Developmental Trends of Black Spruce Fibre Attributes in Maturing Plantations

Figure 3

Fibre attribute variation as measured by the coefficient of variation by size quintile. Note: () the solid square denotes the mean value whereas the lower and upper whiskers denote minimum and maximum values, respectively, and , , , , , , , and are abbreviative notation for wood density, microfibril angle, modulus of elasticity, fibre coarseness, tracheid wall thickness, radial tracheid diameter, tangential tracheid diameter, and specific surface area, respectively.