Table 5. Correlations (r) among physical and chemical characteristics in mineral growing medium for cultivating eggplants, with hairy roots syndrome (RWS, n = 10).
| Humidity | pH | Conductivity | Ammonium-N | P | Ca | Mg | Na | Agrobacterium sp. CFU | |
|---|---|---|---|---|---|---|---|---|---|
| Conductivity | 0.949** (3) | ||||||||
| Nitrogen-N | −0.907** (2) | ||||||||
| Ammonium-N | 0.876** (2) | ||||||||
| P | 0.964** (3) | 0.960** (3) | 0.995** (2) | ||||||
| K | 0.887** (3) | −0.899** (2) | 0.893** (2) | ||||||
| Ca | −0.952** (2) | 0.958** (2) | 0.953** (2) | ||||||
| Mg | −0.905** (2) | 0.953** (2) | 0.990** (2) | 0.998*** (2) | 0.934** (2) | ||||
| Sulphate | 0.913** (3) | 0.912** (2) | 0.926** (3) | 0.974** (3) | |||||
| Na | −0.918** (2) | 0.955** (2) | 0.993** (2) | 0.939** (2) | |||||
| Chloride | 0.901** (2) | ||||||||
| Fe | −0.907** (2) | −0.898** (2) | |||||||
| Agrobacterium sp. CFU | −0.883** (2) | 0.995** (2) | 0.953** (2) 0.963** (3) | 0.934** (2) | 0.939** (2) | ||||
| Total CFU | −0.907** (2) | 0.983** (2) | 0.991** (2) 0.915** (3) | 0.991** (2) | 0.994** (2) | 0.971** (2) |
In parenthesis, the time point when the correlation was observed. ***P < 0.0001, **P < 0.05.