Shoot and root Na+/K+ content in control and NaCl-treated grafted seedlings with transgene CmHKT1;1 cucumber as rootstock. Grafted cucumber seedlings cultivated in hydroponics with 75 mM NaCl for 7 days. Shoot Na+ content (A), K+ content (C), and Na+/K+ ratio (E). Root Na+ content (B), K+ content (D), and Na+/K+ ratio (F). WT, wild type. TG, transgene CmHKT1;1 cucumber. WT/WT, WT as the scion and rootstock; WT/TG, WT as the scion, TG as the rootstock. Each value is the mean of three replications ± standard error of the means. Columns with different letters indicate they are significantly different at the p < 0.05 level (Duncan test).