highly significantp < 0.001
Relative height had a significant effect on OmegaE ( F = 3.26, p = 0.040), and highly significant effects on all other indicators (e.g., for PPFD: F = 88.78, p < 0.001); the other indicators were also highly significant (for example, PPFD: F = 88.75, p < 0.001); however, the interaction effect between the two was highly significant only for PPFD ( F = 10.15, p < 0.001) and PAR ( F = 10.15, p < 0.001) ( Table 4 ).