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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

Impact analysis of the linkage between agricultural exports and agriculture’s share of Gross Domestic Product in South Africa : a case of Avocado, Apple, Mango and Orange from 1994 to 2011

Bulagi, Mushoni Benedict January 2014 (has links)
Thesis (MA. Agricultural Management (Agricultural Economics)) -- University of Limpopo, 2014 / The role of agricultural exports to agriculture’s share of Gross Domestic Product (GDP) in South Africa is of extreme importance and exhibits strong interest from all parts of the economy. Many believe that agriculture can salvage the declining economic growth under such global economic conditions. The decision to diversify and expand exports of these avocados, apples, mangoes and oranges will improve the South African economy’s unstable conditions. This study accounts for all the factors that are truly unique to South African’s economy. Therefore, the study will help to shift the focus of avocado, apple, mango and orange growers to export more due to the international market demand for such produce. The aim of the study was to analyse the link between avocado, apple, mango and orange exports and agriculture’s share of Gross Domestic Product in South Africa. The specific objectives are to determine the correlation between avocado, apple, mango and orange exports and the agriculture’s share of Gross Domestic Product in South Africa, investigate the contribution of avocado, apple, mango and orange exports and the agriculture’s share of Gross Domestic Product in South Africa, determine the growth rate (trends) of avocado, apple, mango and orange exports and determine the volatility of avocado, apple, mango and orange exports. The study used secondary time series data that covered a sample size of 17 years (1994 - 2011) of avocado, apple, mango and orange exports in South Africa. Two Stages Least Square models and Growth rate and Volatility models were used for data analysis. i Empirical results for agricultural exports equation revealed that agricultural economic growth in South Africa was significant with a positive coefficient. While a negative relationship between the Net Factor Income (NFI) and the agricultural exports in South Africa was noticed. Real Capital Investments had a significant positive coefficient. Consequently, results from agricultural economic growth equation revealed that agricultural exports were significant with a positive correlation. A relationship between NFI and agricultural GDP was also witnessed. Like other variables, Real Capital Investment was significant but negatively correlated. The results of growth rate and volatility models showed positive trends. Furthermore, results showed that the quantity of agricultural exports was positively related to agricultural economic growth. Another point of interest was that while these exports were positive and significantly related, the magnitude of its coefficient is smaller than the coefficients of Real Capital Investments. It is in this framework that the positive correlation exists between agriculture economic growth and agricultural exports. It is recommended that investment opportunities in the agricultural sector need to be investigated further because there is limited knowledge of the subject. The Department of Agriculture, Forestry and Fishery and the private sector need to join hands and build a mutual relationship to aid develop an agricultural economy which can be able to exports more than what it imports. This can also be done by subsidising farmers with capital to relieve them of other expenses.
82

Do African country investment plans mitigate high food prices through improved household risk management? : a five-country comparative analysis.

