Biology


Chapter : 6. Reproduction

Vegetative Propagation

Vegetative Propagation :
In vegetative propagation, new plants are obtained from the parts of old plants like stems, roots & leaves, without the help of any reproduction. It can be achieved naturally or artificially.
There are two ways of vegetative propagation.
(a)
Natural Vegetative Propagation :
Various sturcture that take part in this type of reproduction are roots, stem, leaves.
Natural Vegetative Propagation by Roots :
In some plants like Dahlia, sweet potato, etc., the adventitious roots become thick, swollen and tuberous due to storage of food.
Natural Vegetative Propagation by Stems :
Some plants reproduce by means of stems. They may be aerial like runners, suckers or underground like ginger (rhizome), potato (tuber), and sugarcane.
Natural Vegetative Propagation by Leaves :
The fleshy leaves of Bryophyllum bear adventitious buds in the notches along the leaf margin.
(b)
Artificial Vegetative Propagation :

Some plant growers have developed artificial methods of vegetative propagation like cutting, layering and grafting which are used in agriculture and horticulture.

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