CBSE Class 12-science Answered
Methods of Vegetative Propagation:
Natural Vegetative Propagation
PROPAGULES |
DESCRIPTION |
EXAMPLES |
Rhizome
|
|
Ginger, turmeric etc. |
Stem tuber
|
|
Potato, artichoke etc. |
Corm
|
|
Crocus, gladiolus etc.
|
Bulb
|
|
Mint, pear, banana etc. |
Runners
|
|
Strawberry, creeping grass, Desmodium etc. |
Offsets
|
|
Houseleek (Pistia), Eichhornia etc. |
Stolon
|
|
Blackberry, fern etc.
|
Root tubers
|
|
Dahlia, sweet potato etc. |
Leaf buds |
|
Dahlia, sweet potato etc. |
Bulbils |
|
Yam etc. |
Artificial Vegetative Propagation
METHOD |
EXAMPLES |
Cutting is removing a portion of the stem and fixing it into the soil to allow the growth of roots and shoots.
|
Stem cutting: Rose, Bougainvillea, etc. Root cutting: Lemon, tamarind etc. |
Grafting is joining a part (stem or bud) of a living plant to another, causing it to grow as a part of another plant. Types of grafting Approach grafting Cleft grafting Tongue grafting/whip grafting Bud grafting
|
Sapota, mango, guava, apple, orange, peach, rose etc. |
Layering is a method in which a branch of the plant is covered with some material and supplied with water to produce roots. Types of layering Air/aerial layering Ground/mound layering
|
Hibiscus, jasmine, rose, Bougainvillea etc. |