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Relationship between capacitance (C, nF) and fresh mass (M, g) of 16 whole root systems of different ages submerged with 5mm distance remaining between solution surface and plant electrode. Linear regression: C = (115±12) × M + (221±24) (mean ± SE, R 2 = 0.869, P < 0.0001). Data represent the mean ± SD of three repeated measurements.
