Average chlorophyll concentrations (mg(100 g)⁻¹) of chlorophyll. (A) Green leaf lettuce (GLL), (B) Romain lettuce (RL), (C) Head lettue (HL). The data shows the changes in average chlorophyll concentrations and standard deviation of 20 lettuces. *P<0.05, **P<0.01, and ***P<0.001 represent a significant difference compared with the control group.
Abbreviations: Total Chl, total chlorophyll; Chl a, chlorophyll a; Chl b, chlorophyll b; CTL, control; GF, general fertilizer; TF, test fertilizer.

Korean J Clin Lab Sci 2024;56:384-9 https://doi.org/10.15324/kjcls.2024.56.4.384

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