Relevant bibliographies by topics / Orchid

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Orchid'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 February 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Orchid.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Orchid"

1

Farokhah, Tria, Sri Utami, and Jumari Jumari. "Diversity and Abundance of Orchids at Gebugan Nature Reserve in Semarang, Indonesia." Biosaintifika: Journal of Biology & Biology Education 10, no. 2 (August 29, 2018): 284–90. http://dx.doi.org/10.15294/biosaintifika.v10i2.14579.

Full text
Abstract:
Orchid is a plant with a high aesthetic value.The existence of orchids directly by the community from their natural habitat, causing the existence of orchid in nature was threatened. The potential of orchid diversity in the Gebugan Nature Reserve area needs exploration to maintain its sustainability. This research would explore the diversity and abundance of orchid species and determined the environmental conditionof Gebugan Nature Reserve. The study was done on 2 stations with altitude difference are 900 m asl and 1045 m asl. Five plots of 10 m x 10 m were systematically constructed at each station with a distance of plots 50 meters. Species of orchids found in the Gebugan Nature Reserve were 12 species, including 11 species of epiphytic orchids and 1 species of terrestrial orchids. The abundance of individual orchid species was relatively higher in places with higher altitudes. Micropera sp was the most abundant orchid species and Corymborkis veratrifolia was the species of orchid with the lowest abundance. It is found that the environmental conditions of Gebugan Nature Reserve are suitable for orchid. The novelty of the research is providing a new data base of orchid in the Gebugan Nature Reserve. The result of the study would be beneficial for developing strategy of genetic conservation of orchird germplasm.
APA, Harvard, Vancouver, ISO, and other styles
2

Molnár V., Attila, Viktor Löki, Marc Verbeeck, and Kristóf Süveges. "Orchids of Azerbaijani Cemeteries." Plants 10, no. 12 (December 16, 2021): 2779. http://dx.doi.org/10.3390/plants10122779.

Full text
Abstract:
In order to explore their orchid flora, we performed surveys of 96 Azerbaijani burial places in 2018 and 2019. Altogether, 28 orchid taxa were found in 37 visited cemeteries. In the orchid diversity a remarkable pattern was observed: geographic latitude was significantly and positively related to the number of taxa and number of individuals. The most widespread and abundant orchids in Azerbaijani graveyards were Anacamptis pyramidalis and A. papilionacea (found in 23 and 8 cemeteries, respectively). Azerbaijani cemeteries can be important refuges for rare and threatened orchids, e.g., Himantoglossum formosum (three cemeteries), Ophrys sphegodes subsp. mammosa (eight), Orchis adenocheila (two), O. punctulata (three), O. stevenii (one) and Steveniella satyrioides (one). Epipactis turcica, detected in a single locality, was previously unknown to the flora of Azerbaijan. Additionally, we documented orchid tuber (salep) collection in two cemeteries.
APA, Harvard, Vancouver, ISO, and other styles
3

Liu, Hong, and Robert Pemberton. "Pollination of an invasive orchid, Cyrtopodium polyphyllum (Orchidaceae), by an invasive oil-collecting bee, Centris nitida, in southern Florida." Botany 88, no. 3 (March 2010): 290–95. http://dx.doi.org/10.1139/b10-017.

Full text
Abstract:
The lack of appropriate pollinators is believed to be an impediment to naturalization of orchids. We studied the self-compatibility and pollination of an invasive, showy, rewardless, terrestrial orchid ( Cyrtopodium polyphyllum (Vell.) Pabst ex F. Barrios) in southern Florida. Pollination treatments indicated that the orchid is self-compatible but not autogamous. Visitor observations indicated that the orchid is pollinated by an invasive specialist oil-collecting bee ( Centris nitida Smith). The presence of the invasive Centris nitida has probably contributed to the naturalization of this probable oil reward mimicking orchid in Florida. We contrasted our results in the orchid’s invasive range with those reported in two studies in the orchid’s native range. In the invasive range in Florida, the orchid experiences a lower inbreeding depression. In both areas, the orchid is pollinated by Centris species and the pollination of the orchid is apparently enhanced by the presence of oil-rewarding species of the Malpighiaceae.
APA, Harvard, Vancouver, ISO, and other styles
4

Rewers, Monika, Iwona Jedrzejczyk, Agnieszka Rewicz, and Anna Jakubska-Busse. "Genome Size Diversity in Rare, Endangered, and Protected Orchids in Poland." Genes 12, no. 4 (April 13, 2021): 563. http://dx.doi.org/10.3390/genes12040563.

