Fig. 2

Total soluble protein (A), Chl a content (B), Chl b content (C), Chl content (D) and Chl a/b (E) in relation to N content (1.30, 1.32, 1.65, 1.99, 2.15 and 2.79 g m⁻²) in tea leaves. The data were examined using a LSD test. Each point is mean ± standard error for the leaf N content (horizontal, n = 5) and the dependent variable (vertical, n = 4). Different letters above or below standard error bars indicate significant difference at P < 0.05