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Answer Posted / navya.t
This is the propagation of plants involving cell and
tissue culture.If vegetative propagation is not possible in
a crop,then buds,shoot apex or any other part of the plant
can be used as explant for micropropagation.The explants
are treated with sterilisation chemicals to prevent
microbial growth,and then cultured in a particular nutrient
medium.Cells grow and divide to form nutrient medium.Cells
grow and divide to form a cell mass called callus.Some
growth regulators (plant hormones)are added.The callus
differentiatesinto plant parts looking like a tiny plant
(plantlet).After 4-6 weeks the plantlets can be transferred
to the soil.This can be used to drive and multiply disease-
free stock.This is a kind of tissue culture technique.It is
being used in
orchids,gladiolus,chrysanthemum,potato,sugarcane,etc........
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