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    Author(s): C.W. McMillin
    Date: 1973
    Source: Wood Science and Technology 7(251-255
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (592 KB)

    Description

    Fibril angles were greater for earlywood (avg. 33.4°) than for latewood tracheida (avg. 26.9°). For earlywood, fibril angle did not differ between growth rates when the specific gravity was low (avg. 33.3°). When the specific gravity was high, wood of fast growth had a higher fibril angle (avg. 35.1.°) than wood of slow growth (avg. 32.0°). No differences were detected between core, middle, and outer wood. In latewood tracheida, fibril angles were greater in corewood (avg. 28.0°) than in middle or outer wood (avg. 26.3°). For whole wood (a weighted average of earlywood and latewood), fibril angle averaged 30.7° and was greater in corewood (avg. 32.2°) than in middle or outer wood (avg. 29.9°).

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    Citation

    McMillin, C.W. 1973. Fibril angle of loblolly pine wood as related to specific gravity, growth rate, and distance from pith. Wood Science and Technology 7(251-255

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