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TYPES OF VEGETATIVE REPRODUCTION - Coggle Diagram
TYPES OF VEGETATIVE REPRODUCTION
What Is Vegetative Reproduction?
Vegetative reproduction (also known as vegetative propagation, vegetative multiplication or cloning) is any form of asexual reproduction occurring in plants in which a new plant grows from a fragment of the parent plant or a specialized reproductive structure.
-Vegetative reproduction is based on mitosis and regeneration.
-New individuals are formed without the production of seeds or spores.
a) Propagation By Runners Or Stolons
Their horizontal stems grow above ground along the soil surface and produce adevntitious roots and new shoots.
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c) Propagation By Tuber
Tubers, such as potatoes, are fleshy underground storage structures composed of enlarged parts of the stem. A tuber functions in asexual propagation 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.
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b) 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 into pieces, each pieces may be able to give rise to a new plant.
-The plant uses the rhizome to store strach, protein and other nutrients.
-The rizoms have buds on them and they give rise to new plants that are genetical copies of the parent plant.
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d) Propagation By Bulb
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Bulbs are shortened underground storage structure. They are stems that are enclosed with fleshy, concentrics layered leaves. Bulbs produce smaller buds (lateral buds) which appear between the layers of the parent bulb. As the mature plants gets to the end of its life, the lateral bud develops into a smaller bulb that attaches to the base of the parent bulb. The new bulb can be separated and planted.
e) Propagation By Cutting
Cutting involves removing a piece of parent plant-stem, root or leaf, and planting it in a suitable medium. (such as soil water) until a new root system appears. At first roots are produced and then the shoot with the leaves.
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f) Propagation By Grafting
Grafting is a method of asexual plant propagation that joins plant parts from different plants together so they will heal and grow as one plant. The part of the vegetative wood, usually the stem or other aboveground plant part, from the desired variety to be propagated is called the scion.
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g) Propagation By Layering
Layering is a means of plant propagation in which a portion of an above-ground stem grows roots while still attached to the parent plant and then detaches as an independent plant. Layering is also utilized by horticulturists to propagate desirable plants.
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h) Tissue Culture
Tissue culture is a method of biological research in which the fragments of tissue form an animal or plant are transferred to an artifical environment in which they can continue to survive and function. Cells in a culture may multiply; Change size, form function, exhibit specialized activity or interact with other cells
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