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Effects of pruning on heartwood formation in Scots pine trees

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Figure

Fig. 1. The average width of the five most recently formed growth rings. Discs were sampled in 1998 and taken from 1.5 m above the stump
Table 1. The amounts of sapwood and heartwood in treated and control trees at three different positions in the trees
Fig. 2. Relative heartwood area as a percentage of total area (A), and relative number of heartwood growth rings as a percentage of total number of annual rings (B), in discs from 1.5 m above the stump
Fig. 4. Relative heartwood area as a percentage of total area (A), and relative number of heartwood growth rings as a propor-tion of total number of annual rings (B), in discs with an area of ca

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