Exploring Pedagogies that teachers draw on to teach reading in Grade 10 English First Additional Language inclusive classes
- Authors: Ndlovu, Sheillah
- Date: 2024-10-11
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/463746 , vital:76437
- Description: This qualitative, interpretive study explored the pedagogies teachers drew on to teach reading in Grade 10 English First Additional Language inclusive classes. Over the years, children with learning difficulties have been excluded from formal learning and placed in special schools. However, the transformation through inclusive education allows learners with learning difficulties to be enrolled in mainstream schools. Unfortunately, mainstream teachers were not trained to address learning difficulties. It is for this reason that this study explored the pedagogies that teachers drew on to teach reading through an exploratory case study of five teachers and grade 10 learners, noting responses of learners with learning difficulties at one school in John Taolo Gaetsewe (JTG) district in Northern Cape. This study was guided by Sen’s capability approach. Semi-structured interviews, focus group interviews, and non-participant observations were used to collect data on the pedagogies teachers draw on to teach reading in inclusive classes and learners' views on how they want to be taught reading. The collected data was analysed through a thematic data analysis approach with the hope that the findings will help to develop and enrich teachers in teaching reading in inclusive classes to engage all learners. Findings revealed that the participating teachers drew from various pedagogies such as Reading to Learn, Establishing, Maintaining, and Consolidating, and Question-Answer- Relationship. The similarities among these pedagogies are their repetitive nature and that they provide maximum opportunities for learners with various needs, abilities, and challenges to succeed. The teachers’ self-developed strategies were influenced by the need to promote Ubuntu and collaborative learning. Knowing learners and their weaknesses was key to developing strategies. Teachers can draw from various pedagogies to teach reading in an inclusive class. This study recommends using multimodal texts, compulsory inclusive education during initial teacher education, and combined use of pedagogies. , Thesis (MEd) -- Faculty of Education, Institute for the Study of Englishes of Africa, 2024
- Full Text:
- Date Issued: 2024-10-11
- Authors: Ndlovu, Sheillah
- Date: 2024-10-11
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/463746 , vital:76437
- Description: This qualitative, interpretive study explored the pedagogies teachers drew on to teach reading in Grade 10 English First Additional Language inclusive classes. Over the years, children with learning difficulties have been excluded from formal learning and placed in special schools. However, the transformation through inclusive education allows learners with learning difficulties to be enrolled in mainstream schools. Unfortunately, mainstream teachers were not trained to address learning difficulties. It is for this reason that this study explored the pedagogies that teachers drew on to teach reading through an exploratory case study of five teachers and grade 10 learners, noting responses of learners with learning difficulties at one school in John Taolo Gaetsewe (JTG) district in Northern Cape. This study was guided by Sen’s capability approach. Semi-structured interviews, focus group interviews, and non-participant observations were used to collect data on the pedagogies teachers draw on to teach reading in inclusive classes and learners' views on how they want to be taught reading. The collected data was analysed through a thematic data analysis approach with the hope that the findings will help to develop and enrich teachers in teaching reading in inclusive classes to engage all learners. Findings revealed that the participating teachers drew from various pedagogies such as Reading to Learn, Establishing, Maintaining, and Consolidating, and Question-Answer- Relationship. The similarities among these pedagogies are their repetitive nature and that they provide maximum opportunities for learners with various needs, abilities, and challenges to succeed. The teachers’ self-developed strategies were influenced by the need to promote Ubuntu and collaborative learning. Knowing learners and their weaknesses was key to developing strategies. Teachers can draw from various pedagogies to teach reading in an inclusive class. This study recommends using multimodal texts, compulsory inclusive education during initial teacher education, and combined use of pedagogies. , Thesis (MEd) -- Faculty of Education, Institute for the Study of Englishes of Africa, 2024
- Full Text:
- Date Issued: 2024-10-11
Dancing with(in) possibilities: emerging public and convivial pedagogies for ecological citizenship
- Authors: Skerrit, Hayley Frances
- Date: 2024-04-05
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/436510 , vital:73278
