Tree Growth. Dendrology - study of trees Dendrochronology - study of tree rings. Tree Cross Section. Outer Bark : Protection, insulation. Inner Bark : “phloem”, carries food short lived - becomes bark/cork. Cambium Layer : cell division, annual ring added.
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Outer Bark: Protection, insulation
Inner Bark: “phloem”, carries food short lived - becomes bark/cork
Cambium Layer : cell division, annual ring added
Sapwood: “new wood”, carries water (xylem)
Heartwood: strength, support
This tree is 50 years old!
Measured at DBH - 4.5‘)
primary growth - growth upward
secondary growth - outward growth
Bark Primary Growth Gravitropism
Heartwood Secondary Growth Auxins
Sapwood Bundle Scar/Leaf Scar Cytokinins
Cambium Increment Borer Annual Ring
Pith Diameter Tape
Terminal Bud Dendrochronology
Lateral Bud Pruning
Bud Scale Scar Phototropism