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Lpr and ABA concentration of root exudates. Plants growing in hydroponics were detopped and exudates collected from the stumps at the indicated time intervals. A, JVr; B, exudate osmolarity; C, Lpr; D, ABA concentration in exudate. ABA was not determined at 3 to 6 h. Floating bars are lsd at 5% level, given separately for each time interval, n = 6.
