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. 2020 Feb 14;10:2654. doi: 10.1038/s41598-020-59638-4

Figure 5.

Figure 5

Photosynthetic pigments in maca plants grown under UV-transmitting and -blocking filters. Chla (a), Chlb (b), Chla/Chlb ratio (c), Total carotenoids (d), Total Carotenoids/Total Chl ratio (e) and de-epoxidation state (f) were determined in 4- and 7-month-old plants grown under mountain ecosystem. Error bars represent the standard error of the mean (n = 6). The P-values indicate the significance of the effects of treatment (UV), plant age (Age) and their interaction (UV*Age), all calculated from a two-way ANOVA. Differences between means are indicated by different letters (P < 0.05). Control, UV-transmitting filter. UV-block, UV-blocking filter. Chl, chlorophyll. A, antheraxanthin. Z, zeaxanthin. V, violaxanthin. DW, dry weight.