Figure 1 | Scientific Reports

Figure 1

From: Elevated light intensity compensates for nitrogen deficiency during chrysanthemum growth by improving water and nitrogen use efficiency

Figure 1

Quantum yield of PSII (FV/FM) (A), and performance index per absorbed light (PIABS) (B) of young (Y) and old (O) leaves of chrysanthemum plants grown under different light intensits (75, 150, 300, and 600 µmol m−2 s−1) and nitrogen (N) concentrations (5, 10, and 15 mM N) at 70 days of cultivation. Vertical bars are means ± SD. Within each graph, interactive effects of light intensity and nitrogen concentration are shown. Different letters (a–d) denote a significant difference between treaments (P < 0.05).

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