Ngidi, Mjabuliseni Simon C. 10 April 2014 (has links)
Staple food prices rose sharply in 2007/2008, dropped slightly after July 2008, and rose again in 2010/2011. Since 2008, food prices have remained high, indicating a structural upward adjustment in food prices amidst excessive price volatility. The 2008 food price increases led to considerable media coverage and alarm among governments who implemented a variety of responses to protect their populations from food insecurity. At the start of the high food price crisis in May 2008, the African Union and New Partnership for Africa’s Development (AU/NEPAD) invited 16 African countries to a workshop in South Africa. The aim of the workshop was to assist selected African countries identify and formulate appropriate plans to mitigate food insecurity and manage rising food prices. This study set out to investigate whether the strategies implemented by national governments at the start of the crisis mitigated high food prices through improved risk management strategies in five African countries (Ethiopia, Kenya, Malawi, Rwanda and Uganda) and evaluated these strategies to see if they were included in the national agriculture and food security investment plans. To achieve this, the study set out to explore four sub-problems, namely: What was the impact of high food prices on populations in the five selected countries (Ethiopia, Kenya, Malawi, Rwanda and Uganda)? How did the five countries respond to the 2008 food price crisis with regard to providing for immediate needs and protecting vulnerable groups from food insecurity? How many early actions were included in country compacts and agriculture and food investment programmes? Do country investment plans include household risk management programmes that will protect vulnerable groups against high food prices in future? The involvement of the researcher in the AU/NEPAD workshop and his subsequent engagement with national government representatives provided a unique opportunity to analyse the iterative process of Country Investment Plan (CIP) development. This innovative and largely qualitative study integrated comparative, content and thematic analysis approaches, using the four elements of the Comprehensive Africa Agricultural Development Programme’s (CAADP) Framework for African Food Security (FAFS) to analyse the national plans. The study drew on available data from a wide variety of national, regional and international documents. Additional data were collected through a survey questionnaire completed by CAADP country focal persons. Data sourced from documents included Food Price Indices, country policy responses to high food prices, poverty and malnutrition indicators and the types of risk management strategies designed under CAADP. The study found that food prices increased across all five countries between 2007 and 2008, although the effects of the increases varied, being influenced by, among other factors, the proportion of national stocks purchased on the international market (i.e. net importers of staple crops), the availability of substitute staples on the domestic market and the magnitude of the difference between international and domestic market prices. The 2008 food price increases forced populations to spend a higher proportion of their income on food and eroded their purchasing power, impacting on the food security of these populations. Poor people adopted eroding consumption strategies that increased food insecurity. The impact of the high food prices on populations was determined by whether they were net food buyers or producers, the mix of staple commodities in their food basket and the proportion of income spent on food. As poor net food importing countries, imported staple foods became too costly, except in Uganda - a net exporter of food staples consumed in the surrounding countries. High food prices also provoked social unrest in Ethiopia and exacerbated political and economic instability in Kenya. Countries’ early responses to the food price crisis were varied and included responses that can be classified into three main categories, namely: Trade-oriented responses protected domestic stocks, reduced tariffs, restricted exports to reduce prices for consumers or increased domestic supply Consumer-oriented responses provided direct support to consumers and vulnerable groups in the form of, among others, food subsidies, social safety nets, tax reductions and price controls Producer-oriented responses provided incentives for farmers to increase production - using measures such as input subsidies and producer price support. Most responses were aimed at managing prices, suggesting that governments tried to protect citizens from price increases and buffer consumption reduction. Safety net programmes mitigated risks through the provision of food for immediate consumption. As a result, malnutrition levels unexpectedly decreased or remained static in these five countries, despite expectations and media claims that the number of hungry people would increase significantly. The early actions from the food price workshop plans were generally systematically translated into long-term programmes in the Compacts and Country Investment Plans. In Ethiopia, seven of eight early action plans were translated into the CIP, Kenya included three of eight, Malawi’s CIP included four of ten, and Rwanda included six of its ten early actions in their CIP programme, while Uganda included only six of thirteen early actions in their CIP. The study found that CIPs included risk management strategies, but these focused predominantly on improving early warning systems and crisis prevention. The risk management options largely included options for improving crisis prevention, followed by improving emergency responses and strengthening risk management policies and institutions. Only Kenya’s CIP included more risk management options for improving emergency responses – four of six risk management programmes. Despite expectations that programmes developed under CAADP FAFS would include all FAFS elements, CIPs lacked programmes to improve dietary quality. Only Rwanda’s CIP included nutrition programmes - three of six programmes in their CIP. The study concluded that while the proposed risk management strategies could mitigate risks associated with high food prices and offer some buffer for populations from food insecurity, the programmes are not comprehensive. The plans were generally weak regarding improving dietary quality through diversification of food consumption and production. Although the CIPs included risk management strategies, these strategies would not address risks in a comprehensive manner. More effective and coherent actions are still required to help the most food insecure populations cope with increasing high food prices and future price shocks; help developing country farmers respond to the opportunities offered by the rising demand for their products; and bring more stability in prices. The early food price response workshop seems to have influenced the development of programmes in the CAADP compact and CIPs, despite the fact that the workshop did not intend to assist countries with the development of comprehensive national investment plans. The large funding gaps in the CIPs constrain implementation of essential mitigation and development strategies and could leave countries vulnerable to the negative impacts of higher prices for consumers and threaten future household food security. The study recommends that countries invest in agriculture-led growth to boost domestic production and strengthen institutional capacities regarding national food stock reserves to reduce their dependency on imports and ensure food insecurity. National monitoring and evaluation systems need to be strengthened to evaluate and monitor the implementation of CIPs and to warn about future high food prices. Empirical estimation of the impact of price increases on households across all CAADP countries is needed to understand and monitor the impact of price changes and interventions. / Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2012.
83

