it is the method through which clones of the plants are made by vegetative propagation

Clonal Propagation

Mohammed Hassan Assareh has written:

'In vitro plant regeneration through organogenesis, somatic embryogenesis and photoautotrophic micropropagation of some Eucalyptus spp' -- subject(s): Eucalyptus, Morphogenesis, Micropropagation, Somatic embryogenesis

certainly, there are more varieties that have NOT been micropropogated than those that have been

Micropropagation is a technique, which is used to propagate plants that are

(1) Threatened/endangered

(2) Difficult to propagate conventional methods

(3) Poor seed availability (poor sexual reproduction)

The reason behind the use of the technique varied depends upon user/plant.

The technique is not a expensive one when it used properly.