Full text
Abstract:
Orchidaceae is one of the largest and the most widespread plant families with many species threatened with extinction. However, only about 1.5% of orchids’ genome sizes have been known so far. The aim of this study was to estimate the genome size of 15 species and one infraspecific taxon of endangered and protected orchids growing wild in Poland to assess their variability and develop additional criterion useful in orchid species identification and characterization. Flow cytometric genome size estimation revealed that investigated orchid species possessed intermediate, large, and very large genomes. The smallest 2C DNA content possessed Liparis loeselii (14.15 pg), while the largest Cypripedium calceolus (82.10 pg). It was confirmed that the genome size is characteristic to the subfamily. Additionally, for four species Epipactis albensis, Ophrys insectifera, Orchis mascula, Orchis militaris and one infraspecific taxon, Epipactis purpurata f. chlorophylla the 2C DNA content has been estimated for the first time. Genome size estimation by flow cytometry proved to be a useful auxiliary method for quick orchid species identification and characterization.
APA, Harvard, Vancouver, ISO, and other styles
5

Sulistya Dewi, Endah Rita, Ary Susatyo Nugroho, and Maria Ulfa. "Menuju Desa Konservasi Aggrek di Desa Ngresep Balong, Limbangan Kendal." Journal of Dedicators Community 2, no. 2 (July 9, 2018): 100–107. http://dx.doi.org/10.34001/jdc.v2i2.702.

Full text
Abstract:
Forest Ungaran Mountain has a variety of plant diversity, one of which is a kind of forest orchids. Along with the wild hunting of Ungaran Mountain orchard and the change of function and clearing of forest land, then the popuasi and natural habitat for Ungaran Mountain Orchid species increasingly reduced. This makes the villagers of Ngesrep Balong feel worried about the species will disappear or extinct. To anticipate this, the villagers realized that the effort to conserve orchid of Ungaran Mountain needs to be done. The main problem is that villagers do not have enough skills to do conservation effort independently. Therefore it is very necessary to do counseling and training through this PPDM activity so that villagers gain knowledge and skills in conducting activities of conservation, cultivation until production of Ungaran Mountain Orchid independently. At Mount Ungaran Resort Limbangan Kendal District, found 12 species of orchids derived from 8 genera. Of the 12 species are 10 species of which are orchids epiphytes and two other types of terrestrial orchids. Looking at the potential, it can be concluded that Ngesrep Balong Village has potential to be used as Conservation Village of Orchid
APA, Harvard, Vancouver, ISO, and other styles
6

NGUYEN, Hoang Chinh, Kuan-Hung LIN, Meng-Yuan HUANG, Chi-Ming YANG, Tin-Han SHIH, Tung-Chuan HSIUNG, Yen-Chang LIN, and Fun-Chi TSAO. "Antioxidant Activities of the Methanol Extracts of Various Parts of Phalaenopsis Orchids with White, Yellow, and Purple Flowers." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 46, no. 2 (February 12, 2018): 457–65. http://dx.doi.org/10.15835/nbha46211038.

Full text
Abstract:
Phalaenopsis (Phal.) orchids including white, yellow, and purple flowers are some of the most important commercial orchids worldwide. These flowering plants can be considered to be promising sources of antioxidants since several medicinal orchids were shown to have potential antioxidant activities. The antioxidant activities and several secondary metabolite compounds of the methanolic extracts of four parts (the root, pedicel, leaf, and flower) of three hybrids of white (Phal. ‘City More’), yellow (Phal. ‘Sogo Meili’), and purple (Phal. ‘Queen Beer’) flowering orchids were investigated. Results showed that the highest levels of chlorophyll a and chlorophyll b were respectively obtained in leaf extracts of white and purple orchids, whereas carotenoid showed the highest content in the flower extract of the yellow orchid. Among all tested extracts, flavonoids and anthocyanin demonstrated the highest levels in the flower extract of the purple orchid, whereas the highest level of polyphenols was observed in the flower extract of the yellow orchid. The leaf extract of the white orchid was the most effective extract with a 50% inhibitory concentration in the DPPH-scavenging activity assay, while the highest ferrous iron-chelating effect was observed in flower extracts of the yellow orchid and purple orchid, and the pedicel extract of the purple orchid. In the reducing power assay, the flower extract of the white orchid showed the most potent extract, followed by the leaf extract of the yellow orchid and the flower extract of the purple orchid. Relationships between flower colors and antioxidant activities of these orchids showed them to be potential sources of antioxidants for both medicinal use and stress-tolerance in these orchids.
APA, Harvard, Vancouver, ISO, and other styles
7

Ray, Haleigh, and Wagner Vendrame. "Orchid Pollination Biology." EDIS 2015, no. 6 (September 1, 2015): 6. http://dx.doi.org/10.32473/edis-ep521-2015.

Full text
Abstract:
Orchids and their pollinators have developed fascinating co-adaptations that promote orchid pollination. This 6-page fact sheet details the various and often strange ways that orchids attract pollinators. The kinds of insects and animals that pollinate orchids and orchids’ reproductive anatomies and processes are also covered. Written by Haleigh Ray and Wagner Vendrame, and published by the UF Department of Environmental Horticulture, June 2015. ENH1260/EP521: Orchid Pollination Biology (ufl.edu)
APA, Harvard, Vancouver, ISO, and other styles
8

Lalla, Milawati, and I. Made Sudiarta. "Pengembangan Tanaman Anggrek di Kawasan Wisata Hutan Pinus Motilango Kecamatan Tibawa Kabupaten Gorontalo." Jumat Pertanian: Jurnal Pengabdian Masyarakat 3, no. 2 (August 19, 2022): 87–91. http://dx.doi.org/10.32764/abdimasper.v3i2.2372.

