Figure 8

Long-term development of the light-grown barley plants after Ca²⁺ ICR exposure. Barley plants after 10 weeks greenhouse cultivation (potted on soil in one tray, daylight with natural day-night cycle, moderate temperature around 21°C). Plants were initially grown 5 d in the dark: (1, left) exposed to Ca²⁺ ICR condition (B_DC = 65 μT, f(B_AC) = 50 Hz), (2, middle) in a shielding box, (3, right) was a control culture of plants grown under the same conditions but in the absence of Ca²⁺ ICR. Even after this long time the retardation of the Ca²⁺ ICR culture (1) was still visible.