Shoot growth at different magnetic fields. The percentage length and weight of the shoots from barley plants etiolated grown in the presence of EMF with respect to those of controls (normalized to 100%) grown under the same conditions but in the absence of an EMF. The left 3 bar groups summarize the data for the experiments with one culture exposed to EMF (BDC = 65 μT, f(BAC) = 50 Hz). The right 6 bar groups show the data from the gradient MF experiments under several field strengths from 55 to 75 μT. A decrease at BDC = 65 μT is seen, corresponding to ICR conditions of Ca2+.