Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 45 for “"orchid"”.
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BLOOMING EXPRESSWAY : ORCHID FARMING OVER THE BUKIT TIMAH EXPRESSWAY
… Timah Expressway, and secondly, the tradition of orchid cultivation in Singapore.
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MOLECULAR ANALYSIS OF FLORAL PIGMENTATION IN THE ORCHID, BROMHEADIA FINLAYSONIANA
… biosynthetic pathway of a local species of orchid, Bromheadia finlaysoniana (Lindl.) Rchb. F. A cDNA library was constructed from the fully-opened flowers of Bromheadia finlaysoniana. cDNA clones encoding phenylalanine ammonia-lyase (PAL), chalcone synthase (CHS), flavanone 3-hydroxylase …
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Catechyl-lignin tissues in Vanilla orchid and Candlenut: structure/property studies
… (C)-lignin was found in the seed coat of vanilla orchid (Vanilla planifolia) and Melocactus cacti, and later in the nutshell of Aleurites moluccana (candlenut). This caffeyl alcohol homopolymer is the exclusive lignin in vanilla seed coat but separated in time and/or location with guaiacyl …
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Isolating and Identifying Fungal Endophytes from Roots of Rare Orchid Cypripedium arietinum in Grand Sable Dunes, Michigan
… year’s roots from 75 <em>C. arietinum</em> orchids at 75 locations within 4 jack pine forests in the Grand Sable Dunes, Pictured Rocks National Lakeshore, Michigan. Fungal endophyte cultures were obtained from roots and subcultured for DNA extraction. DNA was PCR amplified with primers that …
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Orchid Care: an exploration in experiential and theoretical environmental care practice shown to orchids through the Anthropocene
… theoretical environmental care practice shown to orchids through the Anthropocene. It revolves around two African orchid species, one in Cape Town and one in Zimbabwe, and the care practices shown to these plants. The thesis explores the question: in what way does an orchid's status generate a …
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Impact of Prescribed Fire on the Terrestrial Orchid, <i>Isotria medeoloides</i> in Virginia's Blue Ridge Mountains
… medeoloides</i> [Pursh] Raf.) is a terrestrial orchid with imperiled G2S2 conservation status. It is native to Appalachia from Georgia to Quebec. This orchid is one of many species whose habitat is being lost to degradation. This mycoheterotrophic orchid is seasonally dormant, but can also …
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Investigation into the use of molecular methods to distinguish between species of Caladenia subgenus Calonema
The phylogeny of typical spider orchid (Caladenia subgenus Calonema) is investigated for the first time. The analyses were performed using 17 RAPD and 10 ISSR primers on 30 taxa representing the three spider orchid groups (the dilatata, patersonii and reticulata groups) yielding 135 RAPD and 63 …
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Assessment of the microbiome associated with endangered orchids
The Orchidaceae (orchid family) is perhaps the most speciose group of flowering plants with approximately 25,000 described species and many thousands of hybrids. While certain mycorrhizal fungi are required for orchids to germinate, these mycorrhizae form just part of a microbial community that …
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Diversity of mycorrhizal fungi and carbon nutrition in tropical epiphytic orchids
Orchids, in the nature, depend on the interaction with mycorrhizal fungi to complete the life cycle. At the center of the interaction, different fungi are involved which promote the exchange of compounds, mainly carbon, with the host orchid. However, the diversity of mycorrhizal fungi, mainly those …
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EFFECTS OF FOREST SUCCESSION ON RAM'S HEAD LADY'S SLIPPER (CYPRIPEDIUM ARIETINUM) POPULATIONS IN THE GRAND SABLE DUNES, MI
… since Bozic (2015) first surveyed GSD. I counted orchids, flowers, and fruit set in 741 1-m radius plots using stratified random sampling across 44 islands. I also resurveyed three 4 x 4-m permanent plots established by Bozic. The estimated C . ari e t i n u mpopulation declined by 65% in the …
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Pengaruh pemberian Benzilaminopurin (BAP) terhadap proliferasi Protocorm Like Body (PLB) anggrek Phalaeonopsis dan Dendrobium pada media 1/2 MS
… proliferate embryogenesis. The multiplication of orchid PLB was plant on MS solid medium recently, while plant on liquid medium is seldom to do. The result utilizing of solid medium by treatment BAP 0,5 mg/l is the most optimum in proliferation growth of puring plant (Codicum variegatum). On the …
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PRODUCTION OF VIRUS-FREE ORCHIDS VIA TISSUE CULTURE TECHNIQUES
… propagation, most commercially cultivated orchid hybrids are systemically infected with cymbidium mosaic virus (CyMV) and/or odontoglossum ringspot virus (ORSV). Two tissue culture techniques were employed in this project to eliminate the viral pathogens from the infected orchid plants: …
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An end to end solution for complex open educational resources
… repositories. We created a desktop tool named ORchiD, Open educational Resources Depositor, to achieve this goal. The tool encompasses educational metadata and content packaging standards to create packages while conforming to a deposit protocol to ingest resources to repositories.
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Nuclear Waste Management and Environmental Justice in Taiwan.
… in the context of nuclear waste controversies on Orchid Island in Taiwan through the analysis of the differences between the Yami tribe and the Taiwanese migrants in their attitudes toward risks of the local nuclear waste repository and their understanding of the conception of environmental …
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The embryology, seed coat, and conservation of some Kenyan species of the orchidaceae
… and symbiotic seed germination of the Kenyan orchid species of the subfamily Epidendroideae were examined critically in order to elucidate their development and importance in conservation. The embryology of ca. 70 species was studied by clearing-squash techniques and …
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