Full text
Abstract:
Orchid is one type of ornamental flower plant that has many types spread throughout the world, including Indonesia. The original habitat of orchids is forests or areas that have high humidity, rich in organic matter. Reduction of forest area makes several types of orchids threatened with extinction so that efforts are needed for conservation and protection. Motilango pine forest tourism found several types of orchids, but the surrounding community did not know the prospect of orchid plants if they were developed properly. The purpose of the activity is to educate the local community and tourism managers to cultivate orchids to become a source of family income. The method used is discourse method and discussion. Participants consist of communities around the area, village officials and pine forest tourism managers. The material presented consisted of an introduction to the characteristics of orchids, prospects, methods of propagation and cultivation of orchids. The result of the activity is that there is an increase in participant knowledge about orchid plants. There are two types of orchids that are commonly found in the tourist area of Motilango pine, namely the dove orchid (Dendrobium crumenatum) and the ground orchid (Spathoglottis plicata) which are easily propagated by separating seedlings. Orchid growing media that is widely available in the area is coconut husk.
APA, Harvard, Vancouver, ISO, and other styles
9

PUSPITANINGTYAS, DWI MURTI. "Orchid exploration in Mount Bintan Besar Protected Forest, Bintan Island, Riau Islands Province, Sumatra, Indonesia." Biodiversitas Journal of Biological Diversity 19, no. 3 (May 1, 2018): 1081–88. http://dx.doi.org/10.13057/biodiv/d190341.

Full text
Abstract:
Puspitaningtyas DM. 2018. Orchid exploration in Mount Bintan Besar Protected Forest, Bintan Island, Riau IslandsProvince, Sumatra, Indonesia. Biodiversitas 19: 1081-1088. Sumatra is one of the main islands in Indonesia. The biodiversity is higherthan Java, but still below compare to Borneo and New Guinea. About 1,118 species of orchids are found growing in Sumatra, which41% of these are endemic to Sumatra. The exploration activities were conducted at Gunung Bintan Besar Protected Forest, Bintanisland-Sumatra. Orchid exploration was conducted in this area to collect living plants for ex situ conservation purpose. Orchid inventoryto record orchid diversity in this area, based on plant collection by purposive random sampling. The results of the study recordedapproximately 23 orchid collection numbers found in that area. These were representative of 15 genera and consist of 14 species ofepiphyte orchids and 9 species of terrestrial orchids. Most orchids found in this area are lowland orchid which are very common inSumatra. Dendrobium metachilinum Rchb.f., Dendrobium leonis (Lindl.) Rchb.f. and Plocoglottis lowii Rchb.f. are unique orchidsspecies found on this island.
APA, Harvard, Vancouver, ISO, and other styles
10

Gaman, Gasper, Nouke Lenda Mawikere, and Barahima Abbas. "Perbanyakan Beberapa Jenis Anggrek Melalui Teknik Kultur Jaringan dan Analisis Keanekaragaman Genetik Berdasarkan Penanda RAPD." Cassowary 1, no. 2 (July 5, 2018): 121–32. http://dx.doi.org/10.30862/casssowary.cs.v1.i2.16.

Full text
Abstract:
Papua is the habitat of a variety of orchids and several of orchid species are endemic in Papua. Diversity of orchid species in Papua is a natural resource which needs special attention in conservation efforts and cultivation. The aimes of this research were determined the suitable medium for in vitro propagation technique of several orchid species which endemic in Papua and determine the genetic diversity of five orchids species using RAPD markers. The research was carried out by cultivation of five edemism orchid species on MS medium which enriched 0 to 40% coconut water. Genetic diversities of five orchid species were determined by using RAPD markers. Results of research showed that overall of orchid were cultured can grow to planlet formation. The suitable medium for growing orchids based on this experiment was Murashige and Skoog (MS) medium that enriched with 40% coconut water. Molecular analysis using RAPD markers showed that the five species of Papua orchid were tested different from another. UPGMA grouping based on the polymorphic bands show that the five species of orchid studied were devided into three groups on the coefficient of 0.4 or 40% their genomic different.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Orchid"

1

Yousef, Mahmood Mohammad. "Black Orchid." Digital Commons at Loyola Marymount University and Loyola Law School, 1985. https://digitalcommons.lmu.edu/etd/728.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hughes, Oliver Thomas Wesley. "Orchid-mycorrhiza relationships : propagation of terrestrial and epiphytic orchids from seed." Thesis, Manchester Metropolitan University, 2018. http://e-space.mmu.ac.uk/621969/.

