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. 2004 Sep 16;94(5):725–732. doi: 10.1093/aob/mch197

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Annals of Botany 94/5, © Annals of Botany Company 2004; all rights reserved

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Fig. 1. — The effect of shading one leaf by a spectrally neutral filter or a tobacco leaf on parameters pertaining to between-leaf resource partitioning and within-leaf chloroplast organization. Both shading devices had the same PAR transmittance. Six species were compared: Phaseolus vulgaris (Pv), Lysimachia vulgaris (Lv), Hedera helix (Hh), Ficus benjamina (Fb), Brachypodium pinnatum (Bp) and Carex acutiformis (Ca). Parameters (means ± s.e.) are: leaf mass per area (LMA), nitrogen per leaf mass (N_LM), nitrogen per leaf area (N_LA), photosynthetic capacity per area (A_max) and per chlorophyll (A_max/chl), total chlorophyll per area and chlorophyll a/b ratio. The upper row of statistical notations refers to the results of a one-way ANOVA on the three treatment means per species. The lower row refers to the significance of the differences between the two shading treatments based on a Student's t-test performed on data expressed relative to unshaded control leaves on the same plant. ^*P < 0·05; ^**P < 0·01; ^***P < 0·001; n.s., not significant.