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| 64. |  | BEMHAJA, M.; BERRETTA, E.J.; RISSO, D. Mejoramiento de campo. In: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL GLENCOE. JORNADA, 27 DE OCTUBRE, PAYSANDÚ, 1994. Pasturas y producción animal en basalto. Tacuarembó, Uruguay: INIA, 1994. p. 2-11 (INIA Serie Actividades de Difusión ; 37)| Biblioteca(s): INIA Tacuarembó. |
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| 70. | | RISSO, D.; PITTALUGA, O.; BERRETTA, E.J. Recría y engorde de terneros y novillos en campo natural y mejorado de Basalto. ln: INIA TACUAREMBÓ. UNIDAD EXPERIMENTAL GLENCOE. JORNADA, 11 SETIEMBRE, , PAYSANDÚ, URUGUAY, 1996. Producción ganadera en Basalto. Tacuarembó (Uruguay): INIA, 1996. cap. 12, p. 1-8 (INIA Serie Actividades de Difusión ; 108)| Biblioteca(s): INIA Tacuarembó. |
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| 72. | | BEMHAJA, M.; BERRETTA, E.J.; BRITO, G. Respuesta a la fertilización nitrogenada de campo natural en Basalto profundo 3. Fertilización de pasturas naturales In: Berretta, E.J. (Ed.). Reunión del Grupo Técnico Regional del Cono Sur en mejoramiento y utilización de los recursos forrajeros del área tropical y subtropical, Grupos Campos, 14., 1994, Termas del Arapey, Salto, Uruguay. Anales. Montevideo (Uruguay): INIA, 1998. p. 119-122 (INIA Serie Técnica ; 94)| Biblioteca(s): INIA La Estanzuela; INIA Las Brujas; INIA Tacuarembó. |
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| 79. | | BERRETTA, E.J.; RISSO, D.; MONTOSSI, F.; PIGURINA, G. Campos in Uruguay. In: LEMAIRE, G.; HODGSON, J.; DE MORAES, A.; CARVALHO, P.C. DE F.; NABINGER, C. (Ed.). Grassland ecophysiology and granzing ecology. Oxfordshire, OX (UK): Cab International, 2000. p. 377-394 Capítulo 19.| Biblioteca(s): INIA Tacuarembó. |
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| 80. | | MONTOSSI, F.; PIGURINA, G.; BERRETTA, E.J.; SANTAMARINA, I. A comparative grazing study of sheep and cattle diet selection on native pastures in Uruguay. In: International Grassland Congress, 19., 11-21 de febrero, San Pedro, San Pablo, Brazil. Proceedings. Pircicaba: FEALQ, 2001. p. 345-347| Biblioteca(s): INIA Tacuarembó. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
06/06/2019 |
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Actualizado : |
06/06/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
BESIL, N.; CESIO, V.; LUQUE, E.; PINTOS, P.; RIVAS, F.; HEINZEN, H. |
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Afiliación : |
NATALIA BESIL, Universidad de la República (UdelaR)/ Facultad de Química; VERÓNICA CESIO, Universidad de la República (UdelaR)/ Facultad de Química; MAYZA ELEANA LUQUE NUÑEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO MAXIMILIANO PINTOS RODRIGUEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS FERNANDO RIVAS GRELA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; HORACIO HEINZEN, Universidad de la República (UdelaR)/ Facultad de Química. |
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Título : |
Dissipation of pre-harvest pesticides on "Clementine" mandarins after open field application, and their persistence when stored under conventional postharvest conditions. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Horticulturae. 2018, vol.4, Issue 4:55. |
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DOI : |
10.3390/horticulturae4040055 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 13 October 2018 / Revised: 11 December 2018 / Accepted: 12 December 2018 / Published: 18 December 2018.
This article belongs to the Special Issue Postharvest Disease Development: Pre and/or Postharvest Practices. |
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Contenido : |
ABSTRACT.
The dissipation of field-applied difenoconazole, imidacloprid, pyraclostrobin and spinosad on Clementine mandarins (Citrus clementina Hort. ex Tan.) under controlled conditions throughout the citrus production chain was assessed. At harvest, 42 days after application, the dissipation of these pesticides were 80, 92, and 48% for difenoconazole, imidacloprid, pyraclostrobin, respectively, and spinosad was below the level of detectability. At day 28 after application, spinosad was no longer detected. The model equations that best describe the dissipation curves of these pesticides on Clementine mandarins showed different patterns. Their half-life on Clementine, calculated by the best-fitted experimental data, were 19.2 day (1st-order model) for difenoconazole, 4.1 day (Root Factor (RF) 1st-order model) for imidacloprid, 39.8 day (2nd-order model) for pyraclostrobin and 5.8 day (1st-order model) for spinosad. These results are the first record of pyraclostrobin persistence on mandarins, showing a longer half-life in this matrix than those reported for any other fruit. The treated fruit were harvested and submitted to the usual postharvest treatments: first, a hypochlorite drenching was performed; as a second step, imazalil and wax were applied, and then the mandarins were stored at 4 °C. After 32 days, cold storage caused no significant effects on the residue levels of the four pesticides compared with those determined on freshly harvested mandarins. All residues were below their Codex and European Union (EU) maximum residue limit (MRL) for mandarin since the spray application day. MenosABSTRACT.