Full text
Abstract:
Many orchids are rare and endangered due to habitat loss, degradation and human interference. This thesis aims to improve our understanding of orchid-mycorrhiza relationships and optimise methods for successful in vitro germination and development of terrestrial and epiphytic orchids. The research undertaken advances our understanding of orchids and has applications for conservation and horticulture. Fungal specificity plays a key role in orchid distribution and the colonisation of habitats. This was investigated in the Australian terrestrial orchid, Microtis media R. Br. in Chapter 2. Experiments demonstrated low fungal specificity in germination in vitro, although later development was more specific, with one fungus inducing protocorm development through to adult plants. Fungal compatibility was tested in several Eurasian terrestrial orchids in Chapter 3. Varying degrees of specificity were observed, with Anacamptis morio (L.) R.M.Bateman, Pridgeon & M.W.Chase and Dactylorhiza incarnata (L.) Soό displaying low fungal specificity whereas Serapias spp. were more specific. Orchids are commonly propagated without fungi using asymbiotic media. Asymbiotic and symbiotic methods were compared in two Eurasian terrestrial orchids in Chapter 4. In both cases, symbiotic methods resulted in higher germination and development. In Anacamptis laxiflora (Lam.) R. M. Bateman, Pridgeon & M. W. Chase, successful seedling establishment ex vitro was only achieved with symbiotic seedlings. Following this study, the effect of substrate rugosity and complexity on germination in asymbiotic and symbiotic culture of two Eurasian terrestrial orchids was investigated in Chapter 5. Substrate rugosity had a positive effect on germination and development in symbiotic cultures of A. morio and both asymbiotic and symbiotic cultures of Dactylorhiza purpurella (T.Stephenson & T.A.Stephenson) Soó. The subtribe Pleurothallidinae is one of the largest in the Orchidaceae and little is known about their propagation requirements. A number species from different genera within this group were tested with different asymbiotic media and fungi isolated from plants in an ex situ collection in Chapter 6. Germination was highest with two fungal strains but development of plantlets only occurred on asymbiotic media. Ex situ study and propagation of myco-heterotrophic orchids poses some difficulties. A novel method is presented, using microcosms for the initiation of tripartite symbioses with tree seedlings, fungi and orchids in Chapter 7. Associations between tree seedlings, fungi and orchid seed were observed. Germination was not achieved with seed of Neottia nidus-avis (L.) Rich. The method provides a basis for further development with applications in a range of ecological studies.
APA, Harvard, Vancouver, ISO, and other styles
3

Petersen, Kellie. "Hybridizers and the Hybridized: Orchid Growing as Hybrid "Nature?"." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7350.

Full text
Abstract:
Orchid growing is a hobby that includes not only acquiring and caring for orchids, but also learning about the diverse care requirements of various orchids, attending meetings of orchid groups, having one’s orchids evaluated by American Orchid Society judges or being a judge, or even creating hybrids. In this way, orchid hobbyists compose a distinctive subculture (Hansen 2000). Yet the activity of orchid growing also forms a nexus between the non-human and the human, two categories that are often constructed as an opposing binary. This thesis focuses on how orchid growing represents both the embedded, institutionalized characteristic of the binary between the non-human and the human and how this binary is actively deconstructed; that is, orchid growers often reinforce this binary through positioning their orchids as a part of “nature” and also blur it by participating in the activity of orchid growing. Through observations of monthly meetings of two local orchid groups and affiliated events and walking tours of individual participants’ orchid growing spaces and semi-structured interviews with them, I show how orchid growing represents such a “hybrid” form of nature (Whatmore 2002). Specifically, the ways in which orchid growers appreciate the novelty of their orchids, care for them, and establish authenticity in orchid growing demonstrates the nuanced ways orchid growing forms a relationship with “nature.”
APA, Harvard, Vancouver, ISO, and other styles
4

Brox, Robin F. "Tinsel Strength and the Orchid Sheaf." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/BroxR2005.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Wraith, Jenna L. "Orchid conservation: Assessing threats and conservation priorities." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/392403.

