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Tree Growth

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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Tree Growth

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  1. Tree Growth • Dendrology-study of trees • Dendrochronology-study of tree rings

  2. Tree Cross Section

  3. 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

  4. Spring Cells This tree is 50 years old! Summer Cells

  5. Diameter Tape Measured at DBH - 4.5‘)

  6. Increment Borer Core sample

  7. Twig Diagram primary growth - growth upward secondary growth - outward growth

  8. Terms To Know Bark Primary Growth Gravitropism Heartwood Secondary Growth Auxins Sapwood Bundle Scar/Leaf Scar Cytokinins Cambium Increment Borer Annual Ring Pith Diameter Tape Xylem DBH Phloem Dendrology Terminal Bud Dendrochronology Lateral Bud Pruning Lenticel Grafting Bud Scale Scar Phototropism

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