Table 3 Concentrations of Na⁺, K⁺, and K⁺/Na⁺ ratio in Psidium guajava exposed to the salt (NaCl) and drought stress (low water supply). Data refer to mean values (n = 3). The same letters along with columns are not significantly different according to the Tukey HSD post hoc test after ANOVA (p ≤ 0.05).

Control

0.46^d

0.06^d

0.11^d

1.31^a

0.39^a

0.50^a

2.85^a

6.50^a

4.55^a

10 dSm⁻¹

1.79^b

0.12^bc

0.22^bc

0.96^b

0.31^b

0.39^b

0.54^c

2.58^c

1.77^b

20 dSm⁻¹

2.91^a

0.13^b

0.36^b

0.82^bc

0.23^c

0.30^c

0.28^de

1.77^cd

0.83^c

Control + WS

0.80^c

0.09^c

0.19^c

1.20^a

0.38^b

0.40^a

1.50^b

4.22^b

2.11^b

10 dSm⁻¹ + WS

1.89^b

0.13^b

0.35^b

0.70^c

0.27^c

0.30^c

0.37^cd

2.08^cd

0.86^c

20 dSm⁻¹ + WS

3.02^a

0.16^a

0.49^a

0.50^d

0.13^d

0.19^d

0.17^e

0.81^d

0.39^c