Fig. 4.
Relationships of stem relative water content to δ2Hstem_CVD − δ2Hxylem offset in the ISS transpiration experiment (open dots) and to δ2Hstem_CVD - δ2Hreference offset in the rehydration experiment (closed dots). No significant difference was detected between the two fitted lines (P > 0.05 for comparisons in both slope and intercept).