Abstract: The effect of four culture media on the germination of seeds of Cymbidium goeringii was studied. MS medium is superior to SH/2, VW and Knudson media. The peicentages of germination of seeds in different maturity were calcu- lated. About three months before the dehiscence of the capsule, the seeds are ready for germination. The effects of hormones on the differentiation of the rhizomes were studied. When the amount of NAA added to the medium is greater than that of BA, the rhizomes remain to form rhizomes; when BA is greater than NAA, the rhizomes differentiate to form buds. But, if the buds are transfered into the medium without hormone or with 10% coconut milk, the buds stop to grow and new rhizomes grow out from the basal portions of the buds.

Key words: germination, rhizomes, BA