Full text
Abstract:
Globally, over a million species are threatened with extinction from habitat loss, climate change, over-exploitation as well as other anthropogenic activities. Orchids are particularly at risk in part due to their distinctive ecology including high species diversity, often limited geographic range for many species, and tight ecological relations with specific symbionts. They are the most diverse group of flowering plants with ~28,000 species and are found on all but one continent. However, due to increasing pressures from humans many orchids are threatened with extinction. It is therefore important to assess what is threatening them and where. Therefore, this thesis assesses threats to orchids at a global and continental scale to highlight the most significant threats to orchids, where orchids are threatened and by what, and to prioritise conservation actions and future research. The range and diversity of threats to orchids was globally assessed and mapped using data from the International Union for Conservation of Nature (IUCN) Red List (Chapter 2). For the 442 orchids on the Red List, the most common threats were biological resource use (80% species), agriculture (53%), human intrusion and disturbance (36%) and development (35%) and were most commonly found in Africa (predominantly Madagascar), South and East Asia and South America. These threats often interacted and co-occurred with four major threat syndromes. Understanding threat syndromes is vital for orchid conservation as they can create more consistent conservation planning and help focus efforts on the specific threats in a given region. Globally the scale and extent of tourism and recreation is increasing, including nature-based tourism. As a result, tourism and recreation is increasingly recognised as a threat to plants including orchids. Therefore, the extent and nature of tourism and recreation as a threat to orchids globally was also assessed in more detail using data from the IUCN Red List (Chapter 3). This demonstrated that 149 of the 442 listed orchids were threatened by tourism and recreation including impacts of residential and commercial development for tourism infrastructure (22%), intentional collecting within protected areas (17%), and human intrusion and disturbance from recreational activities (20%). Tourism and recreation threats were severe, impacting many populations of some orchids and causing rapid decline. These findings highlight how tourism and recreation can threaten specific groups of plants in diverse habitats, but particularly in forests and shrublands and these threats often co-occurred as threat syndromes. To better facilitate orchid conservation, a more detailed analysis of geographical patterns in threatened orchids and threats to orchids was conducted at a continental scale using a methodology that could be adapted to other threatened taxa (Chapter 4). By utilising data on threatened orchids from the Australian Government, combined with species occurrence data from the Atlas of Living Australia, the distribution of the most severe threats to orchids in Australia were mapped. This included identifying locations where habitat modification, changing fire regimes, grazing, weeds, tourism and recreation and illegal collection occurred, including where they co-occurred as threat syndromes. This study shows that the loss of native vegetation is a key driver of most threats, while increases within protected areas was associated with an increased threat from tourism and recreation. This study also provides critical information for formulating conservation and management strategies for threatened orchids and other species in a changing environment. To ensure the successful conservation of orchids, researchers need to understand research and conservation priorities at a global scale. Therefore, conservation and research priorities for orchid conservation were assessed (Chapter 5) using data on research publications on orchid conservation from Scopus, data on conservation priorities from the Red List, and species occurrence records from the Global Biodiversity Information Facility (GBIF). This study highlighted the increase in conservation research and important gaps as well as key conservation priorities which were analysed to guide recommendations on future priorities. Based on the results, orchid conservation and research globally should increasingly focus on monitoring population, trends and distributions including the impacts of climate change, ecology, threats and threat mitigation, protection and management of species and their habitats and increasing education and awareness. The research in this thesis demonstrated how orchids are significantly threatened by anthropogenic activities at a global and continental scale including impacts from habitat loss, illegal collecting, tourism and recreation, increased fire regimes and invasive species. However, it is also evident that climate change is underrepresented as a threat to orchids and needs to be considered in future research. These studies highlight the prevalence and importance of threat syndromes and provide novel methods for spatially assessing them. It is evident from these studies that orchid conservation will benefit from global collaboration and focussed conservation priorities.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Environment and Sc
Science, Environment, Engineering and Technology
Full Text
APA, Harvard, Vancouver, ISO, and other styles
6

Abualghaith, Abdulaziz. "Carbon and nitrogen metabolisn in orchid-mycorrhiza associations." Thesis, University of Sheffield, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604555.

Full text
Abstract:
Members of the Orchidales produce dust seeds so lacking in nutrient and carbon reserves that they are dependent upon appropriate fungal partners to supply the essential additional carbon and nutrients required for successful establishment in nature. These plants are thus initially mycoheterotrophic before they normally go on to develop green leaves and become autotrophic as adults. However, at least 210 species of orchid remain fully mycoheterotrophic into adulthood. The metabolic pathways involved in the nitrogen and carbon fluxes from fungus-to -plant in mycoheteratrophic are still poorly understood, but result in characteristic enrichment in 13C and 13N. In this thesis in vitro studies on agar are employed to investigate the effects of different N sources, with and without sugar or cellulose carbon sources on the heterotrophic growth of mycorrhizal orchid seedlings and metabolite pools in the plants and their fungal partners. It is hypothesised that glutamine, a central metabolite in assimilation of mineral by basidiomycete fungi, passes from fungus-to -plant as in traditional models of N assimilation by ectomycorrhizal plants. A range of nitrogen and carbon sources including isotopically labelled 14C and 13C-glucose together with 15N labelled N sources including nitrate, ammonium, ammonium nitrate, glutamine, glycine and arginine were supplied to orchid mycorrhizal fungi in pure culture and to mycorrhizal seedlings of Goodyera repens or Dactylorhiza fuchsii. In three compartment Petri dishes in which the seedlings were grown with their fungal partners colonising the two other compartments, simultaneous additions of DC and 15N tracers provided compelling evidence of fungal assimilatory pathways providing co-transport of C and N into heterotrophic seedlings of G. repens. Nitrate was a better N source than ammonium or amino acids for the plants, and metabolomic analysis showed strong up-regulation of relative abundance of glutamine in the fastest growing plants. The findings presented in this thesis provides strong circumstantial evidence that glutamine serves as a major combined N and C source transported from fungus-to-plant in heterotrophic orchid seedlings.
APA, Harvard, Vancouver, ISO, and other styles
7

Heinänen, E. (Emma). "Kämmekkäkasvien (Orchid aceae) pölytysbiologia ja sen vaikutus lajiutumiseen." Bachelor's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201803071312.

