Predictor variables | Correlation | Direct effects (D) | Indirect effects (I) |  |  |  |  |  |  | Total effects (D + I) | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Na+ conc. | Survival | K+ conc. | Na+-K+ ratio | Biomass | Shoot length | SPAD | Total (I) | |||||
Shoot | Root | |||||||||||
Na+ concentration | 0.692 | 0.147 |  | 0.220 | −0.049 | 0.015 | 0.156 | 0.117 | 0.027 | 0.057 | 0.543 | 0.690 |
Survival | −0.795 | −0.309 | − 0.51 |  | −0.056 | − 0.010 | 0.171 | 0.138 | −0.031 | − 0.046 | −0.485 | − 0.794 |
K+ concentration | −0.184 | − 0.104 | − 0.121 | 0.061 |  | − 0.11 | 0.04 | 0.048 | 0.003 | 0.005 | −0.074 | − 0.178 |
Na+-K+ ratio | 0.440 | 0.024 | 0.035 | 0.093 | 0.035 | Â | 0.110 | 0.091 | 0.017 | 0.034 | 0.415 | 0.439 |
Biomass (Shoot) | −0.815 | −0.247 | − 0.047 | − 0.214 | − 0.068 | 0.011 |  | − 0.177 | − 0.030 | − 0.042 | − 0.568 | −0.815 |
Biomass (root) | −0.810 | − 0.191 | − 0.046 | −0.223 | − 0.061 | − 0.012 | 0.230 |  | −0.029 | − 0.040 | − 0.618 | − 0.809 |
Shoot length | −0.739 | − 0.040 | −0.049 | − 0.240 | − 0.049 | − 0.010 | 0.185 | − 0.138 |  | −0.047 | − 0.699 | −0.739 |
SPAD | −0.541 | −0.092 | − 0.046 | −0.156 | − 0.038 | −0.010 | 0.114 | −0.083 | − 0.021 |  | −0.449 | − 0.541 |