Agriculture under the Doha Round and food security in Sub-Saharan Africa.

Hailu, Martha Belete January 2005 (has links)
The objectives of the research was to critically analyse arguments for and against agricultural trade liberalization and its impact on food security, investigating the nexus between the three pillars of agriculture and food security, considering how the Agreement on Agriculture and the Food Aid Convention addressed the concerns that were raised by the different parties during the negotiation period, and finally it considered how the current multilateral negotiations in agriculture can provide a secure framework within which developing African countries can pursue effective policies to ensure their food security.
84

Essays on environmental determinants of health behaviors and outcomes

Truong, Khoa Dang. January 2008 (has links)
Thesis (Ph.D.)--Pardee Rand Graduate School, 2007. / Title from title screen (viewed on June 13, 2008). This website links to the complete document in PDF format. Includes bibliographical references.
85

Vivres en ville: des jardins au marché sur l'archipel du Vanuatu

Greindl, Delphine January 1999 (has links)
Doctorat en sciences sociales, politiques et économiques / info:eu-repo/semantics/nonPublished
86

Detection and molecular identification of Mucorales isolated from spoilt agricultural commodities collected in fresh produce markets in Gauteng province, South Africa

Kwinda, Grace Thiambi 12 1900 (has links)
Fruit and vegetables are often spoilt during storage, handling and transportation due to microorganisms. The common spoilage causes are fungi within the order Mucorales, the largest order of the class Zygomycetes. Such spoilage can result in reduced food supplies, poor quality and severe losses to producers and traders. The study was to investigate the type of Mucorales prevalent in various commodities and in a particular market than others. Fifty infected papaya, peaches and strawberries were collected at five occasions from large, medium and small markets. Isolation was done aseptically in a biosafety cabinet. Mucorales were identified morphologically, through culture based tests and molecular techniques. Mucorales isolated are Rhizopus stolonifer, Mucor circinelloides and Mucor racemosus. Mucorales were isolated at a higher rate in samples collected from the small market than other two markets. Spoilage in all three markets is assumed to be influenced by lack of modified temperatures in the storage room. / Life and Consumer Sciences / M. Sc. (Life Sciences)
87

'n Ekonomiese analise van die potensiaal van Sutherland as verbouingsarea vir die uitvoer van tulpbolle na Nederland

