Certain aspects of the biology of Watsonia SPP

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dc.contributor.advisorMitchell, D Ten_ZA
dc.contributor.authorWaher, Ivo Gregoren_ZA
dc.date.accessioned2016-02-01T10:03:16Z
dc.date.available2016-02-01T10:03:16Z
dc.date.issued1974en_ZA
dc.description.abstractThe 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.identifier.apacitationWaher, I. G. (1974). <i>Certain aspects of the biology of Watsonia SPP</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/16640en_ZA
dc.identifier.chicagocitationWaher, Ivo Gregor. <i>"Certain aspects of the biology of Watsonia SPP."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1974. http://hdl.handle.net/11427/16640en_ZA
dc.identifier.citationWaher, I. 1974. Certain aspects of the biology of Watsonia SPP. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Waher, Ivo Gregor AB - 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. DA - 1974 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1974 T1 - Certain aspects of the biology of Watsonia SPP TI - Certain aspects of the biology of Watsonia SPP UR - http://hdl.handle.net/11427/16640 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/16640
dc.identifier.vancouvercitationWaher IG. Certain aspects of the biology of Watsonia SPP. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1974 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/16640en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBotanyen_ZA
dc.titleCertain aspects of the biology of Watsonia SPPen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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