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Effect of phosphorus supply on temporal profiles of cell length (A), displacement velocity (B), and relative elongation rate (Re; C) of an individual epidermal cell from the time it enters the elongation-only zone. L. perenne plants were grown for 47 d at high (1 mm, •) and 61 d at low (0.02 mm, ○) phosphorus supply. Data are means of six plants (±se).