Full text
Abstract:
Orchidaceae -heimo on maailman suurin ja monimuotoisin kukkakasvien ryhmä. Kämmekkäkasvit ovat erityisesti tunnettuja hyvin pitkälle erikoistuneista suhteista pölyttäjien kanssa, ja suuresta huijauspölytteisten lajien määrästä. Huijauspölytteiset lajit eivät tarjoa pölyttäjälle palkintoa pölytyksestä, vaan houkuttelevat pölyttäjät kukkaan muilla avuilla. Huijauspölytteiset kukat voidaan jakaa ravinnon etsinnässä huijaaviin sekä pölyttäjän seksuaalista ja pesänrakennuskäyttäytymistä hyväksikäyttäviin strategioihin. Palkintoa tarjoavat kämmekät palkitsevat yleisimmin medellä ja siitepölyllä. Pölytysstrategioiden on todistettu vaikuttaneen heimon suuren lajimäärän syntyyn, mutta ekologiset prosessit lajiutumisen taustalta ovat hämärän peitossa. Yleisimmät hypoteesit huijauspölytteisten lajien kelpoisuuseduista ovat resurssien säästämishypoteesi ja itsepölytyksen välttämishypoteesi. Myös kämmeköiden populaatioiden pienen tiheyden on arveltu vaikuttavan, sekä rajallisen siitepölyn määrän. Tutkimusten mukaan myös pölyttäjien rajallisella määrällä sekä geneettisellä ajautumisella on ollut suuri merkitys lajiutumiseen.
APA, Harvard, Vancouver, ISO, and other styles
8

Ross, Andrew August. "Population Genetics of the Western Prairie Fringed Orchid." Thesis, North Dakota State University, 2012. https://hdl.handle.net/10365/26725.

Full text
Abstract:
The Western Prairie Fringed Orchid (WPFO) Platanthera praeclara is listed as a federally threatened species in the United States. The habitat of the WPFO is highly fragmented, causing the possibility of genetic isolation among populations. I assessed microsatellite polymorphism in eight WPFO populations using six polymorphic microsatellite markers. High levels of within population genetic diversity were found: 12.5 alleles per locus and mean expected heterozygosity (HE) of 0.622. The genetic structure among the populations was weak; the overall FST value was 0.0692. A mantel test showed no correlation between genetic and geographic distance r = 0.2793 (P = 0.31). The genetic diversity and genetic structure is comparable to other plant species. Significant inbreeding many be occurring as indicated by a FIS value of 0.1903. More studies with the developed markers are necessary over a larger part of the geographic range of WPFOs to determine if other populations are genetically isolated.
Cross Ranch Fellowship Committee
Ted Esslinger
Gary Clambey
APA, Harvard, Vancouver, ISO, and other styles
9

Walsh, Ryan Patrick. "Pollination Ecology and Demography of a Deceptive Orchid." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1372097140.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kent, Oliver. "Transitions from heterotrophy to autotrophy in orchid seedlings." Thesis, University of Sheffield, 2012. http://etheses.whiterose.ac.uk/3344/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Orchid"

1

Wilma, Rittershausen, and Black Peter McKenzie, eds. Orchid growing. 2nd ed. London: Ward Lock, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Expanding your orchid collection. Melbourne: Lothian, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Society, American Orchid. Handbook on orchid culture. Cambridge, Mass: The Society, 1986.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Fundamentals of orchid biology. New York: Wiley, 1992.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Home orchid growing. 4th ed. New York: Simon & Schuster, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Hessayon, D. G. The orchid expert. London: Expert, 2008.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Home orchid growing. 4th ed. New York: Prentice Hall Press, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

James, I. D. The New Zealand orchid grower. Auckland: Lansdowne Press, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Orchid Society of South East Asia., ed. Orchid growing in the tropics. Singapore: Times Editions, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

Cootes, Jim. Philippine native orchid aspecies. Quezon City, Philippines: Katha Pub., 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Orchid"

1

Salunkhe, Dattajirao K., Narayana R. Bhat, and Babasaheb B. Desai. "Orchid." In Postharvest Biotechnology of Flowers and Ornamental Plants, 88–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-73803-6_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Vendrame, Wagner A., and Amir A. Khoddamzadeh. "Orchid Biotechnology." In Horticultural Reviews, 173–228. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119281269.ch4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Arditti, Joseph. "Brown Danube, blue Pacific." In Orchid Biology, 1–29. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Yeung, Edward C., and Sandra K. Law. "Ovule and megagametophyte development in orchids." In Orchid Biology, 31–73. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kuehnle, Adelheid R. "Molecular biology of orchids." In Orchid Biology, 75–115. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Currah, R. S., C. D. Zelmer, S. Hambleton, and K. A. Richardson. "Fungi from orchid mycorrhizas." In Orchid Biology, 117–70. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Ichihashi, Syoichi. "Orchid production and research in Japan." In Orchid Biology, 171–212. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Hew, C. S., J. Arditti, and W. S. Lin. "Three orchids used as herbal medicines in China: an attempt to reconcile Chinese and Western pharmacology." In Orchid Biology, 213–83. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ichihashi, Syoichi. "Research on micropropagation of Cymbidium, nobile-type Dendrobium, and Phalaenopsis in Japan." In Orchid Biology, 285–316. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-2498-2_7.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Smitamana, Prasartporn, and Robert J. McGovern. "Diseases of Orchid." In Handbook of Plant Disease Management, 633–62. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-39670-5_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Orchid"

