Table 4 The effects of bacterial inoculation, salinity and melatonin on concentrations of K+ and Na+ and K+/Na+ ratios in shoots and roots of common bean.
Factor | Shoot Na+ concentration (mg g−1) | Root Na+ concentration (mg g−1) | Shoot K+ concentration (mg g−1) | Root K+ concentration (mg g−1) | Shoot K+/Na+ | Root K+/Na+ |
|---|---|---|---|---|---|---|
Bacterial inoculations (I) | ||||||
NI | 9.11a | 8.69a | 18.70b | 13.62b | 5.96b | 3.12b |
RI | 7.01b | 8.13b | 24.14a | 19.07a | 8.37a | 4.78a |
Salinity levels (S) | ||||||
NS | 1.82c | 2.58c | 27.75a | 22.60a | 17.53a | 9.27a |
S1 | 8.85b | 8.91b | 20.75b | 15.70b | 2.71b | 1.81b |
S2 | 13.51a | 13.75a | 15.75c | 10.60c | 1.26c | 0.77c |
Priming (P) | ||||||
PM100 | 6.66c | 8.58a | 27.75a | 22.68a | 10.89a | 5.39a |
PH | 8.01b | 8.58a | 19.59b | 14.51b | 6.37b | 3.37b |
PD | 9.51a | 8.08b | 16.92c | 11.85c | 4.23c | 3.08c |
Bacterial inoculations × Salinity levels × Priming (RI × S × P) | ||||||
NI | ||||||
NS | ||||||
PM100 | 1.22k | 2k | 29c | 24c | 25.30a | 11.11b |
PH | 2j | 3j | 23fg | 18fg | 10.25c | 5.81e |
PD | 2j | 3j | 23fg | 18fg | 10.25c | 5.81e |
S1 | ||||||
PM100 | 9g | 11e | 22g | 17g | 2.45e | 1.58gh |
PH | 10f | 10f | 13j | 8j | 1.34e | 0.86i–k |
PD | 11e | 8h | 12jk | 7jk | 1.13e | 0.95i–k |
S2 | ||||||
PM100 | 12d | 12d | 18h | 13h | 1.53e | 1.13h–j |
PH | 14b | 13c | 11k | 6k | 0.83e | 0.51jk |
PD | 18a | 14b | 9l | 4l | 0.54e | 0.33k |
RI | ||||||
NS | ||||||
PM100 | 1k | 2k | 35a | 30a | 27.40a | 13.80a |
PH | 1k | 2k | 27d | 22d | 21.28b | 10.21c |
PD | 2j | 2k | 24ef | 19ef | 10.68c | 8.87d |
S1 | ||||||
PM100 | 5i | 8h | 32b | 27b | 6.16d | 3.37f |
PH | 7h | 9g | 23fg | 18fg | 3.25e | 2.03g |
PD | 9g | 6i | 17h | 12h | 1.91e | 2.05g |
S2 | ||||||
PM100 | 10f | 15a | 25e | 20e | 2.50e | 1.36hi |
PH | 12d | 13c | 15i | 10i | 1.28e | 0.81i–k |
PD | – | – | – | – | – | – |
Analysis of variance | ||||||
I | *** | *** | *** | *** | *** | *** |
S | *** | *** | *** | *** | *** | *** |
P | *** | *** | *** | *** | *** | *** |
I × S | *** | *** | *** | *** | ** | *** |
I × P | * | *** | *** | *** | ** | ns |
S × P | *** | *** | *** | *** | *** | *** |
I × S × P | *** | *** | * | * | ** | ** |