Post on 22-Feb-2016
description
Tree GrowthDendrology - study of treesDendrochronology - study of tree rings
Tree Cross Section
Outer Bark: Protection, insulation
Inner Bark: phloem, carries food short lived - becomes bark/corkCambium Layer : cell division, annual ring addedSapwood: new wood, carries water (xylem)
Heartwood: strength, support
Spring CellsSummer CellsThis tree is 50 years old!
Diameter TapeMeasured at DBH - 4.5)
Increment BorerCore sample
Twig Diagramprimary growth - growth upwardsecondary growth - outward growth
Terms To KnowBarkPrimary GrowthGravitropismHeartwood Secondary GrowthAuxinsSapwood Bundle Scar/Leaf ScarCytokininsCambium Increment Borer Annual RingPith Diameter TapeXylemDBHPhloemDendrologyTerminal BudDendrochronologyLateral BudPruningLenticelGraftingBud Scale ScarPhototropism