*2.6. Statistical Analysis*

Correlation analysis was performed using the functions provided by Microsoft Excel 2013's Analysis ToolPak add-in program. The statistical evaluations for four-way ANOVA followed the functions by Sváb (1981) [29] and Weber (1967) [30], with the help of the Microsoft Excel background. The significance between the main e ffect and the interactions were developed by functions from Weber [30], the *df* values in ANOVA for these are given in Table 2.

**Table 2.** ANOVAs for disease index, FDK, and DON contamination for the susceptibility window experiment, 2013 and 2014, Szeged.

