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| 1. |  | HAVIS, N.D.; BROWN, J.K.M.; CLEMENTE, G.; FREI, P.; JEDRYCZKA, M.; KACZMAREK, J.; KACZMAREK, M.; MATUSINSKY, P.; MCGRANN, G.R.D.; PEREYRA, S.; PIOTROWSKA, M.; SGHYER, H.; TELLIER, A.; HESS, M. Ramularia collo-cygni: an emerging pathogen of barley crops. Phytophathology, v. 105, n. 7, p. 895-904, 2015. OPEN ACCESS. Article History: Issue Date: 23 Jul 2015 / Published: 29 Jun 2015 / First Look: 27 Jan 2015 / Accepted: 16 Jan 2015.| Biblioteca(s): INIA La Estanzuela. |
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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 : |
11/02/2025 |
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Actualizado : |
09/04/2025 |
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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 : |
ERREGUERENA, I. A.; QUIROZ, F. J.; CAMBARERI, M.; PEREYRA, S.; HAVIS, N. D.; CARMONA, M. A. |
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Afiliación : |
IGNACIO ANTONIO ERREGUERENA, Plant Pathology-Crop Protection Group, National Institute of Agricultural Technology, Manfredi, Argentina; FACUNDO JOSÉ QUIROZ, Plant Health Group, National Institute of Agricultural Technology, Balcarce, Argentina; MATÍAS CAMBARERI, Chief Product Officer Cabure AgTech, Balvanera, Argentina; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORCID: https://orcid.org/0000-0002-5292-5078; NEIL DAVID HAVIS, Crop and Soil Research Group, Scotland's Rural College, Edinburgh, United Kingdom; MARCELO ANÍBAL CARMONA, Facultad de Agronomía, Catedra de Fitopatología, Universidad de Buenos Aires, Buenos Aires, Argentina. |
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Título : |
Assessing the impact of Ramularia leaf spot on barley: prospects for fungicide protection strategies and weather-based prediction models in Argentina. |
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Complemento del título : |
Original article. |
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Fecha de publicación : |
2025 |
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Fuente / Imprenta : |
Plant Pathology, 2025, Volume 74, Issue 3, Pages 858-872. https://doi.org/10.1111/ppa.14056 |
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ISSN : |
0032-0862 |
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DOI : |
10.1111/ppa.14056 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 15 August 2024, Revised 30 November 2024, Accepted 23 December 2024, First published 21 January 2025. -- Corresponding author: Erreguerena, I.A.; Plant Pathology-Crop Protection Group, National Institute of Agricultural Technology, Manfredi, Argentina; email:erreguerena.ignacio@inta.gob.ar -- Funding: This work was supported by the National Institute of Agricultural Technology (Argentina). -- Publisher: John Wiley and Sons Inc. |
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Contenido : |
ABSTRACT.- Ramularia leaf spot (RLS), caused by the fungus Ramularia collo-cygni (Rcc), has become a threat to barley production in Argentina and the world, causing grain yield and quality losses. Characteristics of the pathogen such as a long latency period, high evolutionary potential, numerous transposonic regions and the ability to infect alternative hosts facilitate Rcc adaption to environmental changes and/or control measures such as fungicides. RLS is considered a sporadic disease in Argentina and its occurrence is highly dependent on weather conditions. The objectives of this work were to quantify the impact of RLS on grain yield and its commercial quality, to establish an optimal protection period (PP) for barley with fungicides, and to describe the association between environmental variables and levels of RLS with the purpose of designing prediction models and more efficient protection strategies. Based on the results from field trials (n = 8), we estimated grain yield losses up to 16%, and these occurred due to reduced grain weight (8.7%) and size (20%). We also determined that the PP begins from the third detectable node (GS33) to first visible awns (GS49) and concluded that the flag leaf fully emerged stage (GS39) was the most efficient fungicide spraying time. Four possible forecast models were proposed based on the daily average temperature accumulated from early tillering (GS21) to GS39 stage, in combination with the number of days of soil water availability, number of days with water excess and duration of leaf wetness or accumulated rainfall from tillering to GS39 (n = 10). © 2025 British Society for Plant Pathology. MenosABSTRACT.