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Fig. 5 | BMC Plant Biology

Fig. 5

From: Preharvest application of ethephon and postharvest UV-B radiation improve quality traits of beetroot (Beta vulgaris L. ssp. vulgaris) as source of colourant

Fig. 5

Betalain and total phenolic contents in 16 weeks old beetroots of ‘Monty Rz’ (a, c, e) and ‘Belushi Rz’ (b, d, f) treated with (+UV-B) or without (-UV-B) 1.23 kJ m− 2 for 70 s, followed by storage at 15 °C and 98–100% relative humidity in darkness, for 3 and 7 days. Bn: betanin content; Vx: vulgaxanthin content; Bn:Vx: betanin to vulgaxanthin ratio; TPC: total phenolic content. a, b, e, f: Different letters denote statistical significance according to Tukey’s test (p ≤ 0.05). c, d: Different letters denote statistical significance according to Nemenyi’s test (p ≤ 0.05). Data represent the mean ± SE, n = 5

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