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. 2016 Apr 21;16:98. doi: 10.1186/s12870-016-0781-9

Fig. 2.

Fig. 2

Variation in tissue Na+、K+ content and K+/Na+ ratio in the four test species in response to salinity stress. a Na+ content in the root, b Na+ content in the stem, c Na+ content in the leaf, d K+ content in the root, e K+ content in the stem, f K+ content in the leaf, g K+/Na+ ratio in the root, h K+/Na+ ratio in the stem, i K+/Na+ ratio in the leaf. *,**: means differ significant from levels in the control treatment (P < 0.05 and < 0.01, respectively)