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You searched for subject:(Orchids Reproduction). Showing records 1 – 3 of 3 total matches.

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1. Montakarn Pimsen. Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification .

Degree: คณะวิทยาศาสตร์ ภาควิชาชีววิทยา, 2014, Prince of Songkla University

Subjects/Keywords: Orchids Reproduction; Plant Tissue Culture

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Pimsen, M. (2014). Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification . (Thesis). Prince of Songkla University. Retrieved from http://kb.psu.ac.th/psukb/handle/2010/10008

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Pimsen, Montakarn. “Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification .” 2014. Thesis, Prince of Songkla University. Accessed November 13, 2019. http://kb.psu.ac.th/psukb/handle/2010/10008.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Pimsen, Montakarn. “Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification .” 2014. Web. 13 Nov 2019.

Vancouver:

Pimsen M. Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification . [Internet] [Thesis]. Prince of Songkla University; 2014. [cited 2019 Nov 13]. Available from: http://kb.psu.ac.th/psukb/handle/2010/10008.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pimsen M. Cryopreservation of protocorms of grammatophyllum speciosum blume by vitrification and encapsulation/vitrification . [Thesis]. Prince of Songkla University; 2014. Available from: http://kb.psu.ac.th/psukb/handle/2010/10008

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Massey University

2. Lehnebach, Carlos A. Pollination ecology of New Zealand orchids.

Degree: MS, Ecology, 2002, Massey University

The New Zealand orchid flora comprises twenty-five genera and at least 100 species occurring throughout the country. Although the number of endemic species is high (69%) only four genera are endemic to New Zealand. The main physical threats to orchid survival in New Zealand are habitat destruction, modification and fragmentation. The effect of the disruption of interactions with their pollinators has never been considered. This study concentrates on this mutualistic interaction, by assessing the breeding system, pollination syndromes and pollinator-dependence of four widespread terrestrial (Gastrodia cunninghamii, Thelymitra longifolia, Pterostylis alobula and P. patens) and four widespread epiphytic orchids (Earina autumnalis, E. aestivalis, E. mucronata and Winika cunninghamii) occurring in the southern portion of the North Island. In order to determine the breeding system and the presence of self-incompatibility, hand-pollination treatments were conducted in all eight orchid species during the flowering seasons of 2001 and 2002. Pollen grains and ovules numbers, pollen:ovule ratio and presence of floral scent glands were assessed. In those nectariferous species (E. autumnalis, E. aestivalis, E. mucronata and W. cunninghamii), the nectar standing crop was determined using the anthrone colorimetric assay for total carbohydrates. The activity of pollinator was observed both in the field and in captivity. Insects observed foraging in these orchids were identified and ranked according to their likely pollination effectiveness. Finally, measurements of pollination success and pollinia removal and deposition were used to assess whether fruit-set is pollen limited in these species and explore the effect contrasting rewarding strategies (nectar v/s deception) has on the pollination success of these orchids. Pollination treatments in three terrestrial (T. longifolia, P. alobula and P. patens) and two epiphytic (E. autumnalis and E. mucronata) orchids confirmed the absence of genetic incompatibility. Despite these five orchids being self-compatible, their reproduction relies on contrasting reproductive strategies. T. longifolia is predominantly self-pollinated, whereas Pterostylis and Earina species are incapable of autonomous selfing and completely dependent on pollinators. The epiphytic species E. aestivalis and W. cunninghamii are partially self-incompatible and also completely dependent on pollinators. Agamospermy is likely to occur in G. cunninghamii but not involved in seed-production in any of the remaining seven orchids. Both terrestrial and epiphytic species showed a positive reaction to neutral red except E. autumnalis. This indicated the presence of scent glands, mainly located around the column, lip and sepal tips. Pollen:ovule ratios calculated for these species ranged from 20:1 in E. mucronata and E. aestivalis to 320: 1 in P. alobula. Of the four terrestrial orchids studied, insect visitation was observed only in P. alobula. This orchid is pollinated by male fungus gnats of the genus Zygomyia (Diptera:…

Subjects/Keywords: North Island New Zealand; Orchids; Pollination insects; Reproduction

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Lehnebach, C. A. (2002). Pollination ecology of New Zealand orchids. (Masters Thesis). Massey University. Retrieved from http://hdl.handle.net/10179/11113

Chicago Manual of Style (16th Edition):

Lehnebach, Carlos A. “Pollination ecology of New Zealand orchids.” 2002. Masters Thesis, Massey University. Accessed November 13, 2019. http://hdl.handle.net/10179/11113.

MLA Handbook (7th Edition):

Lehnebach, Carlos A. “Pollination ecology of New Zealand orchids.” 2002. Web. 13 Nov 2019.

Vancouver:

Lehnebach CA. Pollination ecology of New Zealand orchids. [Internet] [Masters thesis]. Massey University; 2002. [cited 2019 Nov 13]. Available from: http://hdl.handle.net/10179/11113.

Council of Science Editors:

Lehnebach CA. Pollination ecology of New Zealand orchids. [Masters Thesis]. Massey University; 2002. Available from: http://hdl.handle.net/10179/11113


University of Florida

3. Whitten, William Mark, 1954- ( Dissertant ). Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama.

Degree: 1985, University of Florida

Species of the genus Gonqora (Stanhopeinae: Orchidaceae) are pollinated by fragrance-collecting male euglossine bees (Apidae: Euglossini) . The G. quinquenervis complex contains many species and varieties that differ mainly in flower odor, color, lip morphology, and pollinators. Floral fragrances and pollinators of Gonqora quinquenervis , G. tricolor , and G. gibba were studied at several sites in central Panama. Pollinators were observed in the field. Floral fragrances of 144 plants were analyzed using gas chromatography/mass spectrometry. Each morphological species produces a qualitatively distinct fragrance that attracts a unique set of pollinators. Variation also exists within species. Principal component analysis and cluster analysis reveal two fragrance taxa within both G. tricolor and within G. quinquenervis . Both taxa of G. tricolor attract the same pollinator. The two taxa of G. quinquenervis attract different pollinators and appear to be reproductively isolated sibling species. Floral fragrances are useful characters in distinguishing ethologically-isolated sibling species of euglossinepollinated orchids.

Subjects/Keywords: Acetates; Bees; Floral fragrances; Flowers; Inflorescences; Monoterpenes; Pollination; Pollinators; Species; Taxa; Botany thesis Ph. D; Orchids  – Panama; Orchids  – Reproduction; Pollination by insects

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Whitten, William Mark, 1. (. D. ). (1985). Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama. (Thesis). University of Florida. Retrieved from http://ufdc.ufl.edu/UF00099343

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Whitten, William Mark, 1954- ( Dissertant ). “Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama.” 1985. Thesis, University of Florida. Accessed November 13, 2019. http://ufdc.ufl.edu/UF00099343.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Whitten, William Mark, 1954- ( Dissertant ). “Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama.” 1985. Web. 13 Nov 2019.

Vancouver:

Whitten, William Mark 1(D). Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama. [Internet] [Thesis]. University of Florida; 1985. [cited 2019 Nov 13]. Available from: http://ufdc.ufl.edu/UF00099343.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Whitten, William Mark 1(D). Variation in floral fragrances and pollinators in the Gongora quinquenervis complex (Orchidaceae) in central Panama. [Thesis]. University of Florida; 1985. Available from: http://ufdc.ufl.edu/UF00099343

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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