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 10 of 10 for “"Floral scent"”.
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Taxonomical use of floral scent data in apomictic taxa of Hieracium and Sorbus derived from hybridization
Scent investigations are mainly carried out in the context of the ecological function of scent components for pollinator attraction, to study their geographical variability or their evolution. In contrast, profiles of inflorescence scent compounds were rarely used for phylogenetic analyses and …
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Importance of floral scent compounds for the interaction between Silene latifolia (Caryophyllaceae) and the nursery pollinator Hadena bicruris (Lepidoptera: Noctuidae)
In the present study, the role of floral volatiles for the interaction between the nocturnal Caryophyllaceae Silene latifolia, and the noctuid moth Hadena bicruris was determined. This insect-plant relationship is one of the known nursery pollination systems, where pollinators reproduce within the …
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Floral Scent in Salix L. and the Role of Olfactory and Visual Cues for Pollinator Attraction of Salix caprea L.
The chemical composition of floral scent of different Salix species as well as its inter- and intraspecific variability were analysed. The role of floral scent for attracting flower visitors was examined in S. caprea by means of electroantennographic studies and bioassays. The relevance of …
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The reproductive biology and ecology of Colchicum (Colchicaceae) in southern Africa
… Johnson et al. (2001), to test the importance of floral scent for attraction of rodent pollinators, and to investigate the factors that influence seed set in populations.
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Olfactory responses of Dasineura Dielsi Rübsaamen (Diptera: Cecidomyiidae) females to host plant volatiles
… hypotheses: 1) the midges respond to the scent of A. cyclops to locate suitable oviposition sites; 2) the floral scent of A. melanoxylon, A. longifolia and A. saligna resembles that of A. cyclops and this explains the insects’use of these plants too; and 3) the floral scents of African …
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Bionomy and host plant finding in oil collecting bees
… About 40 % of the species in this genus secrete floral oils and these species are almost exclusively pollinated by oil collecting bees of the genus Macropis, whereas non-oil species in this genus are regarded as being pollinated by generalised bees. In the present work, I focused on (i) the …
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The pollination and scent ecology of selected Cape milkweeds (Apocynaceae: Asclepiadoideae)
… (Asclepiadoideae, Apocynaceae) possess a complex floral morphology that has made them prime candidates for investigating the evolution of plant-pollinator relationships. In South Africa, the pollination ecology of this diverse group has largely been focused in the summer rainfall region. This …
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The Role of Visual and Olfactory Cues in Host Recognition for the Specialist Bee Genus Diadasia, and Implications for the Evolution of Host Choice
… non-hosts are highly dissimilar in terms of scent and visual appearance. I determined the compounds associated with the scent of Malvaceae and Cactaceae host flowers of North American Diadasia. I also evaluated visual cues for these flowers by measuring their full spectrum of reflected …
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Effects of systemic fungicides on floral attributes, pollination and fruit aroma in strawberries
… contact with the substance and contaminate floral rewards for pollinators, thus directly impairing the pollinators’ health. Also, the treated plants can be affected by the fungicide, changing their metabolism and/or photosynthesis. It can therefore be expected that the plant-pollinator …