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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
02/08/2017 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
CUADRO, R.; MOLFINO, J.H.; QUINCKE, A. |
Afiliación : |
WASHINGTON ROBIN CUADRO LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Ing. Agr. Consultor Independiente.; Ing. Agr. Consultor Independiente. |
Título : |
Sistema de soporte para la recomendación de fertilización fosfatada en pasturas. |
Fecha de publicación : |
2017 |
Fuente / Imprenta : |
Agro temario, 2017, v. 16, no. 64, p. 4-5. |
Páginas : |
p. 4-5 |
Idioma : |
Español |
Contenido : |
La competitividad de la producción de carne y leche de Uruguay se basa en gran medida en la rentabilidad del sistema pastoril. A su vez, es ampliamente conocido que se necesita
contar con especies leguminosas forrajeras para aumentar la producción de forraje, tanto en cantidad como en calidad, y así lograr intensificar la producción pecuaria (Millot et al., 1987). Sin embargo, los suelos del Uruguay son naturalmente deficientes en su capacidad de suministro de fósforo (P) (Morón, 2008, Barbazán et al., 2007). Por lo tanto, el fertilizante fosfatado es un insumo central en pasturas a base de leguminosas. Varios autores nacionales han revisado y resumido la trayectoria de experimentación e investigación sobre el tema (Morón, 2007; Bordoli, 2007). En general, se reconoce que las pautas y recomendaciones vigentes presentan limitantes para implementar un adecuado manejo de la fertilización fosfatada en forma generalizada a nivel de país. El objetivo general es desarrollar un sistema de soporte para la recomendación de fertilización de pasturas. |
Thesagro : |
FERTILIZACION FOSFATADA; PASTURA. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/7154/1/Cuadro-Quincke-Sistema-soporte-fertilizacion-P.pdf
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Marc : |
LEADER 01559naa a2200181 a 4500 001 1028633 005 2017-08-02 008 2017 bl uuuu u00u1 u #d 100 1 $aCUADRO, R. 245 $aSistema de soporte para la recomendación de fertilización fosfatada en pasturas. 260 $c2017 300 $ap. 4-5 520 $aLa competitividad de la producción de carne y leche de Uruguay se basa en gran medida en la rentabilidad del sistema pastoril. A su vez, es ampliamente conocido que se necesita contar con especies leguminosas forrajeras para aumentar la producción de forraje, tanto en cantidad como en calidad, y así lograr intensificar la producción pecuaria (Millot et al., 1987). Sin embargo, los suelos del Uruguay son naturalmente deficientes en su capacidad de suministro de fósforo (P) (Morón, 2008, Barbazán et al., 2007). Por lo tanto, el fertilizante fosfatado es un insumo central en pasturas a base de leguminosas. Varios autores nacionales han revisado y resumido la trayectoria de experimentación e investigación sobre el tema (Morón, 2007; Bordoli, 2007). En general, se reconoce que las pautas y recomendaciones vigentes presentan limitantes para implementar un adecuado manejo de la fertilización fosfatada en forma generalizada a nivel de país. El objetivo general es desarrollar un sistema de soporte para la recomendación de fertilización de pasturas. 650 $aFERTILIZACION FOSFATADA 650 $aPASTURA 700 1 $aMOLFINO, J.H. 700 1 $aQUINCKE, A. 773 $tAgro temario, 2017$gv. 16, no. 64, p. 4-5.
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INIA Tacuarembó (TBO) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
23/10/2015 |
Actualizado : |
15/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
LADO, J.; RODRIGO, M.J.; LÓPEZ-CLIMENT, M.; GÓMEZ-CADENAS, A.; ZACARÍAS, L. |
Afiliación : |
JOANNA LADO LINDNER, IATA (Instituto de Agroquímica y Tecnología de Alimentos); INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA JESÚS RODRIGO, IATA (Instituto de Agroquímica y Tecnología de Alimentos); MARÍA LÓPEZ-CLIMENT, Universidad Jaume I de Castellón (ES); AURELIO GÓMEZ-CADENAS, Universidad Jaume I de Castellón (ES); LORENZO ZACARÍAS, IATA (Instituto de Agroquímica y Tecnología de Alimentos). |
Título : |
Implication of the antioxidant system in chilling injury tolerance in the red peel of grapefruit. |
Fecha de publicación : |
2015 |
Fuente / Imprenta : |
Postharvest Biology and Technology, 2016, 111 , art. no. 10121 , pp. 214 - 223 . |
DOI : |
10.1016/j.postharvbio.2015.09.013 |
Idioma : |
Inglés |
Notas : |
Article history: Received 20 February 2015 / Received in revised form 10 September 2015 / Accepted 10 September 2015. |
Contenido : |
ABSTRACT.
Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star
Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with
enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay revealed considerably higher activity in the lycopene-accumulating peel than in the yellow peel at harvest time and throughout the entire cold storage and shelf-life period. Enzymatic activity and gene expression analyses of GR, APX and SOD did not reveal the involvement of these antioxidant enzymes in the protection against CI. However, high CAT activity was detected in the peel of CI-tolerant fruit, although this difference did not correlate with changes in the expression levels of the CAT1 and CAT2 genes. Therefore, the boost in singlet oxygen scavenging capacity is likely the primary factor responsible for CI tolerance in the lycopene-accumulating peel of grapefruit.
@ 2015 Elsevier B.V. All rights reserved. MenosABSTRACT.
Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star
Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with
enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay reveale... Presentar Todo |
Thesagro : |
ANTIOXIDANTES; CITRUS; DANOS POR HELADA; LYCOPENE. |
Asunto categoría : |
-- |
Marc : |
LEADER 03039naa a2200241 a 4500 001 1053719 005 2019-10-15 008 2015 bl uuuu u00u1 u #d 024 7 $a10.1016/j.postharvbio.2015.09.013$2DOI 100 1 $aLADO, J. 245 $aImplication of the antioxidant system in chilling injury tolerance in the red peel of grapefruit. 260 $c2015 500 $aArticle history: Received 20 February 2015 / Received in revised form 10 September 2015 / Accepted 10 September 2015. 520 $aABSTRACT. Previous observations have indicated that the red peel areas of grapefruit with high lycopene concentrations were more tolerant to CI than yellow peel areas (Lado et al., 2015a). Because lycopene is a carotene with powerful antioxidant capacity, this study investigated whether the CI tolerance of the lycopene-accumulating rind of grapefruit may be due to an enhancement of the enzymatic and/or nonenzymatic antioxidant systems. Total antioxidant capacity, antioxidant metabolite (GSH and AsA) contents, and antioxidant enzyme (GR [glutathione reductase], ascorbate peroxidase [APX], catalase [CAT] and superoxide dismutase [SOD]) activity and gene expression were measured in the peel of Star Ruby grapefruit with contrasting CI tolerance during storage at 2 C for up to 58 d. The peel of CI-tolerant fruit exhibited a lower lipid peroxidation level (MDA content). The hydrogen peroxide concentration was similar after 3 weeks of storage, when the differences in chilling damage between sensitive and tolerant fruit were noticeable, suggesting that the increase in H2O2 is a response of flavedo cells to cold stress that is not necessarily related to the development of CI. Moreover, CI tolerance was not associated with enhancement of either total antioxidant capacity or glutathione and AsA contents, indicating that such antioxidant responses may be cold-mediated and not directly linked to chilling tolerance. Analysis of singlet oxygen scavenging capacity by the SOAC assay revealed considerably higher activity in the lycopene-accumulating peel than in the yellow peel at harvest time and throughout the entire cold storage and shelf-life period. Enzymatic activity and gene expression analyses of GR, APX and SOD did not reveal the involvement of these antioxidant enzymes in the protection against CI. However, high CAT activity was detected in the peel of CI-tolerant fruit, although this difference did not correlate with changes in the expression levels of the CAT1 and CAT2 genes. Therefore, the boost in singlet oxygen scavenging capacity is likely the primary factor responsible for CI tolerance in the lycopene-accumulating peel of grapefruit. @ 2015 Elsevier B.V. All rights reserved. 650 $aANTIOXIDANTES 650 $aCITRUS 650 $aDANOS POR HELADA 650 $aLYCOPENE 700 1 $aRODRIGO, M.J. 700 1 $aLÓPEZ-CLIMENT, M. 700 1 $aGÓMEZ-CADENAS, A. 700 1 $aZACARÍAS, L. 773 $tPostharvest Biology and Technology, 2016, 111 , art. no. 10121 , pp. 214 - 223 .
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