- Description: This research project explores ways in which ecological citizenship can be stimulated through collaborative public pedagogy and transgressive learning (t-learning) processes. This research identifies ‘places’ of innovation to cover sections that would usually be described in terms of ‘problem statement’, ‘research focus’, ‘intended outcomes / main contribution’ and ‘theory and methodology’. The Place of Worry is identified through the triple C Crisis (Covid, Capitalism and Climate-Change) which reveal the disconnect to the diverse ecologies (both social and natural) that sustain us. The Place of Possibility demonstrates that through ecological citizenship we can begin to absent absences (De Sousa Santos, 2016) and transform into an embodied response to the triple C crisis. The Place of Emergence transforms these possibilities into practice by demonstrating the place between the worry and the possibility allows for an emergence of a new kind of solution, referred to as the third space within this thesis. The Place of Process delves into the t-learning stories that emerged through research creation and works with iterative feedback and cycles of creation. The unfolding of this t-learning project is guided by the use of metaphor and symbolism as a figuration of macro- and microscopic interactions within these learning fields/ecosystems. Symbolic figuration and speculative metaphor are valuable in this thesis and in my own collaborative meaning-making endeavour as they offer translation protocols for when language fails to embody, the rich embodied experience of this form of learning. The embodiment of this work will help to create restorative care practices through transgressive learning (Lotz-Sisitka et al., 2016) and research creation (Manning, 2016). The study has a particular focus on the emergence of identities and onto-epistemological orientation within the social learning journey towards ecological citizenship and the various ways in which they can be embodied to enable public pedagogy. , Thesis (MEd) -- Faculty of Education, Secondary and Post School Education, 2024
- Full Text:
- Date Issued: 2024-04-05
- Authors: Skerrit, Hayley Frances
- Date: 2024-04-05
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/436510 , vital:73278
- Description: This research project explores ways in which ecological citizenship can be stimulated through collaborative public pedagogy and transgressive learning (t-learning) processes. This research identifies ‘places’ of innovation to cover sections that would usually be described in terms of ‘problem statement’, ‘research focus’, ‘intended outcomes / main contribution’ and ‘theory and methodology’. The Place of Worry is identified through the triple C Crisis (Covid, Capitalism and Climate-Change) which reveal the disconnect to the diverse ecologies (both social and natural) that sustain us. The Place of Possibility demonstrates that through ecological citizenship we can begin to absent absences (De Sousa Santos, 2016) and transform into an embodied response to the triple C crisis. The Place of Emergence transforms these possibilities into practice by demonstrating the place between the worry and the possibility allows for an emergence of a new kind of solution, referred to as the third space within this thesis. The Place of Process delves into the t-learning stories that emerged through research creation and works with iterative feedback and cycles of creation. The unfolding of this t-learning project is guided by the use of metaphor and symbolism as a figuration of macro- and microscopic interactions within these learning fields/ecosystems. Symbolic figuration and speculative metaphor are valuable in this thesis and in my own collaborative meaning-making endeavour as they offer translation protocols for when language fails to embody, the rich embodied experience of this form of learning. The embodiment of this work will help to create restorative care practices through transgressive learning (Lotz-Sisitka et al., 2016) and research creation (Manning, 2016). The study has a particular focus on the emergence of identities and onto-epistemological orientation within the social learning journey towards ecological citizenship and the various ways in which they can be embodied to enable public pedagogy. , Thesis (MEd) -- Faculty of Education, Secondary and Post School Education, 2024
- Full Text:
- Date Issued: 2024-04-05
High-resolution hydraulic modelling as an approach to planning rehabilitation interventions in unchanneled valley-bottom palmiet wetlands: a case study of the Kromme River
- Authors: Langner, Wiebke
- Date: 2023-10-13
- Subjects: Hydraulic models , Prionium serratum , Wetland conservation South Africa Kromme River (Eastern Cape) , LiDAR , Fluvial geomorphology
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424610 , vital:72168
- Description: This study employs high-resolution hydraulic modelling techniques to inform the planning of rehabilitation interventions in unchanneled valley-bottom palmiet wetlands, using the upper Kromme River wetlands as a case study. It investigates the impact of geomorphic processes on the morphology of the valley, how changes in valley morphology affect the flow characteristics (velocity, stream power, depth) of the river, and how these changes affect the geomorphic dynamics of the wetlands. An aerial LiDAR survey was conducted for a 23km-long reach of the upper Kromme River where the wetlands are situated. A high-resolution (5 m) DTM was created from the LiDAR data to examine the valley morphology. Focusing on three major wetland basins, the relationship between valley morphology and geomorphic processes was examined using high-resolution imagery that accompanied the LiDAR survey and Google Satellite imagery. The hydraulic modelling software HEC-RAS was used to investigate the spatial variation in velocity, stream power, and water depth down the surveyed length of the river. The model outputs provide insight into the effect of valley morphology on flow characteristics. The river appears to have a graded longitudinal profile, such that there is a systematic reduction in slope down its length. Water flowing down the river works, through the processes of erosion and deposition, to control the longitudinal slope, channel