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Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species

Publication ,  Journal Article
Phillips, N; Oren, R; Zimmermann, R
Published in: Plant, Cell and Environment
January 1, 1996

We investigated radial patterns of sap flux density and wood properties in the sapwood of young loblolly pine (Pinus taeda L.), mature white oak (Quercus alba L.) and sweetgum (Liquidambar styraciflua L.), which represent three major classes of wood anatomy: non-porous (coniferous), ring-porous and diffuse-porous. Radial measurements of xylem sap flux density were made in sections of xylem extending to 20 mm and 20-40 mm from the cambium. These measurements were compared with measurements of the relative water content (R(s)) and sapwood specific gravity (ρ(f)) of corresponding radial sections. In both hardwood species, sap flow differences were rarely significant between the two depth intervals. In pine, a 59% reduction in daily sap flux density from outer to inner sapwood was found. This could not be accounted for by a 3% drop in R(s); rather, an accompanying 9% reduction in ρ(f) indicated a transition between the depth intervals from mature to juvenile sapwood, and is the probable cause of the lower flux rate in the inner xylem of pine.

Duke Scholars

Published In

Plant, Cell and Environment

DOI

ISSN

0140-7791

Publication Date

January 1, 1996

Volume

19

Issue

8

Start / End Page

983 / 990

Related Subject Headings

  • Plant Biology & Botany
  • 3108 Plant biology
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences
 

Citation

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Phillips, N., Oren, R., & Zimmermann, R. (1996). Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species. Plant, Cell and Environment, 19(8), 983–990. https://doi.org/10.1111/j.1365-3040.1996.tb00463.x
Phillips, N., R. Oren, and R. Zimmermann. “Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species.” Plant, Cell and Environment 19, no. 8 (January 1, 1996): 983–90. https://doi.org/10.1111/j.1365-3040.1996.tb00463.x.
Phillips N, Oren R, Zimmermann R. Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species. Plant, Cell and Environment. 1996 Jan 1;19(8):983–90.
Phillips, N., et al. “Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species.” Plant, Cell and Environment, vol. 19, no. 8, Jan. 1996, pp. 983–90. Scopus, doi:10.1111/j.1365-3040.1996.tb00463.x.
Phillips N, Oren R, Zimmermann R. Radial patterns of xylem sap flow in non-, diffuse- and ring-porous tree species. Plant, Cell and Environment. 1996 Jan 1;19(8):983–990.
Journal cover image

Published In

Plant, Cell and Environment

DOI

ISSN

0140-7791

Publication Date

January 1, 1996

Volume

19

Issue

8

Start / End Page

983 / 990

Related Subject Headings

  • Plant Biology & Botany
  • 3108 Plant biology
  • 07 Agricultural and Veterinary Sciences
  • 06 Biological Sciences