Article Figures & Data
Figures
- Figure 1.
A diagram of a branch junction sample split along the medial longitudinal plane four months after branch removal. The visible area of discolored wood interior to the cambial dieback line (A1 to A2) was measured and correlated with branch aspect ratio. A large intrusion of discoloration (B) and discontinuous branch pith (C) are also shown.
- Figure 2.
The impact of aspect ratio on trunk discoloration [log10 discolored area (cm2) + trunk cross-section area (cm2)] that developed in the medial longitudinal plane of dissected branch junctions four months after branch removal.
- Figure 3.
The effect of visible branch collars on the amount of trunk discoloration [log10 discolored area (cm2) trunk cross-section area (cm2)] that developed four months after branch removal.
- Figure 4.
The impact of branch-trunk pith connections on the area of trunk discoloration [log10 discolored area (cm2) trunk cross section area (cm2)] that developed in the medial longitudinal plane of dissected branch junctions four months after branch removal.
Tables
- Table 1.
Aspect ratio categories were used to select red maple and live oak branch unions.
Aspect ratio category Aspect ratios* A 0.25-0.35 B 0.38-0.48 C 0.51-0.61 D 0.64-0.74 E 0.77-0.87 F 0.90-1.00 ↵* Aspect ratio = branch diameter -r trunk diameter. For each species of tree there were 10 trees X 6 ratio categories X 2 branches per category = 120 branches.
- Table 2.
Frequency of branches with outwardly visible branch collars versus branches having pith continuous with trunk pith below the branch union as observed in the medial longitudinal plane of branch unions.
Collar Pith connected No Yes Total Red maple No 61z
(76.3)y19
(23.7)80 Yes 34
(100.0)0
(0.0)34 Live oak No 41
(67.2)20
(32.8)61 Yes 49
(89.1)6
(10.9)55
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