Table II
Results of a one-way Ancova with stage of architectural development (ASD = 3) as main factor and relative irradiance (DPFrel, %) as covariant for Tachigali melinonii. F -values, levels of significance (P) and coefficients of determination (r2) of the model are given. DPFrel, H, D, LMA, Na and Jmax a were log-transformed prior to analysis. Cm and thickness were analyzed with a separate slope model. Vcmax m, Jmax m and Rd m were not linearly correlated with DPFreland thus they were analyzed with a one way ANOVA. Significance levels: ns, P > 0.05;*, P < 0.05; **, P < 0.01 and ***, P < 0.001. The corresponding adjusted means at a 26% DPFrel are displayed in Figure and numerical values are provided in the on-line only Appendix 2.
| ASD | DPF rel | DPFrel × ASD | model | ||
|---|---|---|---|---|---|
| F | F | F | r2 | ||
| H | 226*** | _ | 15.9*** | 0.96 | |
| D | 72.6*** | _ | 23.0*** | 0.94 | |
| Structural traits | |||||
| LMA | 26.5*** | 183*** | _ | 0.88 | |
| thickness | 8.63*** | _ | 121*** | 0.55 | |
| density | 19*** | 90.9*** | _ | 0.80 | |
| Na | 76.4*** | 20.3*** | _ | 0.84 | |
| Nm | 38.6*** | 102*** | _ | 0.77 | |
| Cm | 18.3*** | _ | 9.35*** | 0.75 | |
| Chl a | 24.3*** | 52.1*** | _ | 0.65 | |
| Chl m | 1.9 ns | 189*** | _ | 0.82 | |
| Physiological traits | |||||
| Vcmax a | 49.7*** | 98*** | _ | 0.86 | |
| Jmax a | 40.2*** | 176*** | _ | 0.89 | |
| Rd a | 3.44* | 18.1*** | _ | 0.45 | |
| Vcmax m | 6.85** | ns | _ | 0.24 | |
| Jmax m | 5.40** | ns | _ | 0.20 | |
| Rd m | 0.62 ns | ns | _ | 0.03 | |
| Jmax / Vcmax | 1.15 ns | 7.76** | _ | 0.16 | |
| Vcmax /N | 1.29 ns | 22.4*** | _ | 0.34 | |
| Jmax/ N | 2.76 ns | 49.7*** | _ | 0.54 | |
| Chl/ N | 9.06** | _ | 56.3*** | 0.85 | |