Abstract
Callus of carrot (Daucus carota L.) was dried for about 6 hours at 27°C in tall petri dishes containing silica gel. The water content of dried calli was around 3%. After storage for four days at 27°C in the dry state, they were transferred directly to MURASHIGE and SKOOG's agar medium (MURASHIGE and SKOOG 1962). Survival rate was as high as 90% as determined by callus growth and embryo and plantlet differentiation in 21-day cultures. The significance of the successful retention of differentiation potentials in dried callus is discussed in relation to conservation of plant genetic resources.
