Aspects of coastal fynbos phenology

 

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dc.contributor.advisor Moll, Eugene J en_ZA
dc.contributor.author Sommerville, Jacqueline Elizabeth Melville en_ZA
dc.date.accessioned 2016-05-09T09:02:48Z
dc.date.available 2016-05-09T09:02:48Z
dc.date.issued 1983 en_ZA
dc.identifier.citation Sommerville, J. 1983. Aspects of coastal fynbos phenology. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/19523
dc.description.abstract This thesis comprises three papers on different aspects of the phenology of several south western Cape coastal fynbos species, with a general introduction and conclusion I inking the three. The introduction discusses factors relating to the occurrence of summer growth in some Australian heath and Cape fynbos species. The first paper deals with the responses of the stem xylem pressure potential of two species to seasonal moisture changes in three soils. The results show that L. parile experienced little or no water stress throughout the investigation. The decreasing spring-summer potentials measured in T. punctatus suggest considerable water stress in this species. The observed differences can be explained in terms of species rooting depth and soil water-holding capacity. The second paper investigates patterns of seasonal shoot or culm growth in 11 species, in relation to past and present climatic factors and seasonal nutrient availability. The results show that other factors such as root depth and extent, plant age and water-use, and soil water-holding capacity affect the timing of shoot or culm growth in some species. In the final paper the seasonality of reproductive activity is discussed in relation to the seasonality of vegetative growth and to biotic and abiotic environmental factors. Reproductive activity appears to have little effect on the growth of individual shoots or culms. More research is needed to determine the effects of biotic pollinators, dispersers and predators as well as temperature, photoperiod and soil moisture on the seasonality of reproductive activity. In the conclusions summer growth is discussed in relation to water stress, seasonal availability of nutrients and to plant characteristics such as root depth and age. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Botany en_ZA
dc.title Aspects of coastal fynbos phenology en_ZA
dc.type Master Thesis
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
dc.type.qualificationname MSc en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Sommerville, J. E. M. (1983). <i>Aspects of coastal fynbos phenology</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/19523 en_ZA
dc.identifier.chicagocitation Sommerville, Jacqueline Elizabeth Melville. <i>"Aspects of coastal fynbos phenology."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1983. http://hdl.handle.net/11427/19523 en_ZA
dc.identifier.vancouvercitation Sommerville JEM. Aspects of coastal fynbos phenology. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1983 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/19523 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Sommerville, Jacqueline Elizabeth Melville AB - This thesis comprises three papers on different aspects of the phenology of several south western Cape coastal fynbos species, with a general introduction and conclusion I inking the three. The introduction discusses factors relating to the occurrence of summer growth in some Australian heath and Cape fynbos species. The first paper deals with the responses of the stem xylem pressure potential of two species to seasonal moisture changes in three soils. The results show that L. parile experienced little or no water stress throughout the investigation. The decreasing spring-summer potentials measured in T. punctatus suggest considerable water stress in this species. The observed differences can be explained in terms of species rooting depth and soil water-holding capacity. The second paper investigates patterns of seasonal shoot or culm growth in 11 species, in relation to past and present climatic factors and seasonal nutrient availability. The results show that other factors such as root depth and extent, plant age and water-use, and soil water-holding capacity affect the timing of shoot or culm growth in some species. In the final paper the seasonality of reproductive activity is discussed in relation to the seasonality of vegetative growth and to biotic and abiotic environmental factors. Reproductive activity appears to have little effect on the growth of individual shoots or culms. More research is needed to determine the effects of biotic pollinators, dispersers and predators as well as temperature, photoperiod and soil moisture on the seasonality of reproductive activity. In the conclusions summer growth is discussed in relation to water stress, seasonal availability of nutrients and to plant characteristics such as root depth and age. DA - 1983 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1983 T1 - Aspects of coastal fynbos phenology TI - Aspects of coastal fynbos phenology UR - http://hdl.handle.net/11427/19523 ER - en_ZA


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