Abstract: This paper describes the study on the Dendrobium candidum artificial seed prepared by using the clay and vermiculite powder as the encapsulating media. The results showed that the germination rate reached 56. 8 % , when the proportion of clay∶vermiculite∶water was 2∶1∶2. When this system was added with only 1. 0 % activated charcoal , or 1. 0 % activated charcoal and 0. 5 % starch , the corresponding average germination rates of the artificial seeds increased to 76. 7 % and 80. 3 %. The treatments enhanced the germination rate by 18. 4 % and 24. 2 % respectively , compared to the control . Both the effect of other seed coat materials used , such as chitosan , and the effect of protocorm-like bodies’water-loss rate on the rate of the artificial seed germination and storage were also studied.

Key words: Dendrobium candidum, Artificial seed, Solid encapsulatine