Du Toit, Werner 12 1900 (has links)
Thesis (MComm (Business Management))--University of Stellenbosch, 2005. / Tulips are the second largest floral commodity that is traded globally. Currently Holland controls half of the 20 billion Dollar tulip bulb market, although immense pressure from European institutions may serve to change this phenomenon in the near future. Not only do increasing labour costs and stricter legislation on the usage of pesticides impair this industry, but the Dutch government also places huge pressure on its own producers to convert scarce agricultural land into residential areas. These conditions could therefore provide a possible market opportunity for farmers from other countries. Due too the fact that the price of tulip bulbs is based on the size of the flower and the length of the floral stem, floral farmers generally gain an extra 2-3 cm stem length via physically cutting it out of the tulip bulb. Therefore, floral farmers annually destroy their whole supply of tulip bulbs, resulting in a need to reacquire bulbs from bulb growers. Due to the fact that the lifespan of cut tulip flowers is generally not more than seven days, Dutch land rezoning ought to result in tulip bulb production being the production component which could truly be relocated in a global context. In this study, an economic analysis is therefore conducted to ascertain South Africa’s potential to produce tulip bulbs in order to supply the growing demand in the Netherlands. Information was gathered by performing a literature study of existing literature and by conducting structured interviews with numerous experts in their various fields of operation. Due to the fact that expertise in South Africa was very limited, a large number of interviews were scheduled with experts from Holland and Germany. The presence of strict non-disclosure contracts resulted in a situation where interviews had to be conducted with individuals who are two to three levels removed from any relevant tulip organisation. The study was conducted through first analysing the global market from a horticultural perspective and thereafter from an economic-logistical stance. It was established that tulip bulbs are very temperature sensitive and therefore have to be produced far from any tropical zones. Since Sutherland’s winter temperature is similar to that of Dutch production areas, South African tulip bulbs could be planted in Holland. The difference in seasons of production allows farmers from the Southern Hemisphere to predict the extremely fashion sensitive market in one year less. Via moving production activities between alternative hemispheres, off seasons can be utilized for production, which could result in fashions being predicted with a greater sense of accuracy. If unfashionable bulbs are produced, a loss of up to R 34 129,87 per ha can be incurred, while mid-priced bulbs and fashionable bulbs can earn respectively R80 118,09 and R 122 626,57 per ha. Projections are however based on the prices of a bear phase where the market currently pays up to 75% less for bulbs than it did three years ago. The production costs in Sutherland could be cut by R 15 750 if it is decided to mechanise production but simultaneously this action will result in an increase of R120 000 in new capital equipment required. The use of 40 feet High Cube Reefers reduces transportation costs considerably and 1 042 437 bulbs with a circumference of between 10 and 12 cm can be shipped in such an container via utilizing South African produced SN 64190 crates and four way export pallets. Market penetration remains an important consideration since a farmer’s production history is very important in the international market environment. Partnerships, production of larger bulbs, organic production and seasonal production in alternating hemispheres, remain some of the most suitable techniques for market penetration.
88

