Table 5. Correlation coefficients (r) among the measured parameters.
| parameters | LDW | Fv/Fm | Ph | LNC | LSC | S/N |
|---|---|---|---|---|---|---|
| LDW | 1 | |||||
| Fv/Fm | 0.909** | 1 | ||||
| Ph | 0.704** | 0.577** | 1 | |||
| LNC | 0.698** | 0.636** | 0.671** | 1 | ||
| LSC | 0.432* | 0.618** | 0.704** | 0.552** | 1 | |
| S/N | −0.546** | −0.798** | −0.714** | −0.886** | −0.408* | 1 |
Note: LDW, leaf dry weight; Fv/Fm, the maximum quantum yield of PSII; Ph, photosynthetic CO2 assimilation; LNC, leaf nitrogen concentration; LSC, leaf sugar concentration; S/N, the sugar-to-nitrogen concentration ratio.
Probability levels are indicated by * and ** for 0.05, and 0.01, respectively.