Erratum to: Use of a SPAD-502 meter to measure leaf chlorophyll concentration in Arabidopsis thaliana

Erratum to: Photosynth Res (2011) 107:209–214 DOI 10.1007/s11120-010-9606-0

Due to the omission of a scaling factor of 4 from the chlorophyll per leaf area calculations, all values with units of nmol/cm² were fourfold higher than they should have been. This affected the y-axis values in Figs. 1b, 2b, 3b (left side) and 4b (left side); the maximal y-axis values should be 30, 25, 15 and 35, respectively. Most importantly, the equation in Fig. 1b should be:

$$ {\text{y}}=0.0105 {\text{x}}^{2}+0.4119 {\text{x}}+0.3810. $$

None of the chlorophyll per fresh weight data are affected by this erratum, nor is the running text influenced in any way. All R ² values are unaffected.