Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus

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dc.contributor.advisorBond, William Jen_ZA
dc.contributor.advisorStock, William Den_ZA
dc.contributor.authorLe Roux, Debbie Jeanetteen_ZA
dc.date.accessioned2016-03-28T14:43:25Z
dc.date.available2016-03-28T14:43:25Z
dc.date.issued1993en_ZA
dc.description.abstractThe expansion of Eucalyptus plantations to supply timber for an increasing population in South Africa will result in a great reduction in the country's run-off water. If Eucalyptus continues to be the source of timber in South Africa, the selection of more water use efficient species for planting in existing and new areas has to be implemented. An understanding of the physiological factors ruling growth and water use efficiency in Eucalyptus is needed to develop selection criteria for improved water use efficiency and harvestable stem production under a limited water supply. This study investigated the effects of soil moisture availability on the growth and water use efficiency of 6 commercial clones of Eucalyptus commonly grown in South Africa with the aim of determining the following: (i) The extent of clonal variation in growth, dry mass allocation patterns, water use efficiency and the water cost of wood production at 16 months after planting. (ii) The influence of plant physiological traits such as patterns of dry mass allocation, canopy leaf area, leaf canopy density, specific leaf area, foliar nitrogen concentration and instantaneous rates of photosynthesis and transpiration, on growth, water use efficiency and the water cost of wood production. (iii) The complications associated with sampling for stable carbon isotope ratios (δ¹³C) within a eucalypt canopy and the potential use of δ¹³C in plant tissues as a tool for ranking clonal water use efficiencies.en_ZA
dc.identifier.apacitationLe Roux, D. J. (1993). <i>Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/18327en_ZA
dc.identifier.chicagocitationLe Roux, Debbie Jeanette. <i>"Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1993. http://hdl.handle.net/11427/18327en_ZA
dc.identifier.citationLe Roux, D. 1993. Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Le Roux, Debbie Jeanette AB - The expansion of Eucalyptus plantations to supply timber for an increasing population in South Africa will result in a great reduction in the country's run-off water. If Eucalyptus continues to be the source of timber in South Africa, the selection of more water use efficient species for planting in existing and new areas has to be implemented. An understanding of the physiological factors ruling growth and water use efficiency in Eucalyptus is needed to develop selection criteria for improved water use efficiency and harvestable stem production under a limited water supply. This study investigated the effects of soil moisture availability on the growth and water use efficiency of 6 commercial clones of Eucalyptus commonly grown in South Africa with the aim of determining the following: (i) The extent of clonal variation in growth, dry mass allocation patterns, water use efficiency and the water cost of wood production at 16 months after planting. (ii) The influence of plant physiological traits such as patterns of dry mass allocation, canopy leaf area, leaf canopy density, specific leaf area, foliar nitrogen concentration and instantaneous rates of photosynthesis and transpiration, on growth, water use efficiency and the water cost of wood production. (iii) The complications associated with sampling for stable carbon isotope ratios (δ¹³C) within a eucalypt canopy and the potential use of δ¹³C in plant tissues as a tool for ranking clonal water use efficiencies. DA - 1993 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1993 T1 - Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus TI - Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus UR - http://hdl.handle.net/11427/18327 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/18327
dc.identifier.vancouvercitationLe Roux DJ. Growth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptus. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1993 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/18327en_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.titleGrowth, water use efficiency and stable carbon isotopes in commercial clones of Eucalyptusen_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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