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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
06/06/2019 |
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Actualizado : |
07/06/2019 |
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Tipo de producción científica : |
Poster |
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Autor : |
BARAIBAR, S.; GERMAN, S.; PAREJA, L.; PEREYRA, S. |
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Afiliación : |
SILVINA BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LUCIA PAREJA, Lucia Pareja Polo Agroalimentario y Agroindustrial, CENUR, Universidad de la Republica, Uruguay,; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Fungicide strategies to manage wheat stem rust. |
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Complemento del título : |
838-P. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
In: Proceedings of the International Congress of Plant Pathology (ICPP) 2018: Plant Health in A Global Economy, Boston. |
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Idioma : |
Inglés |
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Contenido : |
Abstract: Stem rust (SR), caused by Puccinia graminis f.sp. tritici, is one of the most destructive diseases of wheat in the Southern Cone of America. The main factor contributing to this has been the increased use of susceptible cultivars. Medium-long term efforts pursue the development of adapted lines resistant to local and Ug99+races (potential risk). However, the optimization of short-term strategies comprising the use of foliar fungicides are needed to manage SR. Field trials were established in 2015 and 2016 in Uruguay to evaluate application moments of metconazole+epoxiconazole (first symptoms, ZGS65 and ZGS71) and nozzle types (CJ03®, TTJ60®) in SR susceptible (cv.B601) and intermediate (cv.B501) cultivars. Six commercial fungicides, including combinations of DMIs, QoIs and SDHIs and a non-treated and a complete treatment were evaluated in cv.B601 in both years. Fungicide application at disease onset significantly (p ? 0.05) reduced SR severity, AUDPC and increased grain yield, test weight and thousand-kernel weight as compared to the non-treated and applications at ZGS71. Epoxiconazole and metconazole were detected in harvested grain if applied at ZGS71. Yet, concentrations were below the maximum residue levels (CODEX and EU). Significant differences were found among fungicides for SR severity, if applied at first symptoms. These results suggest that fungicides can effectively reduce SR severity and increase grain yield in susceptible cultivars if applied at disease onset. MenosAbstract: Stem rust (SR), caused by Puccinia graminis f.sp. tritici, is one of the most destructive diseases of wheat in the Southern Cone of America. The main factor contributing to this has been the increased use of susceptible cultivars. Medium-long term efforts pursue the development of adapted lines resistant to local and Ug99+races (potential risk). However, the optimization of short-term strategies comprising the use of foliar fungicides are needed to manage SR. Field trials were established in 2015 and 2016 in Uruguay to evaluate application moments of metconazole+epoxiconazole (first symptoms, ZGS65 and ZGS71) and nozzle types (CJ03®, TTJ60®) in SR susceptible (cv.B601) and intermediate (cv.B501) cultivars. Six commercial fungicides, including combinations of DMIs, QoIs and SDHIs and a non-treated and a complete treatment were evaluated in cv.B601 in both years. Fungicide application at disease onset significantly (p ? 0.05) reduced SR severity, AUDPC and increased grain yield, test weight and thousand-kernel weight as compared to the non-treated and applications at ZGS71. Epoxiconazole and metconazole were detected in harvested grain if applied at ZGS71. Yet, concentrations were below the maximum residue levels (CODEX and EU). Significant differences were found among fungicides for SR severity, if applied at first symptoms. These results suggest that fungicides can effectively reduce SR severity and increase grain yield in susceptible cultivars if applied at diseas... Presentar Todo |
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Palabras claves : |
CHEMICAL CONTROL; FUNGUS; WHEAT. |
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Thesagro : |
TRIGO. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02088nam a2200193 a 4500
001 1059819
005 2019-06-07
008 2018 bl uuuu u00u1 u #d
100 1 $aBARAIBAR, S.
245 $aFungicide strategies to manage wheat stem rust.$h[electronic resource]
260 $aIn: Proceedings of the International Congress of Plant Pathology (ICPP) 2018: Plant Health in A Global Economy, Boston.$c2018
520 $aAbstract: Stem rust (SR), caused by Puccinia graminis f.sp. tritici, is one of the most destructive diseases of wheat in the Southern Cone of America. The main factor contributing to this has been the increased use of susceptible cultivars. Medium-long term efforts pursue the development of adapted lines resistant to local and Ug99+races (potential risk). However, the optimization of short-term strategies comprising the use of foliar fungicides are needed to manage SR. Field trials were established in 2015 and 2016 in Uruguay to evaluate application moments of metconazole+epoxiconazole (first symptoms, ZGS65 and ZGS71) and nozzle types (CJ03®, TTJ60®) in SR susceptible (cv.B601) and intermediate (cv.B501) cultivars. Six commercial fungicides, including combinations of DMIs, QoIs and SDHIs and a non-treated and a complete treatment were evaluated in cv.B601 in both years. Fungicide application at disease onset significantly (p ? 0.05) reduced SR severity, AUDPC and increased grain yield, test weight and thousand-kernel weight as compared to the non-treated and applications at ZGS71. Epoxiconazole and metconazole were detected in harvested grain if applied at ZGS71. Yet, concentrations were below the maximum residue levels (CODEX and EU). Significant differences were found among fungicides for SR severity, if applied at first symptoms. These results suggest that fungicides can effectively reduce SR severity and increase grain yield in susceptible cultivars if applied at disease onset.
650 $aTRIGO
653 $aCHEMICAL CONTROL
653 $aFUNGUS
653 $aWHEAT
700 1 $aGERMAN, S.
700 1 $aPAREJA, L.
700 1 $aPEREYRA, S.