- Ramularia leaf spot (RLS), caused by the fungus Ramularia collo-cygni (Rcc), has become a threat to barley production in Argentina and the world, causing grain yield and quality losses. Characteristics of the pathogen such as a long latency period, high evolutionary potential, numerous transposonic regions and the ability to infect alternative hosts facilitate Rcc adaption to environmental changes and/or control measures such as fungicides. RLS is considered a sporadic disease in Argentina and its occurrence is highly dependent on weather conditions. The objectives of this work were to quantify the impact of RLS on grain yield and its commercial quality, to establish an optimal protection period (PP) for barley with fungicides, and to describe the association between environmental variables and levels of RLS with the purpose of designing prediction models and more efficient protection strategies. Based on the results from field trials (n = 8), we estimated grain yield losses up to 16%, and these occurred due to reduced grain weight (8.7%) and size (20%). We also determined that the PP begins from the third detectable node (GS33) to first visible awns (GS49) and concluded that the flag leaf fully emerged stage (GS39) was the most efficient fungicide spraying time. Four possible forecast models were proposed based on the daily average temperature accumulated from early tillering (GS21) to GS39 stage, in combination with the number of days of soil water availability,... Presentar Todo |
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Palabras claves : |
Barley; Control strategy; Forecast model; Fungicide spraying time; PROTECCION VEGETAL; Ramularia collo-cygni; SISTEMA AGRÍCOLA-GANADERO - INIA. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03093naa a2200301 a 4500
001 1065051
005 2025-04-09
008 2025 bl uuuu u00u1 u #d
022 $a0032-0862
024 7 $a10.1111/ppa.14056$2DOI
100 1 $aERREGUERENA, I. A.
245 $aAssessing the impact of Ramularia leaf spot on barley$bprospects for fungicide protection strategies and weather-based prediction models in Argentina.$h[electronic resource]
260 $c2025
500 $aArticle history: Received 15 August 2024, Revised 30 November 2024, Accepted 23 December 2024, First published 21 January 2025. -- Corresponding author: Erreguerena, I.A.; Plant Pathology-Crop Protection Group, National Institute of Agricultural Technology, Manfredi, Argentina; email:erreguerena.ignacio@inta.gob.ar -- Funding: This work was supported by the National Institute of Agricultural Technology (Argentina). -- Publisher: John Wiley and Sons Inc.
520 $aABSTRACT.- Ramularia leaf spot (RLS), caused by the fungus Ramularia collo-cygni (Rcc), has become a threat to barley production in Argentina and the world, causing grain yield and quality losses. Characteristics of the pathogen such as a long latency period, high evolutionary potential, numerous transposonic regions and the ability to infect alternative hosts facilitate Rcc adaption to environmental changes and/or control measures such as fungicides. RLS is considered a sporadic disease in Argentina and its occurrence is highly dependent on weather conditions. The objectives of this work were to quantify the impact of RLS on grain yield and its commercial quality, to establish an optimal protection period (PP) for barley with fungicides, and to describe the association between environmental variables and levels of RLS with the purpose of designing prediction models and more efficient protection strategies. Based on the results from field trials (n = 8), we estimated grain yield losses up to 16%, and these occurred due to reduced grain weight (8.7%) and size (20%). We also determined that the PP begins from the third detectable node (GS33) to first visible awns (GS49) and concluded that the flag leaf fully emerged stage (GS39) was the most efficient fungicide spraying time. Four possible forecast models were proposed based on the daily average temperature accumulated from early tillering (GS21) to GS39 stage, in combination with the number of days of soil water availability, number of days with water excess and duration of leaf wetness or accumulated rainfall from tillering to GS39 (n = 10). © 2025 British Society for Plant Pathology.
653 $aBarley
653 $aControl strategy
653 $aForecast model
653 $aFungicide spraying time
653 $aPROTECCION VEGETAL
653 $aRamularia collo-cygni
653 $aSISTEMA AGRÍCOLA-GANADERO - INIA
700 1 $aQUIROZ, F. J.
700 1 $aCAMBARERI, M.
700 1 $aPEREYRA, S.
700 1 $aHAVIS, N. D.
700 1 $aCARMONA, M. A.
773 $tPlant Pathology, 2025, Volume 74, Issue 3, Pages 858-872. https://doi.org/10.1111/ppa.14056
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