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| Registros recuperados : 45 | |
| 8. |  | POLZI, W.; SANTOS, A. J. dos; POLZI, P. Cadeia produtiva da madeira similaridades entre Chile e Parana. Serie Tecnica IPEF, Piracicaba, v. 14, n. 34, p. 186-187, jul. 2001. Edicao da Memoria do Simposio Ibero-Americano de Gestao e Economia Florestal, 1., 2001, Porto Seguro. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| 10. | | SANTOS, A. J. dos; CHOTGUIS, J. MIELKE, E. Analise da cadeia produtiva do xaxim (Dicksonia sellowiana) no Estado do Parana. Serie Tecnica IPEF, Piracicaba, v. 14, n. 34, p. 172-173, jul. 2001. Edicao da Memoria do Simposio Ibero-Americano de Gestao e Economia Florestal, 1., 2001, Porto Seguro. Resumo.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 45 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Alimentos e Territórios; Embrapa Meio Ambiente. |
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Data corrente: |
31/08/2022 |
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Data da última atualização: |
31/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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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. |
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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. |
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Título: |
Modeling pesticide translocation injected by endotherapy into the stem of coconut tree (Cocos nucifera L.). |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Spanish Journal of Agricultural Research, v. 20, n. 2, e1002, 2022. |
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ISSN: |
2171-9292 |
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DOI: |
https://doi.org/10.5424/sjar/2022202-18326 |
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Idioma: |
Inglês |
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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 |
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Thesagro: |
Agrotóxico; Coco; Contaminação; Fungicida; Impacto Ambiental; Modelo Matemático; Translocação. |
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Thesaurus NAL: |
Coconuts; Environmental impact; Fate and transport models; Fungicides; Mathematical models; Metalaxyl; Translocation (plant physiology). |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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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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