Primary versus Secondary Growth. Origins of Primary Growth: Apical and Primary Meristems.

Primary versus Secondary Growth

Origins of Primary Growth:Apical and Primary Meristems

Origins of Secondary Growth:Lateral Meristems

Vascular Cambium Activity

Relationship between Primary and Secondary Growth (a)

Relationship between Primary and Secondary Growth (b)

Relationship between Primary and Secondary Growth (c)

Relationship between Primary and Secondary Growth (d)

Relationship between Primary and Secondary Growth (e)

WOOD THREE WAY VIEWS

TRANSVERSE VIEW

RADIAL VIEW

TANGENTIAL VIEW

GYMNOSPERM WOOD(INCLUDING PINE)

Gymnosperm Wood

Bordered Pits

RESIN DUCTS

Three-Way Views

Gymnosperm Radial Cut

Gymnosperm Tangential Wood

Gymnosperm Transverse Wood

Gymnosperm Annual Rings

Gymnosperm Heartwood versus Sapwood

ANGIOSPERMS (INCLUDING OAKS AND MAPLES)

VESSELS AND TRACHEIDS

DIFFUSE POROUS VS. RING POROUS

OAKMAPLE

Three-Way Views

Angiosperm Tangential Cut

Angiosperm Radial Cut

Angiosperm Transverse Cut

Angiosperm Annual Rings

Angiosperm Heartwood versus Sapwood

SOFTWOOD versus HARDWOOD

(= Gymnosperm Wood versus Angiosperm Wood)

Primary versus Secondary Growth. Origins of Primary Growth: Apical and Primary Meristems.

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Transcript of Primary versus Secondary Growth. Origins of Primary Growth: Apical and Primary Meristems.

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