Back to Home
Home >>Plant Biotechnology >> Micropropagation
Back to Home

Micropropagation - Propagation or multiplication of heterozygous genotypes is, of necessity, by vegetative propagation as it involves only mitotic cell division. Progeny obtained by vegetative propagation (or asexual reproduction) of a single plant or individual constitute a clone. By definition, members of a single clone have the same genotype.

Further, different varieties of vegetatively propagated plants are distinct clones. Conventionally, vegetative reproduction is achieved by cutting, budding, grafting, etc.

Tissue culture also enables rapid clonal propagation of plants; this is usually called micropropagation. This is the only process of plant biotechnology, which is being utilized by industries in India for commercial production of mainly ornamental plants and fruit tree, e.g., banana.

The ornamental plants are produced almost entirely for export, generally, under contract with foreign companies, but fruits like banana and plantation crops like cardemom are mainly for the domestic market.
The following processes are employed for micropropagation:
(i) proliferation of axillary buds,
(ii) induction of adventitious buds, bulbs, protocorms etc., and
(iii) somatic embryogenesis.