The dissipation of field-applied difenoconazole, imidacloprid, pyraclostrobin and spinosad on Clementine mandarins (Citrus clementina Hort. ex Tan.) under controlled conditions throughout the citrus production chain was assessed. At harvest, 42 days after application, the dissipation of these pesticides were 80, 92, and 48% for difenoconazole, imidacloprid, pyraclostrobin, respectively, and spinosad was below the level of detectability. At day 28 after application, spinosad was no longer detected. The model equations that best describe the dissipation curves of these pesticides on Clementine mandarins showed different patterns. Their half-life on Clementine, calculated by the best-fitted experimental data, were 19.2 day (1st-order model) for difenoconazole, 4.1 day (Root Factor (RF) 1st-order model) for imidacloprid, 39.8 day (2nd-order model) for pyraclostrobin and 5.8 day (1st-order model) for spinosad. These results are the first record of pyraclostrobin persistence on mandarins, showing a longer half-life in this matrix than those reported for any other fruit. The treated fruit were harvested and submitted to the usual postharvest treatments: first, a hypochlorite drenching was performed; as a second step, imazalil and wax were applied, and then the mandarins were stored at 4 °C. After 32 days, cold storage caused no significant effects on the residue levels of the four pesticides compared with those determined on freshly harvested mandarins. All residues were ... Presentar Todo |
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Palabras claves : |
DEGRADATION DYNAMIC; LC-MS/MS; PESTICIDE RESIDUES. |
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Thesagro : |
CITRUS. |
|
Asunto categoría : |
F01 Cultivo |
|
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/12791/1/horticulturae-04-00055.pdf
https://www.mdpi.com/2311-7524/4/4/55
|
|
Marc : |
LEADER 02625naa a2200253 a 4500
001 1059829
005 2019-06-06
008 2018 bl uuuu u00u1 u #d
024 7 $a10.3390/horticulturae4040055$2DOI
100 1 $aBESIL, N.
245 $aDissipation of pre-harvest pesticides on "Clementine" mandarins after open field application, and their persistence when stored under conventional postharvest conditions.$h[electronic resource]
260 $c2018
500 $aArticle history: Received: 13 October 2018 / Revised: 11 December 2018 / Accepted: 12 December 2018 / Published: 18 December 2018. This article belongs to the Special Issue Postharvest Disease Development: Pre and/or Postharvest Practices.
520 $aABSTRACT. The dissipation of field-applied difenoconazole, imidacloprid, pyraclostrobin and spinosad on Clementine mandarins (Citrus clementina Hort. ex Tan.) under controlled conditions throughout the citrus production chain was assessed. At harvest, 42 days after application, the dissipation of these pesticides were 80, 92, and 48% for difenoconazole, imidacloprid, pyraclostrobin, respectively, and spinosad was below the level of detectability. At day 28 after application, spinosad was no longer detected. The model equations that best describe the dissipation curves of these pesticides on Clementine mandarins showed different patterns. Their half-life on Clementine, calculated by the best-fitted experimental data, were 19.2 day (1st-order model) for difenoconazole, 4.1 day (Root Factor (RF) 1st-order model) for imidacloprid, 39.8 day (2nd-order model) for pyraclostrobin and 5.8 day (1st-order model) for spinosad. These results are the first record of pyraclostrobin persistence on mandarins, showing a longer half-life in this matrix than those reported for any other fruit. The treated fruit were harvested and submitted to the usual postharvest treatments: first, a hypochlorite drenching was performed; as a second step, imazalil and wax were applied, and then the mandarins were stored at 4 °C. After 32 days, cold storage caused no significant effects on the residue levels of the four pesticides compared with those determined on freshly harvested mandarins. All residues were below their Codex and European Union (EU) maximum residue limit (MRL) for mandarin since the spray application day.
650 $aCITRUS
653 $aDEGRADATION DYNAMIC
653 $aLC-MS/MS
653 $aPESTICIDE RESIDUES
700 1 $aCESIO, V.
700 1 $aLUQUE, E.
700 1 $aPINTOS, P.
700 1 $aRIVAS, F.
700 1 $aHEINZEN, H.
773 $tHorticulturae. 2018, vol.4, Issue 4:55.
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