Appendix C.
Results of preliminary MANOV test for the main effects tree age, site, year and canopy position alone and their interaction on SNC incidence in study areas in western Oregon. Only one- and two-year-old needles were used for statistical analysis because three- and older needles had limited data for testing covariance.
| F-value | p-value | |||
|---|---|---|---|---|
| Needle age =1 | (Intercept) | 191.6 | < 0.001 | *** |
| Tree age | 81.4 | < 0.001 | *** | |
| Site | 55.3 | < 0.001 | *** | |
| Tree age × Site | 18.8 | < 0.001 | *** | |
| Year | 1.1 | 0.307 | ||
| Tree age × Year | 0.2 | 0.654 | ||
| Site × Year | 6.7 | 0.002 | ** | |
| Tree age × Site × Year | 1.1 | 0.375 | ||
| Canopy | 8.3 | 0.003 | ** | |
| Tree age × Canopy | 3.6 | 0.048 | * | |
| Site × Canopy | 4.3 | 0.001 | *** | |
| Tree age × Site × Canopy | 3.1 | 0.008 | ** | |
| Year × Canopy | 0.0 | 0.977 | ||
| Tree age × Year × Canopy | 2.4 | 0.120 | ||
| Site × Year × Canopy | 0.7 | 0.722 | ||
| Tree age × Site × Year × Canopy | 1.4 | 0.220 | ||
| NeedleAge =2 | (Intercept) | 1320.0 | < 0.001 | *** |
| Tree age | 403.5 | < 0.001 | *** | |
| Site | 47.6 | < 0.001 | *** | |
| Tree age × Site | 24.1 | < 0.001 | *** | |
| Year | 23.7 | < 0.001 | *** | |
| Tree age × Year | 7.9 | 0.011 | * | |
| Site × Year | 6.3 | 0.002 | ** | |
| Tree age × Site × Year | 4.1 | 0.015 | * | |
| Canopy | 5.2 | 0.017 | * | |
| Tree age × Canopy | 0.7 | 0.494 | ||
| Site × Canopy | 1.4 | 0.234 | ||
| Tree age × Site × Canopy | 1.6 | 0.161 | ||
| Year × Canopy | 0.8 | 0.460 | ||
| Tree age × Year × Canopy | 1.8 | 0.193 | ||
| Site × Year × Canopy | 0.7 | 0.666 | ||
| Tree age × Site × Year × Canopy | 0.7 | 0.678 |