1

Semiarti, Endang. "Orchid biotechnology for Indonesian orchids conservation and industry." In INVENTING PROSPEROUS FUTURE THROUGH BIOLOGICAL RESEARCH AND TROPICAL BIODIVERSITY MANAGEMENT: Proceedings of the 5th International Conference on Biological Science. Author(s), 2018. http://dx.doi.org/10.1063/1.5050118.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Supnithi, Thepchai, Pisuth Paiboonrat, Marut Buranarach, Asanee Kawtrakul, Setapong Lekawatana, Ath Intalak, Suvichai Sangtien, and Worapot Choptham. "Ontology Based Orchid Knowledge Platform for Knowledge Services in Orchid Cluster." In 2011 Annual SRII Global Conference (SRII). IEEE, 2011. http://dx.doi.org/10.1109/srii.2011.62.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Arwatchananukul, Sujitra, Phasit Charoenkwan, and Dan Xu. "POC: Paphiopedilum Orchid Classifier." In 2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC). IEEE, 2015. http://dx.doi.org/10.1109/icci-cc.2015.7259387.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dessloch, Stefan, Mauricio A. Hernandez, Ryan Wisnesky, Ahmed Radwan, and Jindan Zhou. "Orchid: Integrating Schema Mapping and ETL." In 2008 IEEE 24th International Conference on Data Engineering (ICDE 2008). IEEE, 2008. http://dx.doi.org/10.1109/icde.2008.4497540.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Kongsombut, Korakoch, and Roungsan Chaisricharoen. "Probabilistic growth model for dendrobium orchid." In 2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA). IEEE, 2014. http://dx.doi.org/10.1109/apsipa.2014.7041816.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wang, Wei-Jhen, Chia-Hwa Lee, Chin-Wen Li, Stephen Liao, Fuh-Jyh Jan, and Gou-Jen Wang. "Direct Label Free Detection of Orchid Virus Using a Micro/Nano Hybrid Structured Biosensor." In ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/detc2019-97198.

Full text
Abstract:
Abstract In this study, a label-free detection approach for effective detection of the odontoglossum ringspot virus (ORSV) infected orchids has been developed. We used semiconductor fabrication process to fabricate 1,810 micro/nano hybrid structured sensing electrodes on a 8 inch reclaimed wafer. The self-assembled monolayer (SAM) process was then employed to sequentially modify the electrode surface with 11-mercaptoundecanoic acid (11-MUA), 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide (EDC)/ N-hydroxysuccinimide (NHS), anti-ORSV, and ORSV. EIS was conducted for the ORSV concentration detection. Experimental results demonstrated that the ORSV concentration in a virus infected orchid leaf could be effectively detected. When compared with the ELISA kit, our device possesses a wider linear detection range (0.5–50,000 ng/mL) and a higher sensitivity. The specificity of our device on ORSV detection was also confirmed. Our sensing device retains advantages, such as label-free, lower amounts of the antibody and target sample required, low detection time, and a wider linear detection range. Those results imply the feasibility of our sensing device in field applications.
APA, Harvard, Vancouver, ISO, and other styles
7

Kongsombut, Korakoch, and Roungsan Chaisricharoen. "Real-time advisory service for orchid care." In 2013 13th International Symposium on Communications and Information Technologies (ISCIT). IEEE, 2013. http://dx.doi.org/10.1109/iscit.2013.6645947.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Sani, Maizura Mohd, Suhaili Beeran Kutty, Hasmila Akmar Omar, and Ili Nadia Md Isa. "Classification of orchid species using Neural Network." In 2013 IEEE International Conference on Control System, Computing and Engineering (ICCSCE). IEEE, 2013. http://dx.doi.org/10.1109/iccsce.2013.6720033.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Ariff, A. L. Zul, K. Fatimah, Z. Suhana, I. Akmal Adillah, T. A. B. Tengku Halimatun Sa’adiah, and A. Mohammad Amizi. "Youth perception towards being an orchid entrepreneur." In PROCEEDINGS OF 8TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS ENGINEERING & TECHNOLOGY (ICAMET 2020). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0051511.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Fernandez, L., M. Huerta, G. Sagbay, R. Clotet, and A. Soto. "Sensing climatic variables in a orchid greenhouse." In 2017 International Caribbean Conference on Devices, Circuits and Systems (ICCDCS). IEEE, 2017. http://dx.doi.org/10.1109/iccdcs.2017.7959719.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Orchid"

1

Nikander, P., J. Laganier, and F. Dupont. An IPv6 Prefix for Overlay Routable Cryptographic Hash Identifiers (ORCHID). RFC Editor, April 2007. http://dx.doi.org/10.17487/rfc4843.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

O'Neill, Sharman, Abraham Halevy, and Amihud Borochov. Molecular Genetic Analysis of Pollination-Induced Senescence in Phalaenopsis Orchids. United States Department of Agriculture, 1991. http://dx.doi.org/10.32747/1991.7612837.bard.

