Table 1. Effects (F-value) of cut, age, organ and their interactions on the contents (mg/kg) of Cu, Fe, Mn and Zn in lucerne.
| Treatment | df | Cu | Fe | Mn | Zn |
|---|---|---|---|---|---|
| Cut | 2 | 41.793 (P < 0.001) | 29.133 (P < 0.001) | 52.622 (P < 0.001) | 45.489 (P < 0.001) |
| Age | 4 | 30.411 (P < 0.001) | 3.198 (P = 0.05) | 4.819 (P = 0.002) | 4.577 (P = 0.002) |
| Organ | 2 | 9.109 (P < 0.001) | 27.023 (P < 0.001) | 209.250 (P < 0.001) | 30.605 (P < 0.001) |
| Cut × Age | 7 | 88.180 (P < 0.001) | 3.278 (P = 0.004) | 2.921 (P = 0.009) | 6.715 (P < 0.001) |
| Cut × Organ | 4 | 9.132 (P < 0.001) | 3.805 (P = 0.007) | 8.724 (P < 0.001) | 0.807 (P = 0.524) |
| Age × Organ | 8 | 1.340 (P = 0.235) | 3.703 (P = 0.001) | 1.901 (P = 0.070) | 3.090 (P = 0.004) |
| Cut × Age × Organ | 14 | 2.492 (P = 0.005) | 2.660 (P = 0.003) | 2.042 (P = 0.024) | 1.985 (P = 0.029) |
Note:
F-values (P-values) were shown as the results. It was determined by multivariate analysis of variance. The significant difference was at P < 0.05.