Fig. 9From: Measuring xylem hydraulic vulnerability for long-vessel species: an improved methodology with the flow centrifugation techniqueRelation between minimum measurable flow and diameter (mm) at a pressure of − 0.8 MPa for different rotor sizes. Note that this relationship is dependent on the geometry of the reservoir mainly. For comparison, typical minimal flow achieved with the gravimetric method by a 0.0001 g precision balance is plotted (discontinue line). The flow measured by the balance is not dependent on the diameter of the sample, but on the resolution of the balanceBack to article page