Certain aspects of the biology of Watsonia SPP

 

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dc.contributor.advisor Mitchell, D T en_ZA
dc.contributor.author Waher, Ivo Gregor en_ZA
dc.date.accessioned 2016-02-01T10:03:16Z
dc.date.available 2016-02-01T10:03:16Z
dc.date.issued 1974 en_ZA
dc.identifier.citation Waher, I. 1974. Certain aspects of the biology of Watsonia SPP. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/16640
dc.description.abstract The flowering responses of two species of Watsonia (W. humilis and W. tabularis) were studied both in the field and in the laboratory. There was no conclusive evidence that heat treatments directly influenced the flowering response. Instead, it appears that flowering may result from a number of factors such as watering, clearing the soil surface of vegetation and transplantation. The effects of temperature on seed germination were also investigated. 15 - 18° are the optimum temperature conditions for germination although viability is not affected by incubation at temperatures up to 35° C. Carbohydrates in the form of mucilaginous polysaccharide are the major storage reserves of the corms. These polysaccharides as well as the ethanol soluble carbohydrates were determined at different stages in the life cycle of Watsonia spp. by means of gas-liquid and paper chromatography. There was little variation in the levels of cold water soluble polysaccharide at different stages in the vegetative development of the corms, but during seed pod formation the monomer components of these polysaccharides declined. The implications of these results are discussed in relation to the ecology of both W. tabularis and W. humilis. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Botany en_ZA
dc.title Certain aspects of the biology of Watsonia SPP en_ZA
dc.type Thesis / Dissertation en_ZA
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Biological Sciences en_ZA
dc.type.qualificationlevel Masters en_ZA
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image


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