Fig. 6.

a, b Dry matter (DM), and (c, d) total soluble solids content (TSS) in 16 weeks old beetroots of ‘Monty Rz’ and ‘Belushi Rz’ treated with (+UV-B) or without (-UV-B) 1.23 kJ m^− 2 UV-B radiation for 70 s, followed by storage at 15 °C and 98–100% relative humidity in darkness, for 3 and 7 days. Different letters denote statistical significance according to Tukey’s test (p ≤ 0.05). Data represent the mean ± SE, n = 5