ล าต้น ( STEM · Dicot stem anatomy: vascular bundle ©1996 Norton Presentation Maker W....
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ลาต้น (STEM)
Transcript of ล าต้น ( STEM · Dicot stem anatomy: vascular bundle ©1996 Norton Presentation Maker W....
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ล าตน (STEM)
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ล าตนพชใบเลยงเดยว
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ล าตนพชใบเลยงเดยว
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มดทอล าเลยงในล าตนพชใบเลยงเดยว
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พชใบเลยงเดยวไมมการเตบโตทตยภม
เพราะล าตนไมมเนอเยอเจรญดานขาง (ไมม Vascular cambium)
ยกเวนพชเหลาน ???
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จนทนผา
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หมากผหมากเมย
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ปาลม
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ไผ
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ขาวโพด
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ล าตนพชใบเลยงค
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มดทอล าเลยงในล าตนพชใบเลยงค
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ค าถาม
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พชใบเลยงคมการเตบโตทตยภม
เพราะล าตนมเนอเยอเจรญดานขาง (Vascular cambium)
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Annual ring - วงป
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บอกไดไหมอายกป
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Cork
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Cork
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Cork cells
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Cork cells ใชท าจกปดขวดไวน
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ตวอยางขอสอบชววทยา
- เนอเยอพช- ราก- ล าตน
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หนา 1
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รากพเศษ (Adventitious root)
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หนา 1
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หนา 1
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หนา 8
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หนา 17
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หนา 17
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หนา 18
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หนา 18
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หนา 26
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หนา 30
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หนา 30
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หนา 34
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หนา 35