The EU-SA free trade agreement : implications for selected agricultural products

Corbett, Johannes Kruger 03 1900 (has links)
Thesis (MBA)--University of Stellenbosch, 2000. / ENGLISH ABSTRACT: As the Trade Development and Co-operation Agreement (TDCA) creates competitive challenges and opportunities, labour and capital will seek the highest returns, dri ving out less efficient performances while bolstering more efficient enterprises and industries. This dynamic process of adjustments will continue throughout the implementation of this agreement. The South African government sees the agreement with the European Union as a step towards restructuring the country's economy and making it part of the rapidly changing world economy. This policy view of the South African government will result in those sectors of the economy that are not internationally competitive, receiving no support from government. Consequently these sectors will decrease in time. Of the three agricultural profiles studied, fresh fruit (deciduous fruit) will benefit the most from the TDCA. The most obvious effect the agreement will have on the sector is the saving on customs duties payable on exports to the EU. An estimate on 1997 trade figures revealed that in the short term the deciduous fruit industry will save approximately RI00 million. Over the implementation period of 10 years, the industry will save about Rl billion. After that, savings amounting to approximately R125 million per annum should be possible. The canned fruit sector is an export-driven industry that exports about 90 per cent of its products, 50 per cent of which is exported to the EU. The export tariffs to the EU are very high. As non-EU member, South Africa is the biggest provider of canned fruit to the EU. Some analyses revealed that the total savings in tariffs for the first year of implementation will be R25 million. The industry stands to save approximately R100 million over the implementation period. At the EU's request, South Africa agreed to negotiate a separate Wine and Spirits Agreement. The EU believes that South Africa's continued use of certain "geographical indications" or terms is in breach of Article 23 of the Trade-related Aspects of Intellectual Property Rights (TRIPs) agreement. The quotas granted by the EU on wine and sparkling wine cover 79 per cent of South African exports to the EU. South Africa granted the EU a 0.26 million litre quota for sparkling wine and a 1 million-litre quota for bottled wine. SA will phase out the use of the terms "port", "sherry", "grappa", ouzo", "korn" , "jagertee" and "pacharan" over agreed time periods. The issue will be taken to the WTO for a ruling in this regard. The EU has agreed to grant SA a duty-free tariff quota for wine but has suspended the tariff quota until the Wine and Spirits agreement has been signed. The EU will also provide financial assistance of 15 million ECU to help restructure the SA wine and spirits sector. The South African agricultural industry should take note of the constantly changing international marketing environment. The Free Trade Agreement (FTA) signed with the European Union opens up new markets and enhances existing ones that must be exploited. It is imperative that every role player should evaluate the level of competitiveness of his or her enterprise. Thus the message is very clear: Agricultural production with an international trading view is the only sustainable road to follow. / AFRIKAANSE OPSOMMING: Soos die Handel, Ontwikkelings en Samewerkingsooreenkoms kompeterende geleenthede en uitdagings skep, sal arbeid en kapitaal verskuif na die hoogste opbrengste beskikbaar. In hierdie proses sal daar wegbeweeg word van onvoldoende prestasies en sal effektiewe ondememings en industriee floreer. Hierdie dinarniese proses van herstruktuering sal voortduur regdeur die implementeringsperiode van hierdie handelsooreenkoms. Die Suid Afrikaanse regering beskou die ooreenkoms met die Europese Unie as 'n belangrike stap in die proses om die land se ekonomie te herstrukltureer en so deel te maak van die vinnig veranderende wereld ekonomie. Hierdie regerings beleid sal daartoe lei dat sektore wat nie intemasionaal mededingend is nie, geen ondersteuning vanaf die regering sal ontvang nie. Met tyd sal hierdie sektore verdwyn. Van die drie landbousektore wat bestudeer is, sal vars vrugte (sagte vrugte) die meeste voordeel trek uit die ooreenkoms. Die besparing van aksynsbelasting op die uitvoere na die Europese Unie is die mees kenmerkendste voordeel vir die sektor. 'n Beraming gebaseer op 1997 handels syfers toon 'n jaarlikse besparing van plus minus R100 miljoen. Deur die hele implementeringsperiode, sal die besparing plus minus Rl biljoen beloop. Na afloop van die implementeringsperiode, sal jaarlikse besparing van plus minus R125 miljoen moontlik wees. Die inmaak vrugte sektor is 'n uitvoer gedrewe industrie wat gemiddeld 90 persent van hul prod uk uitvoer. Van hierdie uitvoere is 50 persent bestem vir die Europese Unie. Die uitvoertariewe na die Europese Unie is baie hoog. As nie-lidland, is Suid Afrika die grootste verskaffer van geblikte vrugte aan die Europese Unie. Beramings voorsien dat die sektor 'n totale besparing vir die eerste jaar van implemetering van plus minus R25 miljoen kan beloop. Die industrie kan soveel as R100 rniljoen oor die implementeringsperiode bespaar. Op die Europese Unie se versoek, het Suid Afrika ingestem om 'n afsonderlike Wyn en Spiritualie ooreenkoms te onderhandel. Die Europese Unie beweer dat Suid Afrika se gebruik van sekere "geografiese aanduidings" of terme, In verbreking is van Artikel 23 van die Handelsverwante Aspekte van die Intellektuele Eiendomsregte Ooreenkoms. Wyn en vonkelwyn kwotas wat deur die Europese Unie aan Suid Afrika toegestaan is, beloop 79 persent van die uitvoere na die Europese Unie. Suid Afrika het die Europese Unie In kwota van 0.26 miljoen liter vir vonkelwyn en 1 miljoen kwota vir gebottelde wyn toegestaan. Voorts sal Suid Afrika die terme "port", "sherry", "grappa", "ouzo", "kom" , "jagertee" and "pacharan" met die ooreengekome peri odes uitfaseer. Die aspek sal egter na die WHO geneem word vir In finale beslissing. Die Europese Unie het ooreengekom om aan Suid Afrika In tarief vrye kwota vir wyn toe te staan, maar het dit opgehef tot tyd en wyl die Wyn en Spiritualie ooreenkoms onderteken is. Die Europese Unie sal ook finansiele ondersteuning van 15 miljoen ECU skenk om die Suid Afrikaanse Wyn en Spiritualiee industrie te help hestruktureer. Suid Afrikaanse Landbou sal notisie moet neem van die konstante verandering in die intemasionale bemarkingsomgewing. Die Vrye Handelsooreenkoms wat geteken is met die Europese Unie, open nuwe markte en sal bestaande markte bevorder. Hierdie geleenthede moet benut word. Dit is baie belangrik dat elke rolspeler sy vlak van kompeterende vermoe moet evalueer, om so sy eie siening oor die ooreenkoms te kan uitspreek. Hieruit is die boodskap dus baie duidelik: Landbou produksie met In intemasionale handels uitkyk, is die enigste volhoubare pad om te volg.
89

