Table 1.
Range of canopy and air temperature difference (CAD), leaf water content (LWC) chlorophyll fluorescence (Fv/Fm), and wilting for 179 diverse perennial ryegrass accessions under control (C) and drought (D) conditions.
| CAD (°C) | Fv/Fm | LWC (g g–1) | Wilting | ||||
|---|---|---|---|---|---|---|---|
| C | D | C | D | C | D | D | |
| Minimum | –2.67a | 0.53 | 0.746 | 0.707 | 2.76 | 1.80 | 2.7 |
| Maximum | 2.08 | 6.53 | 0.826 | 0.836 | 6.17 | 3.93 | 8.0 |
| Mean | –1.08 | 2.75 | 0.808 | 0.798 | 4.18 | 2.57 | 4.6 |
| SDb | 0.92 | 0.99 | 0.010 | 0.016 | 0.53 | 0.32 | 0.94 |
a Data summarized across three locations for 2009 and 2010.
b Standard deviation.