The challenges of growing orchids from seeds for conservation: An assessment of asymbiotic techniques [PDF]
Lewis Knudson first successfully germinated orchid seeds asymbiotically on artificial medium in 1922. While many orchid species have since been grown asymbiotically, the tremendous variation in how species respond to artificial medium and growth ...
Devani Jolman +5 more
doaj +6 more sources
Asymbiotic germination and morphological studies of seeds of Atlantic Rainforest micro-orchids (Pleurothallidinae). [PDF]
The morphological and morphometric characters of seeds belonging to 11 species of the subtribe Pleurothallidinae using light and scanning electron microscopy were studied to understand the in vitro germination process.
Franciele Marx Koene +3 more
doaj +7 more sources
Influence of Culture Conditions on In Vitro Asymbiotic Germination of Anacamptis longicornu and Ophrys panormitana (Orchidaceae) [PDF]
This study is the first approach to in vitro asymbiotic germination of two species of Sicilian threatened terrestrial orchids, Anacamptis longicornu and Ophrys panormitana.
Myriam Arcidiacono +5 more
doaj +7 more sources
Cypripedium subtropicum embryo development and cytokinin requirements for asymbiotic germination [PDF]
Background Cypripedium subtropicum is a unique, endangered lady’s slipper orchid with evergreen leaves on non-dormant shoots that is native to southwestern China. This study documents the major developmental events in C. subtropicum seed development from
Holger Perner +4 more
doaj +4 more sources
Symbiotic and Asymbiotic Germination of Dendrobium officinale (Orchidaceae) Respond Differently to Exogenous Gibberellins. [PDF]
Seeds of almost all orchids depend on mycorrhizal fungi to induce their germination in the wild. The regulation of this symbiotic germination of orchid seeds involves complex crosstalk interactions between mycorrhizal establishment and the germination process.
Chen J +6 more
europepmc +6 more sources
Asymbiotic germination in three Chloraea species (Orchidaceae) from Chile [PDF]
Orchids require symbiotic fungi and/or specific conditions to germinate. Asymbiotic techniques have been shown successful for orchid germination. In Chile, Chloraea include many endemic, and potentially ornamental, terrestrial orchid species.
Guillermo Pereira +5 more
doaj +5 more sources
An Improved Protocol for Asymbiotic Seed Germination and Seedling Development of Paphiopedilum tigrinum [PDF]
Paphiopedilum tigrinum is an endangered orchid with high ornamental value. However, seed germination and seedling regeneration in P. tigrinum is very difficult in vitro. Little is known about why P. tigrinum seedlings are difficult to propagate or how to
Linling Yao, Jialin Huang, Shibao Zhang
doaj +4 more sources
Improvement of In Vitro Seed Germination and Shoot Development of the Indonesian Endangered Orchid, Dendrobium lineale Rolfe, Using Sucrose and Coconut Water [PDF]
Dendrobium lineale Rolfe is an important orchid species used as a parent in breeding. Currently, this orchid is classified as an endangered species and is listed in Appendix II according to CITES.
Edy Setiti Wida Utami +8 more
doaj +3 more sources
Abscisic Acid Inhibits Asymbiotic Germination of Immature Seeds of Paphiopedilum armeniacum. [PDF]
Paphiopedilum armeniacum is a rare orchid native to China with high ornamental value. The germination of P. armeniacum seeds is difficult, especially for the mature seeds, which is the major limitation for their large-scale reproduction. This study explored the reasons for seed germination inhibition from the aspects of the important plant endogenous ...
Xu X, Fang L, Li L, Ma G, Wu K, Zeng S.
europepmc +4 more sources
Asymbiotic germination of Vanilla planifolia in relation to the timing of seed collection and seed pretreatments. [PDF]
Abstract Background Vanilla planifolia is an important tropical orchid for production of natural vanilla flavor. Traditionally, V. planifolia is propagated by stem cuttings, which produces identical genotype that are sensitive to virulent pathogens. However, propagation with seed germination of V. planifolia is intricate
Yeh CH, Chen KY, Lee YI.
europepmc +5 more sources

