Conservation of indigenous orchids
2003
Altoveros, N.C. | Sotto, R.S. | Patena, L.F. | Dioneda, M.A.R. (Philippines Univ. Los Banos, College, Laguna (Philippines))
Orchids are badly affected by habitat destruction and their unabated collection. A promising technique of conserving the diversity and genetic variability of indigenous orchid species is by storing seeds under low temperature and moisture content (MC) instead of maintaining few elite plants of each species- a financially and technically difficult feat. The authors developed a conservation system of Philippine indigenous orchids in the project "Investigation into the conservation of biodiversity of indigenous orchids using seeds" from 1998 to 2001. This conservation technique consists of : a) collecting mature capsules; b) drying seeds to 7% MC; c) storing seeds in glass bottles with silica gel at 0 deg C; d) rehydrating the conserved seed under room temperature (preconditioning treatment); and e) using in vitro germination. The conserved seeds can be regenerated later and reintroduced into the ecosystem and habitat from where they were collected, if needed. This system facilitates the conservation of numerous indigenous orchid species at one time. It simplifies handling and maintenance of orchid species at a lower cost, lesser space, and with higher efficiency than the traditional way of conserving the seeds
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