planform, and geometry to create a valley with a gentle longitudinal slope (approximately 1%) and a broad, near-horizontal valley-bottom in the mountainous landscape of the Cape Fold Mountains. The overall form of the Kromme River valley and wetlands is primarily a consequence of repeated cycles of cutting and filling. Tributary alluvial fans control the initiation of gully erosion in the wetlands, but their effect is diminished in a downstream direction. Despite a 10-fold increase in discharge down the 23km length of river for a given flood magnitude, there is no significant increase in flow velocity, stream power, or depth in a downstream direction. Consequently, the kinetic energy of the water in the lower wetland basin is surprisingly low. These conditions favour the establishment of palmiet. Flows in eroded reaches are much higher than in non-eroded reaches where discharge is spread across a broad valley bottom. In terms of palmiet establishment and regeneration, this means that areas dominated by depositional processes are best suited to the establishment of palmiet. Based on this information, optimal sites to trial new wetland rehabilitation strategies that employ palmiet were selected. This work supports the importance of understanding the role of geomorphology in wetland structure and dynamics when approaching wetland rehabilitation and is likely to be more sympathetic to natural processes than current interventions. , Thesis (MSc) -- Faculty of Science, Geography, 2023
- Full Text:
- Date Issued: 2023-10-13
- Authors: Langner, Wiebke
- Date: 2023-10-13
- Subjects: Hydraulic models , Prionium serratum , Wetland conservation South Africa Kromme River (Eastern Cape) , LiDAR , Fluvial geomorphology
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/424610 , vital:72168
- Description: This study employs high-resolution hydraulic modelling techniques to inform the planning of rehabilitation interventions in unchanneled valley-bottom palmiet wetlands, using the upper Kromme River wetlands as a case study. It investigates the impact of geomorphic processes on the morphology of the valley, how changes in valley morphology affect the flow characteristics (velocity, stream power, depth) of the river, and how these changes affect the geomorphic dynamics of the wetlands. An aerial LiDAR survey was conducted for a 23km-long reach of the upper Kromme River where the wetlands are situated. A high-resolution (5 m) DTM was created from the LiDAR data to examine the valley morphology. Focusing on three major wetland basins, the relationship between valley morphology and geomorphic processes was examined using high-resolution imagery that accompanied the LiDAR survey and Google Satellite imagery. The hydraulic modelling software HEC-RAS was used to investigate the spatial variation in velocity, stream power, and water depth down the surveyed length of the river. The model outputs provide insight into the effect of valley morphology on flow characteristics. The river appears to have a graded longitudinal profile, such that there is a systematic reduction in slope down its length. Water flowing down the river works, through the processes of erosion and deposition, to control the longitudinal slope, channel planform, and geometry to create a valley with a gentle longitudinal slope (approximately 1%) and a broad, near-horizontal valley-bottom in the mountainous landscape of the Cape Fold Mountains. The overall form of the Kromme River valley and wetlands is primarily a consequence of repeated cycles of cutting and filling. Tributary alluvial fans control the initiation of gully erosion in the wetlands, but their effect is diminished in a downstream direction. Despite a 10-fold increase in discharge down the 23km length of river for a given flood magnitude, there is no significant increase in flow velocity, stream power, or depth in a downstream direction. Consequently, the kinetic energy of the water in the lower wetland basin is surprisingly low. These conditions favour the establishment of palmiet. Flows in eroded reaches are much higher than in non-eroded reaches where discharge is spread across a broad valley bottom. In terms of palmiet establishment and regeneration, this means that areas dominated by depositional processes are best suited to the establishment of palmiet. Based on this information, optimal sites to trial new wetland rehabilitation strategies that employ palmiet were selected. This work supports the importance of understanding the role of geomorphology in wetland structure and dynamics when approaching wetland rehabilitation and is likely to be more sympathetic to natural processes than current interventions. , Thesis (MSc) -- Faculty of Science, Geography, 2023
- Full Text:
- Date Issued: 2023-10-13
The development of a novel plant-based biomaterial scaffold for tissue engineering applications
- Authors: Mamphey, Maame Nicole
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/365223 , vital:65718
- Description: Thesis embargoed. Possible release date set for early 2025. , Thesis (MSc) -- Faculty of Science, Biotechnology Innovation Centre, 2022
- Full Text:
- Date Issued: 2022-10-14
- Authors: Mamphey, Maame Nicole
- Date: 2022-10-14
- Subjects: Uncatalogued
- Language: English
- Type: Academic theses , Master's theses , text
- Identifier: http://hdl.handle.net/10962/365223 , vital:65718
- Description: Thesis embargoed. Possible release date set for early 2025. , Thesis (MSc) -- Faculty of Science, Biotechnology Innovation Centre, 2022
- Full Text:
- Date Issued: 2022-10-14
The adoption of the twin peaks model in the regulation of South African financial markets : a comparative analysis.
