Fig. 1From: Relationship between the xylem maturation process based on radial variations in wood properties and radial growth increments of stems in a fast-growing tree species, Liriodendron tulipiferaChanges in estimated stem diameter and radial growth rate in relation to cambial age. Note: Circles and solid line in the upper figure represent original values of estimated stem diameter at 1.3 m above the ground and regression curve based on the fixed-effect parameters of the selected model (Table 4). Solid and dashed lines in the lower figure indicate CAI and MAI based on the selected model (Model a-1 in Table 2) with only fixed-effect parameters. Solid and dashed lines in the vertical direction of both figures indicate cambial age showing maximum CAI (4.9 years) and MAI (7.4 years)Back to article page