The impact of Septoria tritici blotch in bread making quality among argentinean wheat cultivars

Septoria tritici blotch (STB), caused by <i>Zymoseptoria tritici</i> is a relevant foliar wheat disease worldwide. Several reports show the importance of STB on grain yield, their components and grain protein while little is known about its effect on the rheological properties of the whe...

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Detalles Bibliográficos
Autores: Castro, Ana Carolina, Simón, María Rosa
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/107494
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107494
Access Level:acceso abierto
Palabra clave:Ciencias Agrarias
wheat
Septoria tritici blotch
bread making quality
rheological properties
Descripción
Sumario:Septoria tritici blotch (STB), caused by <i>Zymoseptoria tritici</i> is a relevant foliar wheat disease worldwide. Several reports show the importance of STB on grain yield, their components and grain protein while little is known about its effect on the rheological properties of the wheat flour. The scarce literature found, only mentions the effect of the complex of foliar diseases on wheat quality, without individualizing the effect of the different pathogens separately. This study analyze the influence of increasing doses of inoculum of <i>Zymoseptoria tritici</i>, on the bread making quality of ten Argentinean wheat cultivars and its possible variation according to their quality group. The increase of inoculum concentration augmented the area under disease progress curve, decreased green flag leaf area duration and green leaf area duration. Cultivars K. Flecha and B.75 Aniversario had the lowest green flag leaf area duration causing higher reduction in grain filling period and higher reductions in P, indicating a lower gliadin/glutenin ratio. STB decreased P/L and E while L, W, D, SV and bread volume increased. Cultivars differed in rheological parameters according to their quality group. Gluten/protein relationship was significant in quality group 1 and non-significant in cultivars belonging to quality group 2 and 3.