Figure 2.

Evaluation of salt tolerance and Na⁺ uptake in hydroponic culture system. A, High salinity stress tolerance in hydroponic culture system. Three-week-old Arabidopsis and 4-week-old salt cress plants that were the same in size were exposed to 250 mm NaCl solution for 24, 48, and 96 h. B, Accumulation of NaCl in leaves of Arabidopsis and salt cress during high salt stress in hydroponic culture system. Three-week-old Arabidopsis and 4-week-old salt cress plants that were the same size were exposed to 250 mm NaCl solution for 2, 5, 10, and 24 h.