Table 2.
Effect of salinity (S) and foliar application of chitosan dissolved in different organic acids (Ch ACE, Ch ASC, Ch CIT and Ch MAL) and their interactions on the Sodium (Na+) and Potassium (K+) contents (mg g−1 DW) of tomato plants. Data are presented as means ± SE (n = 3). Data followed by different letters are significantly different following Tukey’s honestly significant difference (HSD) test at p ≤ 0.05. DW: dry weight.
| Treatments | Na+ | K+ |
|---|---|---|
| Control | 6.37 ± 0.02 e | 1.42 ± 0.04 e |
| Ch ACE | 7.15 ± 0.02 c | 2.19 ± 0.01 c |
| Ch ASC | 6.83 ± 0.01 d | 2.35 ± 0.02 b |
| Ch CIT | 7.37 ± 0.04 b | 1.65 ± 0.01 d |
| Ch MAL | 6.66 ± 0.03 d | 2.49 ± 0.03 a |
| S | 12.67 ± 0.06 a | 0.728 ± 0.04 h |
| S + Ch ACE | 6.20 ± 0.02 e | 0.874 ± 0.01 fg |
| S + Ch ASC | 5.29 ± 0.01 g | 0.947 ± 0.01 f |
| S + Ch CIT | 6.35 ± 0.02 e | 0.805 ± 0.02 gh |
| S + Ch MAL | 5.50 ± 0.03 f | 0.884 ± 0.02 fg |