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. 2022 Nov 14;22:528. doi: 10.1186/s12870-022-03907-z

Fig. 1.

Fig. 1

The phenotype and the value of physiological parameters of grapevine plants under Control, salt stress, and alkali stress conditions after 20 days. a The phenotype of grapevine leaves. b Pn and Gs. c Tr and Ci. d Fv/Fm and NPQ. e Chlorophyll content and Rubisco activity. f Na+ and K+ content. g Ratio of Na+/K+. Lowercase letters represent significant differences among sampling treatments (p < 0.05)