PT Journal AU Wegner, LH Zimmermann, U TI Hydraulic conductance and K⁺ transport into the xylem depend on radial volume flow, rather than on xylem pressure, in roots of intact, transpiring maize seedlings SO New Phytologist PY 2009 BP 361 EP 73 VL 181 DI 10.1111/j.1469-8137.2008.02662.x LA english ER