Lack of vulnerability segmentation in four angiosperm tree species: evidence from direct X-ray microtomography observation

Table 1 Stem water potential inducing 50% loss of xylem conductivity (P₅₀, MPa) for petiole and stem of three species

Numbers in brackets indicate the upper and lower bound of 95% confidence interval. P₅₀ of petioles are estimated by vessel counting, while P₅₀ of stem are shown as values based on either vessel counting (P_50VC) or theoretical conductivity (P_50TK). Note that missing upper bound of confidence interval of means values were unable to be estimated precisely due to insufficient datapoints at more negative water potentials

ISSN: 1297-966X