Year Time  of day, h
Site 1 Site 2
4–6 12–14 21–23 4–6 12–14 21–23
2007 11.2±0.5 30.2±2.7 18.8±1.4 10.9±0.6 22.1±1.7 13.2 ±1.7
2009 NA 3.3±0.3 5.8±0.6 NA 3.6±0.5 5.0±0.5
2010 15.0±1.4 20.7±3.3 20.3±4.4 10.0±2.3 15.7±2.7 9.3 ±1.5
Note: NA–not measured
Table 3: The content of malondialdehyde (MDA, μmol/g dry weight) in the leaves of Plantago media plants growing in open (S1) and shaded (S2) sites.