F and P values from ANOVA for growth and leaf/needle morphology 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 | ||||||
| Height growth (cm) | ||||||
| 2003 | 9.20 | 0.005 | 0.01 | 0.919 | 1.74 | 0.196 |
| 2004 | 3.33 | 0.081 | 0.13 | 0.727 | 0.44 | 0.512 |
| Trunk growth (mm) | ||||||
| 2003 | 13.11 | <0.001 | 0.22 | 0.643 | 0.68 | 0.417 |
| 2004 | 2.96 | 0.098 | 0.42 | 0.521 | 0.26 | 0.615 |
| Leaf area (cm2) | ||||||
| 2003 (June 24) | 19.19 | <0.001 | 0.10 | 0.758 | 0.21 | 0.647 |
| 2004 (July 7) | 7.36 | 0.012 | 0.08 | 0.782 | 0.34 | 0.565 |
| Specific leaf mass (g/m2) | ||||||
| 2003 (June 24) | 15.92 | <0.001 | 0.13 | 0.716 | 0.16 | 0.688 |
| 2004 (July 7) | 1.05 | 0.314 | 5.12 | 0.032 | 0.13 | 0.723 |
| Austrian pine | ||||||
| Height growth (cm) | ||||||
| 2003 | 11.45 | 0.002 | 0.78 | 0.383 | 0.61 | 0.440 |
| 2004 | 31.56 | <0.001 | 0.52 | 0.474 | 0.32 | 0.576 |
| 2005 | 19.66 | <0.001 | 0.84 | 0.365 | 0.01 | 0.920 |
| Trunk growth (mm) | ||||||
| 2003 | 10.94 | 0.002 | 2.16 | 0.149 | 0.24 | 0.626 |
| 2004 | 5.29 | 0.027 | 1.13 | 0.294 | 0.07 | 0.795 |
| 2005 | 10.22 | 0.003 | 2.04 | 0.161 | 1.48 | 0.230 |
| Needle area (cm2) | ||||||
| 2004 (October 24) | 0.69 | 0.410 | 0.25 | 0.623 | 0.00 | 0.959 |
| 2005 (June 29) | 0.51 | 0.477 | 0.38 | 0.543 | 0.21 | 0.650 |
| Specific needle mass (g/m2) | ||||||
| 2004 (October 24) | 1.47 | 0.233 | 0.01 | 0.927 | 3.83 | 0.057 |
| 2005 (June 29) | 12.10 | 0.001 | 0.32 | 0.573 | 1.19 | 0.282 |