- Marange, Patience https://orcid.org/ 0000-0003-4405-2702
- Authors: Marange, Patience https://orcid.org/ 0000-0003-4405-2702
- Date: 2021-09
- Subjects: Financial services industry , Financial services industry--Law and legislation
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21278 , vital:48175
- Description: Over two decades ago, a number of countries have changed their financial regulatory models. The growing complexity of financial products, the increasing challenge of regulating large financial conglomerates, and the repercussions of the 2008 Global Financial Crisis, amongst other factors, have made regulatory reform a key priority for many economies. A move towards the Twin Peaks model of financial regulation has been one of the trends in recent years. This model sees regulation split into two broad functions which are market conduct regulation and prudential regulation. South Africa adopted the Twin Peaks financial regulatory model in 2017 as a way of strengthening its financial regulatory model. By adopting the Twin Peaks model, South Africa has become the eighth and the first developing country to adopt the financial regulatory model. The adoption of the Twin Peaks financial regulatory model in South Africa was mainly inspired by the effects of the 2008 Global Financial Crisis. This study undertakes a comparison of the Twin Peaks model structure in South Africa with the structure of its counterparts, which are Australia, United Kingdom and the Netherlands. In doing so, the study identifies the strengths and possible weaknesses of the model in South Africa. The study discusses the extent to which the South African Twin Peaks model reflects international experience. The study traces the evolution of the financial markets and its regulation. It also delves into the main models of the regulation of financial services industry including the Twin Peaks model, which is the focus of the study. The rationale of South Africa’s adoption of the Twin Peaks model is also considered. The Twin Peaks model was introduced in South Africa through the enactment of the Financial Sector Regulatory Act. This legislation reveals that South Africa has drawn increasingly on international experience, particularly the structural design and the cooperation and collaboration of the regulators. It also reveals similarities, notable differences as well as characteristics that might be regarded as unique to South Africa. The similarities reveal that the South African Twin Peaks greatly aligns with that of its counterparts. This is exemplified through the cooperation and coordination between the regulators and the relationship between the regulators and the government amongst others. The study explores insights and lessons to South Africa which can be learnt from its counterparts like the need for effective coordination amongst the Twin Peak regulators. Thereafter, the study puts forward recommendations for reform, which can enable the effective implementation of the Twin Peaks financial regulatory architecture. , Thesis (MA) (Laws) -- University of Fort Hare, 2021
- Full Text:
- Date Issued: 2021-09
- Authors: Marange, Patience https://orcid.org/ 0000-0003-4405-2702
- Date: 2021-09
- Subjects: Financial services industry , Financial services industry--Law and legislation
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21278 , vital:48175
- Description: Over two decades ago, a number of countries have changed their financial regulatory models. The growing complexity of financial products, the increasing challenge of regulating large financial conglomerates, and the repercussions of the 2008 Global Financial Crisis, amongst other factors, have made regulatory reform a key priority for many economies. A move towards the Twin Peaks model of financial regulation has been one of the trends in recent years. This model sees regulation split into two broad functions which are market conduct regulation and prudential regulation. South Africa adopted the Twin Peaks financial regulatory model in 2017 as a way of strengthening its financial regulatory model. By adopting the Twin Peaks model, South Africa has become the eighth and the first developing country to adopt the financial regulatory model. The adoption of the Twin Peaks financial regulatory model in South Africa was mainly inspired by the effects of the 2008 Global Financial Crisis. This study undertakes a comparison of the Twin Peaks model structure in South Africa with the structure of its counterparts, which are Australia, United Kingdom and the Netherlands. In doing so, the study identifies the strengths and possible weaknesses of the model in South Africa. The study discusses the extent to which the South African Twin Peaks model reflects international experience. The study traces the evolution of the financial markets and its regulation. It also delves into the main models of the regulation of