Table 5. Pearson’s correlation matrix of vegetative growth and photosynthetic parameters across two years and three cultivars (n = 18) under each water irrigation rate.
| Parameters | 1.00 ETc | |||||
|---|---|---|---|---|---|---|
| GLN | GLA | TDW | Pn | Gs | E | |
| Number of green leaves per plant (GLN) | 1.00 | 0.92*** | 0.74** | 0.70* | 0.88** | -0.51 ns |
| Green leaf area per plant (GLA) | 1.00 | 0.78** | 0.80*** | 0.86** | -0.65 ns | |
| Total shoot dry weight per plant (TDW) | 1.00 | 0.66* | 0.77** | -0.47 ns | ||
| Photosynthetic rate (Pn) | 1.00 | 0.76** | -0.51 ns | |||
| Stomatal conductance (Gs) | 1.00 | -0.30 ns | ||||
| Transpiration rate (E) | 1.00 | |||||
| 0.75 ETc | ||||||
| Number of green leaves per plant (GLN) | 1.00 | 0.77** | 0.90*** | 0.89*** | 0.92*** | -0.52ns |
| Green leaf area per plant (GLA) | 1.00 | 0.78** | 0.74* | 0.68* | -0.65ns | |
| Total shoot dry weight per plant (TDW) | 1.00 | 0.89*** | 0.80** | -0.65ns | ||
| Photosynthetic rate (Pn) | 1.00 | 0.90*** | -0.34 ns | |||
| Stomatal conductance (Gs) | 1.00 | -0.33 ns | ||||
| Transpiration rate (E) | 1.00 | |||||
| 0.50 ETc | ||||||
| Number of green leaves per plant (GLN) | 1.00 | 0.94*** | 0.83** | 0.94*** | 0.81** | -0.69* |
| Green leaf area per plant (GLA) | 1.00 | 0.90*** | 0.98*** | 0.86*** | -0.77** | |
| Total shoot dry weight per plant (TDW) | 1.00 | 0.95*** | 0.91*** | -0.79** | ||
| Photosynthetic rate (Pn) | 1.00 | 0.91*** | -0.74* | |||
| Stomatal conductance (Gs) | 1.00 | -0.74* | ||||
| Transpiration rate (E) | 1.00 | |||||
* Significant at the .05 probability level.
** Significant at the .01 probability level.
*** Significant at the .001 probability level.
ns: not significant.