Effects of waterlogging stress on plant-pathogen interaction between Fusarium poae and wheat/barley

LÁZARO L.; MARTÍNEZ M. (CORRESPONDING AUTHOR); STENGLEIN S.A.; ARATA A.; DINOLFO M.I.; LÁZARO L.; MARTÍNEZ M. (CORRESPONDING AUTHOR); STENGLEIN S.A.; ARATA A.; DINOLFO M.I.

ACTA SCIENTIARUM-AGRONOMY

UNIV ESTADUAL MARINGA

Lugar: Maringa; Año: 2019 p. 1 - 9

1679-9275

Corresponding author: (maurom@faa.unicen.edu.ar). Waterlogging stress is one of the abiotic factors that cause damage to crops, for example, by affecting the yield components and grain quality of wheat and barley, and Fusarium poae is one of the most common Fusarium species isolated from wheat and barley. The aim of this study was to evaluate the effects of waterlogging and F. poae on disease parameters, yield components and grain quality of durum and bread wheat and barley. The experiment was conducted using pots under greenhouse conditions, and four treatments were applied: control/control (W0F0), control/F. poae (W0F1), waterlogging/control (W1F0) and waterlogging/F. poae (W1F1). The results showed that the incidence, severity and Fusarium Head Blight (FHB) index of F. poae were higher in W0F1 than in W1F1, which suggested that waterlogging treatment did not generate favourable conditions for fungal growth. Therefore, yield components and grain composition and quality were significantly affected by Fusarium, and the waterlogging treatment induced changes in parameters primarily related to the industrial quality of wheat and barley. These results highlight the behaviour of wheat and barley under the combination of abiotic and biotic stress.