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Vegetative Reproduction/Vegetative Propagation - Coggle Diagram
Vegetative Reproduction/Vegetative Propagation
What Is It?
New plants are developed from non-reproductive part of the parent plant.
This is because there are some plant cells called meristematic cells,they are used in the regeneration for the missing parts of plants.
There are meristematic tissues in the rhizome, stolon and tuber stems of the
plants.
It is based on mitosis and regeneration.
It is quicker than sexual reproduction.
New individuals are formed without the need to produce seeds or spores.
It is a form of asexual reproduction in plants, which multicellular structures become detached from the parent plant and develop into new individuals
These are genetically identical to the parent plant.
Types Of Vegetative Reproduction/Propagation
Propagation by Rhizome
They are horizontal stems that grow under the ground and send out roots and shoots from their nodes. They have buds on them and they give rise to new plants
Its seen on ginger, couch grass, banana etc.
Propagation by Bulb
The bulbs are shortened underground storage stems. Bulbs produce smaller buds (lateral buds) which appear between the layers of the parent
bulb.
When it has to the end of its live the bud develops into smaller bulb that attaches to the base
of the parent bulb. The new bulb can be planted
For example;tulips and onion
Propagation by Runners or Stolons
Their horizontal stems grow above ground on the soil surface and
produce adventitious roots and new shoots to create a new plant.
Its seen on Strawberry and Peppermint
Tissue Culture
Is a method of biological research in which a tissue sample from a plant or animal are taken and transferred to a artificial enviroment where they continue to function.
Tissue cells are taken from meristematic cells in
plants.
These cells divide by meiosis to form a group called callus.
Callus is treated with growth factors to make them turn into new tissues..
It makes it possible for a new organism to be made with one parent.
This helps save endengered species.
Easy and fast reproduction
Propagation by layering (Artificial)
Branch of a parent plant is bent to the soil or water until it becose covered, and then a new root system appears.The tip of the shoot remains abowe ground so new sooths and a plant will grow out.
Propagation by grafting (Artificial)
Two plants are combined to develop a new plant with combined traits from the parent plants.While doing it one plant is attached on to body of the other plant.
The root part is called a Stock and the upper part is called a Scion.
It takes
less time than reproducing with seeeds.
Propagation by cutting (Artificial)
It involves removing a piece of the parent plant and planting it in a suitable medium until a new root system appears.And then it produces leaves.
It should be done by a human because it is not a natural process.
Propagation by Tuber
Tubers, are underground
food storage structures composed of enlarged parts of the stem. The stems grow underground.The tiny scale leaves equipped with nods(eyes) rise on ground and produce new plants.
Foor example;sweet and white potato.
