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Filtering by: Creator Jones, I. R. Contributor Forest Products Laboratory (U.S.) Decade 1950-1959

Relationship Between Specific Gravity and Percentage of Summerwood in Wide-Ringed, Second-Growth Douglas-Fir

Creator:

Smith, Diana M.

Abstract:

For the sample of wide-ringed Douglas-fir discussed in this report, the relationship between specific gravity and percentage of summerwood is linear over a range of 16 to 60 percent summerwood content of the annual ring. The specific gravity of the summerwood and springwood portions of 96 dissected annual rings is...

Resource Type:

Technical Report

Full Text:

freedom r ::: 0. 267 for 90 degrees of freedom 0. 01 Report No. 2045 70 I 60 I 50