2.9. Statistical analysis
Data were analyzed according to a randomized block design with 7 landraces and 4 periods of storage as variability factors. One way ANOVA was carried on color, SST, TA, and CO2. For each storage time, the analysis of variance was focused on all landraces. The visual and crunchiness score analyses were carried out by two-way ANOVA, with the landrace as the first factor and the time of storage as the second factor. Significant differences (P 0.05) were evaluated with Tukey’s test (Systat 13.0, for Windows was used as statistical software). Relationships between sensory descriptors and instrumental analyses were analyzed using Sigma Plot version 12.0.3.