financial services industry including the Twin Peaks model, which is the focus of the study. The rationale of South Africa’s adoption of the Twin Peaks model is also considered. The Twin Peaks model was introduced in South Africa through the enactment of the Financial Sector Regulatory Act. This legislation reveals that South Africa has drawn increasingly on international experience, particularly the structural design and the cooperation and collaboration of the regulators. It also reveals similarities, notable differences as well as characteristics that might be regarded as unique to South Africa. The similarities reveal that the South African Twin Peaks greatly aligns with that of its counterparts. This is exemplified through the cooperation and coordination between the regulators and the relationship between the regulators and the government amongst others. The study explores insights and lessons to South Africa which can be learnt from its counterparts like the need for effective coordination amongst the Twin Peak regulators. Thereafter, the study puts forward recommendations for reform, which can enable the effective implementation of the Twin Peaks financial regulatory architecture. , Thesis (MA) (Laws) -- University of Fort Hare, 2021
- Full Text:
- Date Issued: 2021-09
Effects of paclobutrazol and plant spacing on growth, yield, and after effect on sprout development in seed potatoes (solanum tuberosum l.)
- Jokazi, Khuselo Bernad https://orcid.org/0000-0002-8620-9838
- Authors: Jokazi, Khuselo Bernad https://orcid.org/0000-0002-8620-9838
- Date: 2021-01
- Subjects: Potatoes , Plant regulators
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21323 , vital:48406
- Description: Potato (Solanum tuberosum L.) is an herbaceous plant that belongs to the genus Solanum, in the Solanaceae family which is comprised of about 2 800 species (Sahair et al., 2018). Potato domestication can be traced back to the sixteenth century in the South American continent (Hawkes, 1978). The potato crop became a staple food for greater parts of the world towards the end of the seventeenth century. It is not clear when the crop was introduced to the African continent, although the literature indicates that it was grown in some parts of the continent by the late seventeenth century (Hawkes, 1978). Potato is a very bulky crop and is a source of high energy per given area of land (Tsegaw, 2005). Nutritionally, the crop is rich in carbohydrates and provides a considerable amount of protein, with a good balance of amino acids, vitamins (C, B6, and B1, folate), minerals (potassium, phosphorus, calcium, and magnesium), and the micronutrients iron and zinc. Potatoes are also a source of high dietary fiber, especially when eaten unpeeled. In addition, potatoes are rich in antioxidants, including polyphenols, vitamin C, carotenoids, and tocopherols (Bradshaw and Ramsay, 2009). Potatoes play a very important role in the global food system. It is South Africa’s most important vegetable crop (DAFF, 2012). Worldwide, it ranks fourth topmost important food crops following wheat, maize, and rice (Esmaielpour et al., 2011; Bradshaw and Ramsay, 2009), followed by barley (Allemann et al., 2003). South Africa is the 27th largest producer in the world and the 3rd largest producer in Africa after Egypt and Malawi (FAOSTAT, 2015). In the year 2014, potatoes were produced in 51 435 hectares of land, which yielded over 2 million tons (DAFF, 2015). This crop is produced in sixteen producing regions throughout South Africa with the Limpopo, Free State, Western Cape, Mpumalanga, KwaZulu-Natal, and Eastern Cape provinces being the leading regions (DAFF, 2015). Because of the different climatic regions in South Africa, potatoes are planted at different times of the year. As a result, the country enjoys fresh potatoes throughout the year (DAFF, 2014). According to the Potato Industry Research Strategy 2014-17 under Potato South Africa, the past few years have seen a decrease in the area of land under potato production, with an increase in the average yield per area. This yield increment can be accredited to an increase in the production under irrigation system, the use of improved cultivars and seed quality, and the application of research results (PSA, 2014). World potato production indicates that intensive cultivation has led to an increment of potato yields between 1960 and 1999, even though there was a reduction in the area planted with the crop (Fabeiro et al., 2001). However, there is a large gap between potential potato yield and actual yield per hectare. Research undoubtedly holds great potential for narrowing this gap. In order to do so, there is a need to understand the factors limiting potato yield. Temperature, plant spacing, and seed tuber quality are amongst the most significant factors affecting potato growth, yield, and quality. Potatoes are very adaptive; at present, they can be produced in different climatic regions. They are temperate crops, which prefer a cool and humid climate (Haverkort, 1990), but care should be taken to avoid high-stress periods such as temperature extremes. The optimum temperature for haulm growth and net photosynthesis is in the range between 15℃ and 25℃, and 20℃ is the optimum temperature for tuberization. Tuberization is inhibited by temperatures above 29℃, as the photoassimilate partitioning towards the tubers is decreased, leading to an increase in shoot growth (Gawronska et al., 1992). Plant spacing is usually determined by the target market and cultivar. , Thesis (MSc) -- Faculty of Science and Agriculture, 2021
