Technical Note: Anatomical Variability within a Loblolly Pine Tree under Thinning Management

Density, ring width, and cell structure were analyzed at different sampling heights and growth ring numbers in a loblolly pine (Pinus taeda) tree under thinning management. Density, latewood percentage, cell length, and latewood cell wall thickness increased with growth ring number. Tracheid length, latewood tangential cell wall thickness, and earlywood radial cell diameter increased with height. Density, ring width, latewood percentage, cell length, and latewood cell wall thickness increased after thinning treatment. With more information on anatomical properties associated with growth ring number, height, and thinning treatment, wood resources can be more efficiently oriented toward end-use products