Fig. 4

Area per dry weight of semi-polar compounds detected at 280 nm in sugar beet roots comparing well and badly storable varieties at T0 and T4. A PCA plot colored by storability. B Heatmap clustered by average and grey-marked compounds do not behave in a variety-specific manner. C Area per dry weight of three semi-polar compounds that behave in a variety-specific manner. Error bars represent 5%-error since biological replicates were pooled. From left to right varieties are presented in the following order: V6 (green bar), V1 (green bar), V2 (purple bar), V5 (purple bar)