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. 2021 Jan 12;22(2):685. doi: 10.3390/ijms22020685

Figure 4.

Figure 4

Reaction of the grass pea leaf and stem photosynthetic apparatus to salinity: (a) photosynthetic pigment content (n = 5); (b) pigment ratios (n = 5); (c) structural and functional parameters of PSII (n = 10); Chl a + b—total chlorophylls, Chl a—chlorophyll a, Chl b—chlorophyll b, Car—carotenoids; all of the values in c were expressed relative to the control (set as 1); abbreviations—see chapter 4.3.2.; RU—relative units; different letters—statistically significant differences within each organ (leaf-uppercase, stem-lowercase) at p ≤ 0.05.