Douglas-fir wood quality studies Part II
โ
Harvey D. Erickson; Tsuneo Arima
๐
Article
๐
1974
๐
Springer
๐
English
โ 602 KB
The same material was used as in Part I of this study. Fibril angle decreased with age from over 30 degrees to 7 degrees at about age 30. Accelerated growth by fertilization and thinning at about 20 years caused a slight increase in angle but only for a few years. The semilog correlation with age wa