 4500 001 2030572 005 2016-03-17 008 2015 bl uuuu u00u1 u #d 100 1 $aARTICO, L. L. 245 $aGerminação e desenvolvimento de plântulas de Bromus auleticus para manutenção da variabilidade genética de acessos do Banco Ativo de Germoplasma de Forrageiras Nativas da Embrapa Pecuária Sul.$h[electronic resource] 260 $aIn: JORNADA ACADÊMICA INTEGRADA, 30., 2015, Santa Maria. Anais... Santa Maria: UFSM$c2015 500 $aJAI. 520 $aO gênero Bromus, pertencente a família Poaceae, encontra-se na porção cone sul da América onde é representado por espécies com importante valor forrageiro. 650 $aGerminação 650 $aPlanta forrageira 653 $aCevadilha vacariana 700 1 $aZULIANI, A. J. B. 700 1 $aMAZZOCATO, A. C.
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