Mean environmental and physiological parameters for green ash trees grown on three sites in Lincoln, Nebraska on three dates in August and September, 1994.
| Site | Temperature (°C) | Vapor pressure deficit (kPa) | Net photosynthesis ( μmol/m2/s) | Leaf conductance (mmol/m2/s) | Transmission (mmol/m2/s) |
|---|---|---|---|---|---|
| Campus | 26.8 a | 1.57 a | 5.37 a | 172.8 a | 1.51 a |
| Large planter | 27.7 b | 1.85 b | 4.11 ab | 112.7 ab | 1.36 a |
| Small planter | 27.6 b | 1.89 b | 3.00 b | 79.9 b | 1.07 a |
Note: Means are averages of three measurement dates. Means within a column followed by the same letter are not significantly different at 0.05 level. Means separated by Tukey’s Studentized range test.