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Write a note on artificial vegetative propagation. |
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Answer» Man made methods of vegetative reproduction are called artificial vegetative propgation. They are mainly as follows : (i) Cutting : In this method a small piece of any plant organ bearing buds such as stem, (sugarcane, rose, Botrgainuillea etc), root (Tamarind) and leaves (Bougainaillea) are used for propagation. (ii) Layering : In this method the roots are artiliciaily method produced on the stem or branches before they are cut and detached from the parent. (iii) Grafting : In this method, the parts of plants are joined in such a way that they appear and grow as one plant. The supporting part of the plant which is rooted is called stock. The twig or the part of another plant which is joined to it is called scion. Grafting is commonly used in mango, guava, apple, pear, etc. (iv) Micropropagation : This is a method of propagating the plants by tissue culture technique. This includes culturing of cells, tissue or organs in the laboratory under aseptic conditions resulting in the formation of an undifferentiated mass of cells called callus. Later on a large number of plantlets are produced from this callus. |
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