Full text
Abstract:
The project investigated the molecular genetic and biochemical basis of pollination-induced senescence of Phalaenopsis flowers. This experimental system offered unique advantages in that senescence is strictly regulated by pollination, providing the basis to experimentally initiate and synchronize senescence in populations of flowers. The postpollination syndrome in the Phalaenopsis orchid system was dissected by investigating the temporal and spatial regulation of ACC synthase gene expression. In the stigma, pollen-borne auxin induces the expression of the auxin-regulated ACC synthase (PS-ACS2) gene, resulting in ACC synthesis within 1 h following pollination. Newly formed ACC is oxidized by basal constitutive ACC oxidase to ethylene, which then induces the expression of the ethylene-regulated ACC synthase(PS-ACS1) and oxidase (ACO1) genes for further autocatalytic production of ethylene. It is speculated that during the 6-h period following pollination, emasculation leads to the production or release of a sensitivity factor that sensitizes the cells of the stigma to ethylene. ACC and ethylene molecules are translocated from the stigma to the labellum and perianth where ethylene induces the expression of PS-ACS1 and ACO1 resulting in an increased production of ACC and ethylene. Organ-localized ethylene is responsible for inrolling and senescence of the labellum and perianth. The regulation of ethylene sensitivity and signal transduction events in pollinated flowers was also investigated. The increase in ethylene sensitivity appeared in both the flower column and the perianth, and was detected as early as 4 h after pollination. The increase in ethylene sensitivity following pollination was not dependent on endogenous ethylene production. Application of linoleic and linoleic acids to Phalaenopsis and Dendrobium flowers enhanced their senescence and promoted ethylene production. Several major lipoxygenase pathway products including JA-ME, traumatic acid, trans-2-hexenal and cis-3-hexenol, also enhanced flower senescence. However, lipoxygenase appears to not be directly involved in the endogenous regulation of pollination-induced Phalaenopsis and Dendrobium flower senescence. The data suggest that short-chain saturated fatty acids may be the ethylene "sensitivity factors" produced following pollination, and that their mode of action involves a decrease in the order of specific regions i the membrane lipid bilayer, consequently altering ethylene action. Examination of potential signal transduction intermediates indicate a direct involvement of GTP-binding proteins, calcium ions and protein phosphorylation in the cellular signal transduction response to ethylene following pollination. Modulations of cytosolic calcium levels allowed us to modify the flowers responsiveness to ethylene.
APA, Harvard, Vancouver, ISO, and other styles
3

Martin, Ian. The Lucas Orchard. Cambridge, MA: National Bureau of Economic Research, November 2011. http://dx.doi.org/10.3386/w17563.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Мінтій, І. С., and С. М. Іванова. Огляд наукометричних баз GOOGLE SCHOLAR та ORCID. ІІТЗН НАПН України, 2021. http://dx.doi.org/10.31812/123456789/5085.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Doty, Kelsie, and Sherry Haar. Sunrise in the Orchard. Ames: Iowa State University, Digital Repository, November 2015. http://dx.doi.org/10.31274/itaa_proceedings-180814-1279.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Carpenter, Brandon, and Nick Howell. Horticulture Research Station Orchard Assessment. Ames: Iowa State University, Digital Repository, 2015. http://dx.doi.org/10.31274/farmprogressreports-180814-543.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Fairhurst, Vanessa, Chieh-Chih Estelle Cheng, Xiaoli Chen, and Cameron Neylon. Better Together: Open new possibilities with Open Infrastructure (APAC time zones). Chair Hideaki Takeda. Crossref, June 2022. http://dx.doi.org/10.13003/xdvu4372.

Full text
Abstract:
Crossref, DataCite, and ORCID work together to provide foundational open infrastructure that is integral to the global research ecosystem. We offer unique, persistent identifiers (PIDs) — Crossref and DataCite DOIs for research outputs and ORCID iDs for people — alongside collecting comprehensive, open metadata that is non-proprietary, accessible, interoperable, and available across borders, disciplines, and time. As sustainable community-driven scholarly infrastructure providers ORCID, Crossref and Datacite, guarantee data provenance and machine-readability. Persistent identifiers combined with open, standardized, and machine-readable metadata enable reliable and robust connections to be made between research outputs, organizations, individuals, and much more, as well as being beneficial to others who build services and tools on top of the open infrastructure we provide making content more discoverable. In this webinar we discuss: - Who we are - What we mean by Open Scholarly Infrastructure - How our organizations work together for the benefit of the scholarly community - How the Principles of Open Scholarly Infrastructure (POSI) help to build trust and accountability as well as ensure we are around for the long term. This is the first of the joint webinar series co-organized by Crossref, DataCite, and ORCID for the Open Science community in the APAC region. The webinar is presented in English and lasts 90 minutes including time for Q&A. This webinar took place on 27 June 2022 at 7am UTC/ 9am CEST / 5pm AEST.
APA, Harvard, Vancouver, ISO, and other styles
8

Becker, Emily. Beyond Fruit: Examining Community in a Community Orchard. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.2624.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Mysore, Santosh, Paul Farrow, Laura Paglione, Laura Schmidt, and Christine Vanderlinden. Ongoing ORCID implementation within pharmaceutical industry: an Open Pharma and GSK Vaccines initiative. Oxford PharmaGenesis, April 2018. http://dx.doi.org/10.21305/ismppus2018.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Mysore, Santosh, Paul Farrow, Laura Paglione, Laura Schmidt, and Christine Vanderlinden. Ongoing ORCID implementation within the pharmaceutical industry: an Open Pharma and GSK Vaccines initiative. Oxford PharmaGenesis, January 2018. http://dx.doi.org/10.21305/ismppeu2018.001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Orchid' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography