Natural Vegetative Propagation

Propagation through Stems:

1.  Bulbs:
   

• Underground Stem
  
• Store Food
  
• Surrounded by Thick & Fleshy Scale Leaves
  
• When Bulb is cut in half, layers are obtained
  
• Shoots – From Buds on top of base
  
• Roots – From Buds under base of bulbs
  
• Examples: Tulips, Onions and Lilies

2. Corms:

• Swollen underground stems
  
• Stored food
  
• Scale Leaves
  
• Nodes are the points from which buds, leaves, twigs originate
  
• When Corm is cut in half, Solid mass obtained
  
• Upper buds at top of corm – Grow Shoots
  
• Lower buds at base – Grow adventitious roots
  
• Examples: Dasheen (Arvi) and Garlic
  
  
  
  
  
  
  

3. Rhizomes:

• Underground Stems
  
• Scale Leaves Prominent
  
• Horizontal Stems
  
• Enlarged nodes on stem giving rise to buds, leaves etc.
  
• Buds on upper surface – Shoots
  
• Buds on lower surface – Adventitious Roots
  
• Examples: Ginger, Ferns and water lilies.
  
  
  
  

4. Stem Tubers:

• Enlarged Rhizomes
  
• Buds called EYES
  
• Aggregations of buds in the form of “eyes”
  
• Store food
  
• Upper buds – Shoots
  
• Lower buds – Roots
  
• Examples: Potatoes and yams
  
  
  
  
  
  
  
  

 5. Suckers:

• Lateral Stems close to ground (Not too deep)
  
• Grows underground laterally for some distance and then turns up to produce new plant.
  
• Buds and Nodes
  
  
  
  
  

Propagation through Leaves:

• Bryophyllum
  
• Fleshy leaves
  
• Adventitious bud along margins of leaves having notches
  
• Buds grow into new plant-lets and roots
  
  
  
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