- Full Text:
- Date Issued: 2021-01
- Authors: Jokazi, Khuselo Bernad https://orcid.org/0000-0002-8620-9838
- Date: 2021-01
- Subjects: Potatoes , Plant regulators
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/21323 , vital:48406
- Description: Potato (Solanum tuberosum L.) is an herbaceous plant that belongs to the genus Solanum, in the Solanaceae family which is comprised of about 2 800 species (Sahair et al., 2018). Potato domestication can be traced back to the sixteenth century in the South American continent (Hawkes, 1978). The potato crop became a staple food for greater parts of the world towards the end of the seventeenth century. It is not clear when the crop was introduced to the African continent, although the literature indicates that it was grown in some parts of the continent by the late seventeenth century (Hawkes, 1978). Potato is a very bulky crop and is a source of high energy per given area of land (Tsegaw, 2005). Nutritionally, the crop is rich in carbohydrates and provides a considerable amount of protein, with a good balance of amino acids, vitamins (C, B6, and B1, folate), minerals (potassium, phosphorus, calcium, and magnesium), and the micronutrients iron and zinc. Potatoes are also a source of high dietary fiber, especially when eaten unpeeled. In addition, potatoes are rich in antioxidants, including polyphenols, vitamin C, carotenoids, and tocopherols (Bradshaw and Ramsay, 2009). Potatoes play a very important role in the global food system. It is South Africa’s most important vegetable crop (DAFF, 2012). Worldwide, it ranks fourth topmost important food crops following wheat, maize, and rice (Esmaielpour et al., 2011; Bradshaw and Ramsay, 2009), followed by barley (Allemann et al., 2003). South Africa is the 27th largest producer in the world and the 3rd largest producer in Africa after Egypt and Malawi (FAOSTAT, 2015). In the year 2014, potatoes were produced in 51 435 hectares of land, which yielded over 2 million tons (DAFF, 2015). This crop is produced in sixteen producing regions throughout South Africa with the Limpopo, Free State, Western Cape, Mpumalanga, KwaZulu-Natal, and Eastern Cape provinces being the leading regions (DAFF, 2015). Because of the different climatic regions in South Africa, potatoes are planted at different times of the year. As a result, the country enjoys fresh potatoes throughout the year (DAFF, 2014). According to the Potato Industry Research Strategy 2014-17 under Potato South Africa, the past few years have seen a decrease in the area of land under potato production, with an increase in the average yield per area. This yield increment can be accredited to an increase in the production under irrigation system, the use of improved cultivars and seed quality, and the application of research results (PSA, 2014). World potato production indicates that intensive cultivation has led to an increment of potato yields between 1960 and 1999, even though there was a reduction in the area planted with the crop (Fabeiro et al., 2001). However, there is a large gap between potential potato yield and actual yield per hectare. Research undoubtedly holds great potential for narrowing this gap. In order to do so, there is a need to understand the factors limiting potato yield. Temperature, plant spacing, and seed tuber quality are amongst the most significant factors affecting potato growth, yield, and quality. Potatoes are very adaptive; at present, they can be produced in different climatic regions. They are temperate crops, which prefer a cool and humid climate (Haverkort, 1990), but care should be taken to avoid high-stress periods such as temperature extremes. The optimum temperature for haulm growth and net photosynthesis is in the range between 15℃ and 25℃, and 20℃ is the optimum temperature for tuberization. Tuberization is inhibited by temperatures above 29℃, as the photoassimilate partitioning towards the tubers is decreased, leading to an increase in shoot growth (Gawronska et al., 1992). Plant spacing is usually determined by the target market and cultivar. , Thesis (MSc) -- Faculty of Science and Agriculture, 2021
- Full Text:
- Date Issued: 2021-01
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