CHARACTERISTICS OF LAND SUITABILITY FOR Didymoplexis pallens Griff. (ORCHIDACEAE) AT BOGOR BOTANIC GARDENS

The orchid's present distribution faces daily threats including habitat loss and unsustainable exploitation. Didymoplexis pallens is a leafless rhizomatous terrestrial mycotroph. One of the factors that affect the orchid population is the abundance of orchid mycorrhizal fungi (OMF) in substrates, unfortunately, the information regarding the interaction between OMF and the presence of orchids is still not widely known. Whereas this information is required in the ex -situ conservation strategy of this terrestrial orchid in Bogor Botanic Gardens. The soil chemical analysis and mycorrhiza total number were taken by the Indonesian Soil Research Institute to determine levels of phosphorous, and nitrogen in the form of nitrate and ammonium, organic carbon, pH, texture, and mycorrhiza. The requirements for every orchid to live were different. This research could provide knowledge about soil properties that could aid in the relocation of this orchid's habitat. Litter decomposition can affect physical and chemical properties as well as the continuity of organic C as in soil. OMF is a kind of mycorrhiza symbiosis that arise among fungi and orchids, which is very required for the long-term viability of an orchid population. Numerous factors, or pairings of factors, could impact OMF distribution and orchid population distribution.