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How leaf rust disease and its control with fungicides affect dough properties, gluten quality and loaf volume under different N rates in wheat
Resumen
The unique viscoelastic properties of gluten make bread wheat (Triticum aestivum L.) a staple food. The specific balance between gluten fractions, together with grain protein content (GPC), defines nutritional and end-use properties. The leaf rust (Puccinia triticina Eriks.) and its control using succinate dehydrogenase inhibitors (SDHIs) fungicides together with nitrogen (N) fertilization could alter the GPC and its composition during the grain-filling
[ver mas...]
The unique viscoelastic properties of gluten make bread wheat (Triticum aestivum L.) a staple food. The specific balance between gluten fractions, together with grain protein content (GPC), defines nutritional and end-use properties. The leaf rust (Puccinia triticina Eriks.) and its control using succinate dehydrogenase inhibitors (SDHIs) fungicides together with nitrogen (N) fertilization could alter the GPC and its composition during the grain-filling period, modifying dough properties. The aim of this study was to investigate the effects of leaf rust, its control using fluxapyroxad (SDHI) and the interaction with N fertilization on breadmaking quality of wheat. Two field experiments were conducted during 2014 and 2015 in a split-split plot design with three fungicide treatments as main plots and three N fertilization rates as subplots using a susceptible cultivar. Leaf rust reduced GPC and modified its composition. The disease shortened the grain-filling period and reduced gluten content. Gluten tenacity (AlvP) was more affected than gluten extensibility (AlvL) resulting in doughs with lower AlvP/L ratio, minor gluten strength and inferior loaf volume. The treatment containing fluxapyroxad showed better levels of disease control and it also evidenced additional beneficial effects in most of the evaluated parameters compared to the treatment without this active ingredient.
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Autor
Fleitas, María Constanza;
Schierenbeck, Matías;
Gerard, Guillermo Sebastián;
Dietz, Juan Ignacio;
Golik, Silvina Inés;
Campos, Pablo Eduardo;
Simón, María Rosa;
Fuente
Journal of Cereal Science 80 : 119-127 (March 2018)
Fecha
2018-03
ISSN
0733-5210
Formato
pdf
Tipo de documento
artículo
Palabras Claves
Derechos de acceso
Restringido
Excepto donde se diga explicitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)