Table 1.
Effects of age (juvenile and mature), latitude, sampled season (growing season: Aug, 2014; and dormant season: Dec, 2014) and their interactions on NSCs, nutrients over tissues revealed by linear mixed effects models with individuals as random factors.
| Source of variation | Soluble sugar |
Starch |
NSC |
SS |
Nitrogen |
Phosphorus |
N:P |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| df | F | P | F | P | F | P | F | P | F | P | F | P | F | P | |
| Leaf | |||||||||||||||
| Age | 1 | 9.705 | 0.004 | 1.526 | 0.227 | 10.683 | 0.003 | 7.415 | 0.011 | 1.449 | 0.232 | 10.571 | 0.003 | 7.447 | 0.011 |
| Latitude | 6 | 4.747 | 0.002 | 5.247 | 0.001 | 5.973 | 0.000 | 3.241 | 0.015 | 5.524 | 0.001 | 3.228 | 0.015 | 6.666 | 0.000 |
| Age × latitude | 6 | 0.714 | 0.642 | 1.873 | 0.121 | 0.281 | 0.941 | 1.136 | 0.367 | 4.135 | 0.005 | 2.174 | 0.076 | 2.820 | 0.028 |
| Branch | |||||||||||||||
| Age | 1 | 3.042 | 0.087 | 4.820 | 0.032 | 0.094 | 0.761 | 2.161 | 0.147 | 0.094 | 0.761 | 118.33 | 0.000 | 35.730 | 0.000 |
| Latitude | 6 | 20.027 | 0.000 | 18.205 | 0.000 | 7.386 | 0.000 | 24.459 | 0.000 | 6.468 | 0.000 | 14.958 | 0.000 | 16.909 | 0.000 |
| Season | 1 | 455.16 | 0.000 | 175.37 | 0.000 | 607.45 | 0.000 | 2.022 | 0.161 | 4.920 | 0.031 | 98.364 | 0.000 | 15.422 | 0.000 |
| Age × latitude | 6 | 1.111 | 0.368 | 2.507 | 0.032 | 1.464 | 0.207 | 1.325 | 0.261 | 1.255 | 0.293 | 12.790 | 0.000 | 5.282 | 0.000 |
| Age × season | 1 | 3.996 | 0.050 | 15.175 | 0.000 | 0.136 | 0.714 | 9.841 | 0.003 | 3.528 | 0.066 | 90.777 | 0.010 | 16.029 | 0.000 |
| Latitude × season | 6 | 6.261 | 0.000 | 10.860 | 0.000 | 5.602 | 0.000 | 10.797 | 0.000 | 1.528 | 0.186 | 10.381 | 0.000 | 2.563 | 0.029 |
| Age × latitude × season | 6 | 0.549 | 0.769 | 0.768 | 0.598 | 0.567 | 0.755 | 0.166 | 0.985 | 0.882 | 0.514 | 11.385 | 0.000 | 3.907 | 0.002 |
| Root | |||||||||||||||
| Age | 1 | 0.015 | 0.903 | 1.378 | 0.246 | 1.093 | 0.301 | 3.741 | 0.059 | 4.051 | 0.049 | 47.490 | 0.000 | 93.730 | 0.000 |
| Latitude | 6 | 10.473 | 0.000 | 2.674 | 0.025 | 8.357 | 0.000 | 3.331 | 0.008 | 6.754 | 0.000 | 2.342 | 0.044 | 13.648 | 0.000 |
| Season | 1 | 347.83 | 0.000 | 34.088 | 0.000 | 263.20 | 0.000 | 6.886 | 0.011 | 16.685 | 0.000 | 28.173 | 0.000 | 0.183 | 0.670 |
| Age × latitude | 6 | 1.374 | 0.243 | 4.389 | 0.001 | 2.646 | 0.026 | 4.572 | 0.001 | 0.534 | 0.780 | 2.990 | 0.013 | 4.253 | 0.001 |
| Age × season | 1 | 69.450 | 0.000 | 5.537 | 0.022 | 49.532 | 0.000 | 7.979 | 0.007 | 2.950 | 0.091 | 23.975 | 0.000 | 34.849 | 0.000 |
| Latitude × season | 6 | 5.011 | 0.000 | 4.091 | 0.002 | 5.023 | 0.000 | 3.310 | 0.008 | 1.297 | 0.274 | 2.722 | 0.022 | 3.571 | 0.005 |
| Age × latitude × season | 6 | 1.489 | 0.219 | 2.309 | 0.070 | 1.271 | 0.293 | 1.556 | 0.200 | 1.026 | 0.418 | 2.057 | 0.073 | 1.500 | 0.196 |
Significance levels of less than 0.05 are identified in bold.