Fig. 5.

Trolox equivalent antioxidant capacity and total phenolics concentration of the leaves of 8-week-old hydroponically grown Crambe maritima plants with 20 d of salt spray or 40 d of root-zone salinity ranging from 0 to 300 mm NaCl. Values are means ± s.e. with n = 4. Different letters indicate a significant difference at P < 0·05 (Tukey's test).