Abstract
Orchid mycorrhizal fungi were inoculated on Habenaria radiata tubers in vitro, and we tried to make it clear whether the growth of the plants was promoted, and what kind of absorbed nutrients brought about the growth promotion. Based on these findings, the effectiveness of the mycorrhizal fungi inoculation in the growth promotion of the daughter tubers was discussed.
1. As for the orchid mycorrhizal fungi inoculation, it became clear that the orchid mycorrhizal fungi promoted plant growth and the enlargement of daughter tubers.
2. It was considered that plant growth was promoted by the mycorrhizal fungus inoculation because the plant absorbed carbon compounds from the oatmeal medium through the action of the fungi.
3. It could not be determined whether the plant absorbed carbon compounds directly through its own roots, or through the orchid mycorrhizal fungi.
