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Figure 1

From: Nutritional quality, mineral and antioxidant content in lettuce affected by interaction of light intensity and nutrient solution concentration

Figure 1

Soluble protein (A), nitrate (B), vitamin C (C), soluble sugar (D) and free amino acid (E) content regulated by different light intensity × NSC. Different letters mark in all figures indicated significant difference (P ≤ 0.05, Tukey’s test). Significant differences among the treatments were determined by SPSS 17.0 for ANOVA.

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