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Tracheid Length Variation in Conifers as Related to Distance from Pith

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A relationship between tracheid length and distance from pith was found in four coniferous trees. The relationship could be expressed mathematically for each tree without regard to age or level in the trunk, provided that the portion of the bole close to the ground was eliminated. The shortest tracheids were found near the pith; outward from the pith, tracheid length at first increased rapidly, then more slowly and with a tendency to level off. Tracheids near the tree base were shorter than those at higher levels at points equidistant from the pith. Springwood tracheids in white fir were found to be shorter than summerwood tracheids of the same annual ring.

Document Type: Journal Article

Affiliations: Professor of Wood Technology, New York State College of Forestry, Syracuse

Publication date: January 1, 1951

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

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