Shoot extension (cm) | A (μmol m−2 s−1) | E (mmol m−2 s−1) | WUE μmol CO2 /mmol H2O) | Chl (Unit SPAD) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
2006 | 2007 | 2006 | 2007 | 2006 | 2007 | 2006 | 2007 | 2006 | 2007 | |
Cultivar | ||||||||||
‘Summershade’ | 30.1b | 48.4c | 6.3c | 8.4 | 2.2 | 2.8 | 2.9 | 3.0 | 35.3c | 42.8 |
‘Deborah’ | 45.7a | 130.9a | 8.9a | 8.5 | 3.0 | 3.1 | 3.0 | 2.7 | 42.8a | 44.5 |
‘Emerald Queen’ | 23.7c | 95.9b | 7.6b | 8.8 | 2.5 | 2.8 | 3.0 | 3.1 | 39.3b | 43 |
P | ** | ** | ** | N.S. | ** | * | N.S. | N.S. | ** | N.S. |
Irrigation | ||||||||||
Irrigated | 32.4 | 83.0 | 7.9 | 8.9 | 2.8 | 3.1 | 2.8 | 2.9 | 39.8 | 43.9 |
Nonirrigated | 34.4 | 100.3 | 7.3 | 8.2 | 2.3 | 2.8 | 3.2 | 2.9 | 38.6 | 42.9 |
P | N.S. | ** | ** | N.S. | ** | ** | * | N.S. | N.S. | N.S. |
Species × Irrigation | ||||||||||
P | N.S. | N.S. | N.S. | N.S. | * | * | N.S. | N.S. | N.S. | N.S. |
Different letters within the same column indicate statistically differences among cultivars at P < 0.05 (*) or P < 0.01 (**), using Duncan’s MRT.