Value Action of Bordered Pits in Conifers |
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Authors: | GREGORY, S. C. PETTY, J. A. |
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Abstract: | The pressure needed to displace a bordered pit membrane to seala pit aperture is compared with that needed to force an air-sapmeniscus through the largest pit membrane pore. The former issmaller for early-wood pits, which thus prevent spread of airbubbles in the transpiration stream. |
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