Wheat grains damaged by Fusarium graminearum: Alterations in yield, toxicity and protein composition

ORTEGA L.; ALBERIONE E.; MOURA M.C.; ALCONADA T.; ASTORECA A.

VEGETOS

Springer

Lugar: India; Año: 2019 vol. 32 p. 593 - 599

2229-4473

The aim of this study was to investigate alterations on wheatgrains, in relation to yield and quality parameters, such asinfection degree, protein composition and toxicity caused byisolates of Fusarium graminearum with differentaggressiveness. The disease degree on wheat samples wasevaluated by the following parameters: incidence, severity,damaged kernels percentage, yield, deoxynivalenol contentand protein constitution, which were analyzed employingaccurate quantitative statistics. High and positive correlationsamong the disease degree parameters were found, as well asnegative correlations between them and yield, meanwhile, thetotal protein content was correlated with yield but was notcorrelated with the disease degree. The data analysis showedthat the effect of the isolate was more significant that thecultivar in the disease degree for almost all the studiedvariables. The variability in the content of the deoxynivalenolmycotoxin showed a positive tendency in relation to theinfection degree. As a novel approach, the aggressiveness ofthe different isolates ranged from high to low allowing us toevaluate a wide range of the aftereffects of the disease