Relationships in Black Walnut Heartwood Between Color and Other Physical and Anatomical Characteristics

Authors

  • Charlotte H. Hiller
  • Frank Freese
  • Diana M. Smith

Abstract

Relationships in black walnut heartwood between color and specific gravity, extractive content, and anatomical characteristics were explored. Per cent luminance, color brightness, was significantly related to extractive content and to the combination of extractive content and some of the measures of wood density. It was found that trees from Indiana compared with those from Missouri differed significantly in the following wood characteristics: lower extractive content, higher proportion of fibrous tissue with thinner cell walls, and smaller vessel lumens.

References

Aufsess, H. von, H. von Pechmann, and E. Graessle. 1968. Fluoreszenz-mikro-skopische Beobachtungen an pilzbefallenem Holz. (Fluorescence microscopical observation on wood attacked by fungi.) Holz Roh-Werkst. 26(2): 50-61.nBoyce, S. G., M. Kaeiser, and C. F. Bey. 1970. Variation of some wood features in five black walnut trees. Forest Sci. 16(1): 95-100.nFunk, D. T. 1966. Annotated bibliography of walnut and related species. USDA, Forest Serv. Res. Pap. NC-9. North Central Forest Exp. Sta., St. Paul, Minn.nHennig, A. 1958. Kritische Betrachtungen zur Volumen- und Oberflächenmessung in der Mikroskopie. Zeiss-Werkzeitschr. 6: 78-86.nNelson, N. D., R. R. Maeglin, and H. E. Wahlgren. 1969. Relationship of black walnut wood color to soil properties and site. Wood and Fiber 1(1): 29-37.nSmith, D. M. 1967. Microscopic methods for determining cross-sectional cell dimensions. USDA, Forest Serv. Res. Pap. FPL-79, Forest Prod. Lab., Madison, Wis.nTechnical Association of the Pulp and Paper Industry (TAPPI). 1959. Standard T 12 m-59, Preparation of extractive-free wood.n

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Published

2007-06-05

Issue

Number 1 / Spring 1972

Section

Research Contributions

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