Which of the following does not support the cohesion- tension theory of xylem transport?
A) Following cutting of a petiole, the xylem sap withdraws from the cut edge toward the blade of the leaf.
B) Measurements using a root bomb and xylem pressure probe detect negative pressures in xylem tissue.
C) Following application of a respiration inhibitor to a plant, xylem transport decreases substantially.
D) Dendrograph measurements detect small daily changes in the diameter of tree trunks.
E) Pressure bomb measurements detect daily changes in the water potential of leaf tissue.
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