Abstract
Symbiotic and non-symbiotic germination of Goodyera schlechtendaliana seeds were tested on a Knudson C medium and on an oat-powdered agar medium inoculated with or without one of four Rhizoctonia strains isolated from orchid mycorrhizae. A binucleate Rhizoctonia isolate No. 706 obtained from Dactylorhiza aristata was the most effective symbiont for G. schlechtendaliana. Symbiotic culture with the isolate No. 706 was effective in promoting seed germination and protocorm development compared with non-symbiotic culture. All acclimated plantlets derived from the seeds which were inoculated with No. 706 were successfully established.
