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Influence of stele area on the relative kr for simulated monocot anatomies. The colors represent different levels of hydrophobic barrier development. 1: Endodermal Casparian strip (blue); 2: Endodermal suberization (red); 3: Endodermis suberization and exodermal Casparian strip (green). The cross sections at the bottom of the figure, from left to right, show examples of roots with 0.3, 0.4, and 0.5 mm stele diameter.
