Table 4.
Two-way ANOVAs for the effect of branch location (lateral or apical) and its reproductive status (with or without cone) on branch growth, diameter, specific dry weight, P and N concentration of the branch, and P and N concentration of the needles (n = 40)
| Source | Sum of squares | d.f. | Mean squares | F | P |
|---|---|---|---|---|---|
| Branch growth | |||||
| Corrected model | 4385·369 | 3 | 1461·790 | 42·846 | <0·001 |
| Location | 4378·556 | 1 | 4378·556 | 128·338 | <0·001 |
| Cone | 0·006 | 1 | 0·006 | 0·000 | 0·989 |
| Location × cone | 6·806 | 1 | 6·806 | 0·199 | 0·658 |
| R2 = 0·78 | |||||
| Branch diameter | |||||
| Corrected model | 0·293 | 3 | 0·10 | 13·42 | <0·001 |
| Location | 0·289 | 1 | 0·29 | 39·71 | <0·001 |
| Cone | 0·004 | 1 | 0·00 | 0·55 | 0·463 |
| Location × cone | 0 | 1 | 0·00 | 0·00 | 1·000 |
| R2 = 0·53 | |||||
| Branch specific dry weight | |||||
| Corrected model | 0·252 | 3 | 0·08 | 1·25 | 0·306 |
| Location | 0·229 | 1 | 0·23 | 3·42 | 0·073 |
| Cone | 0·01 | 1 | 0·01 | 0·22 | 0·643 |
| Location × cone | <0·001 | 1 | 0·01 | 0·12 | 0·733 |
| R2 = 0·09 | |||||
| Branch P | |||||
| Corrected model | 5·337 | 3 | 1·779 | 11·771 | <0·001 |
| Location | 4·452 | 1 | 4·452 | 29·460 | <0·001 |
| Cone | 0·305 | 1 | 0·305 | 2·018 | 0·164 |
| Location × cone | 0·580 | 1 | 0·580 | 3·835 | 0·058 |
| R2 = 0·50 | |||||
| Branch N | |||||
| Corrected model | 158·746 | 3 | 52·915 | 16·989 | <0·001 |
| Location | 92·879 | 1 | 92·879 | 29·820 | <0·001 |
| Cone | 22·181 | 1 | 22·181 | 7·121 | 0·011 |
| Location × cone | 43·686 | 1 | 43·686 | 14·026 | 0·001 |
| R2 = 0·59 | |||||
| Needle P | |||||
| Corrected model | 2·103 | 3 | 0·701 | 3·898 | 0·016 |
| Location | 1·908 | 1 | 1·908 | 10·610 | 0·002 |
| Cone | 0·124 | 1 | 0·124 | 0·691 | 0·411 |
| Location × cone | 0·071 | 1 | 0·071 | 0·393 | 0·535 |
| R2 = 0·25 | |||||
| Needle N | |||||
| Corrected model | 11·588 | 3 | 3·863 | 5·628 | 0·003 |
| Location | 11·213 | 1 | 11·213 | 16·339 | <0·001 |
| Cone | 0·013 | 1 | 0·013 | 0·018 | 0·893 |
| Location × cone | 0·362 | 1 | 0·362 | 0·528 | 0·472 |
| R2 = 0·32 | |||||