The variability recorded in the two independent experiments
allowed us to verify the relationship between DON
production and biomass. Data of biomass and DON
production from each replicate of the different Fusarium/
antagonist combinations on rice at different times were
subjected to the analysis of variance of regression. For the
F. graminearum 124/T. gamsii 6085 experiment, a three
parameters exponential growth model with an R2 of 0.99
(Fig. 4a) was found to be the best to explain the correlation
between DON and biomass (two and one parameter
models had slightly lower R2 values of 0.97 and 0.87,
respectively). This model was valid for data from 14 and
21 days where DON and biomass grew simultaneously.