F and P values from ANOVA for photosynthesis (μmol CO2 • m−2 • s−1) of paper birch (Betula pendula) and Austrian pine (Pinus nigra), in response to paclobutrazol and fertilization applied alone or in combination.
| Source of variation | ||||||
|---|---|---|---|---|---|---|
| Paclobutrazol (P) | Fertilization (F) | Interaction P × F | ||||
| F-value | P-value | F-value | P-value | F-value | P-value | |
| Paper birch | ||||||
| 2003 (June 25) | 1.81 | 0.186 | 0.00 | 0.974 | 0.17 | 0.679 |
| 2003 (July 25) | 3.49 | 0.070 | 0.86 | 0.359 | 0.56 | 0.458 |
| 2003 (August 14) | 4.21 | 0.047 | 0.34 | 0.564 | 1.12 | 0.296 |
| 2004 (July 21) | 0.00 | 0.990 | 0.23 | 0.634 | 0.44 | 0.515 |
| Austrian pine | ||||||
| 2004 (August 24) | 0.63 | 0.434 | 1.17 | 0.287 | 2.34 | 0.134 |