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TYPES OF VEGETATIVE REPRODUCTION - Coggle Diagram
TYPES OF VEGETATIVE REPRODUCTION
Propagation by Runners or Stolons
The horizontal stems grow above ground along the soil surface and produce adventitious roots and new shoots.
strawberries
currants
Propagation by Rhizome
Rhizomes are horizontal stems that grow under the ground, often sending out roots and shoots from their nodes. If a rhizome is separated to pieces, each may be able to give rise to a new plant.
The plant uses rhizome to store starch, protein and other nutrients.
The rhizomes have buds on them and they give rise to new plants that are genetically copies of the parent plant.
ginger
couch grass
banana
Propagation by Tuber
Tubers, such as potatoes, are fleshly underground storage structures composed of enlarged parts of the stem.
A tuber functions in asexual reproduction as a result of the tiny scale leaves equipped with buds that grow on its surface. Each of these buds can form a new plant, genetically identical to the parent.
Potatoes
Cassava
Dahlias
Propagation by Bulb
Bulbs are inflated parts of the stem within which lie the central shoots of new plants.
They are typically underground and are surrounded by plump and layered leaves that provide nutrients to the new plants.
Garlic
Onions
Amaryllis
Propagation by Cutting
Cutting involves removing a piece of the parent plant - stem, root or leaf, and planting it in a suitable medium.
examples:
hibiscus, rose and many more flowers
Propagation by Grafting
Two plants are used to develop a new plant with combined traits from the parent plants. In grafting one plant is attached to the body of the other plant.
Propagation by Layering
The development of roots on a stem while the stem is still attached to the parent plant is called layering.
A layer is the rooted stem following detachment from the parent plant.
Some plants propagate naturally by layering, but sometimes plant propagators assist the process.
examples:
climbing roses
honeysuckle
Tissue Culture
In tissue culture, plant cells are taken from various parts of the plant and are cultured and nurtured in a sterilized medium.
The mass of developed tissue, known as the callus, is then cultured in a hormone-ladened medium and and eventually develops into plantlets which are then planted and eventually develop into grown plants.