The regeneration of plants through tissue culture technique is called micropropagation. In this technique, plantlets are developed through differentiation in the callus and these plantlets are transferred to nature after hardening and acclimatization.
This technique has been adopted to regenerate commercially important plants such as many species of orchids (Cattleya, Cymbidium, Dendrobium, Vanda) and many ornamental plants such as “Gerbera”, Carnation, Bignonia, Chrysanthemum, etc. Many institutions and universities are engaged in a multiplication of important forestry and horticultural plants by micropropagation.