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Registro original : |
INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
22/10/2024 |
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Actualizado : |
22/10/2024 |
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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 : |
DIEGUEZ, H.; PIÑEIRO, G.; PARUELO, J. |
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Afiliación : |
HERNÁN DIEGUEZ, Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Ciudad Autónoma de Buenos Aires, C1417DSE, Argentina; GERVASIO PIÑEIRO, Cátedra de Ecología, Dpto. de RRNN y Ambiente, Facultad de Agronomía, Univ. de Bs.As., Buenos Aires, Argentina; FEVA, Facultad de Agronomía, Universidad de Buenos Aires, CONICET, Argentina; JOSÉ PARUELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Dpto. Métodos Cuantitativos y Sistemas de Información; Cátedra de Ecología, Dpto. RRNN y Ambiente, Fac. Agronomía, Argentina; IFEVA-CONICET. |
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Título : |
Unraveling impacts on carbon, water and energy exchange of Pinus plantations in South American temperate ecosystems. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Science of the Total Environment, 2024, Volume 953, 176150. https://doi.org/10.1016/j.scitotenv.2024.176150 |
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ISSN : |
0048-9697 |
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DOI : |
10.1016/j.scitotenv.2024.176150 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 24 April 2024, Revised 22 August 2024, Accepted 7 September 2024, Available online 10 September 2024, Version of Record 13 September 2024, To be published 25 November 2024. -- Corresponding author: Dieguez, H.; Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Ciudad Autónoma de Buenos Aires, Argentina; email:hdieguez@agro.uba.ar -- Funding: This work was supported by UBA and CONICET, which were not involved in the study design, data collection, analysis, or interpretation of data. -- Supplementary data. -- Editor: Kuishuang Fen. |
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Contenido : |
ABSTRACT.- Tree plantations are expanding in southern South America and their effects on ecosystem services, particularly climate regulation, are still not well understood. Here, we used remote sensing techniques and a paired design to analyze 33,000 ha of Pinus plantations along a broad geographical and environmental gradient (26-43° South latitude, 54?72° West longitude). Radiation interception, surface temperature, evapotranspiration, and albedo were assessed both in tree plantations stands and in adjacent uncultivated areas. Additionally, the climatic impact of tree plantations was quantified by analyzing changes in atmospheric radiative forcing and its carbon (C) equivalent. Tree plantations intercepted more radiation when replacing steppes, grasslands, and shrublands but not when replacing forests. The control exerted on radiation interception by precipitation decreased in both space and time after tree plantation. Furthermore, evapotranspiration notably increased in tree plantations. The lower albedo of tree plantations compared to uncultivated adjacent areas induces global warming through the biophysical pathway. Thus, the climate benefits of afforestation through C sequestration can be counteracted by 18 to 83 % due to albedo changes. It is necessary to fully consider the biophysical effects and water footprint of tree plantations in public policies that promote them, as well as in international carbon accounting mechanisms. © 2024 Elsevier B.V. |
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Palabras claves : |
Afforestation; C accounting; Global change; Radiative forcing; Remote sensing; Tree plantations. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 02944naa a2200253 a 4500
001 1064889
005 2024-10-22
008 2024 bl uuuu u00u1 u #d
022 $a0048-9697
024 7 $a10.1016/j.scitotenv.2024.176150$2DOI
100 1 $aDIEGUEZ, H.
245 $aUnraveling impacts on carbon, water and energy exchange of Pinus plantations in South American temperate ecosystems.$h[electronic resource]
260 $c2024
500 $aArticle history: Received 24 April 2024, Revised 22 August 2024, Accepted 7 September 2024, Available online 10 September 2024, Version of Record 13 September 2024, To be published 25 November 2024. -- Corresponding author: Dieguez, H.; Departamento de Métodos Cuantitativos y Sistemas de Información, Facultad de Agronomía, Universidad de Buenos Aires, Av. San Martín 4453, Ciudad Autónoma de Buenos Aires, Argentina; email:hdieguez@agro.uba.ar -- Funding: This work was supported by UBA and CONICET, which were not involved in the study design, data collection, analysis, or interpretation of data. -- Supplementary data. -- Editor: Kuishuang Fen.
520 $aABSTRACT.- Tree plantations are expanding in southern South America and their effects on ecosystem services, particularly climate regulation, are still not well understood. Here, we used remote sensing techniques and a paired design to analyze 33,000 ha of Pinus plantations along a broad geographical and environmental gradient (26-43° South latitude, 54?72° West longitude). Radiation interception, surface temperature, evapotranspiration, and albedo were assessed both in tree plantations stands and in adjacent uncultivated areas. Additionally, the climatic impact of tree plantations was quantified by analyzing changes in atmospheric radiative forcing and its carbon (C) equivalent. Tree plantations intercepted more radiation when replacing steppes, grasslands, and shrublands but not when replacing forests. The control exerted on radiation interception by precipitation decreased in both space and time after tree plantation. Furthermore, evapotranspiration notably increased in tree plantations. The lower albedo of tree plantations compared to uncultivated adjacent areas induces global warming through the biophysical pathway. Thus, the climate benefits of afforestation through C sequestration can be counteracted by 18 to 83 % due to albedo changes. It is necessary to fully consider the biophysical effects and water footprint of tree plantations in public policies that promote them, as well as in international carbon accounting mechanisms. © 2024 Elsevier B.V.
653 $aAfforestation
653 $aC accounting
653 $aGlobal change
653 $aRadiative forcing
653 $aRemote sensing
653 $aTree plantations
700 1 $aPIÑEIRO, G.
700 1 $aPARUELO, J.
773 $tScience of the Total Environment, 2024, Volume 953, 176150. https://doi.org/10.1016/j.scitotenv.2024.176150
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