Herstrukturering van die Suid-Afrikaanse landbousektor : kan kontrakboerdery 'n rol speel?

Kruger, Abraham Jakobus 12 1900 (has links)
Thesis (MBA (Business Management))--University of Stellenbosch, 2007. / AFRIKAANSE OPSOMMING: Grondhervorming en dit wat daarmee gepaard gaan, is een van die hoekstene van die normalisering van ons samelewing en is sedert 1994 deel van die transformasieproses. Die huidige regering gaan uit van die oortuiging dat blywende vrede nie verkry kan word sonder dat dié ongelykhede reggestel word nie. Is daar ‘n antwoord op Suid-Afrika se ongelyke grondbesit, en kan kontrakboerdery 'n rol speel in die oorbrugging van die probleme? Een van die belangrikste aspekte van die regstelling van die ongeregtighede van die verlede, is die uitwissing van armoede, en in hierdie verband is Landbou 'n belangrike rolspeler. Ten einde armoede te bestry en werk te skep, moet die toekomstige generasie bemagtig word deur eienaarskap te versprei. Die Wet op Inheemse Grond van 1913, die Inheemse Trust- en Grondwet van 1936, en die Groepsgebiedewet van 1950 het swart Suid-Afrikaners die geleentheid ontneem om plaaseenhede te besit en te bedryf in die blanke gebiede van Suid- Afrika wat, soos ons almal weet, verreweg die grootste gedeelte van die land asook die meer produktiewe boerderygrond uitgemaak het. Die grondhervormingsproses streef om die erfenis van hierdie wette ongedaan te maak. Sedert die Suid-Afrikaanse grondhervormingsprogram in 1994 van stapel gestuur is, heers daar groot debat oor die beleid, implementeringstrategieë en die impak van sodanige pogings op landbougrond, die lewens van die bevoordeeldes, en die Suid-Afrikaanse ekonomie. Met die toename in skaal en kompleksiteit van grondhervorming het dit al hoe moeiliker vir die Regering geword om die proses te monitor en te evalueer. Dit is nou alombekend dat, behalwe vir kwantitatiewe aanwysings, daar baie leemtes bestaan in die inligting oor grondhervorming. In die lig van die veranderende aard van wêreld-landbou- en voedselmarkte en die voortspruitende behoefte vir vertikale integrasie van die voedselverskaffingskettings, het hierdie werkstuk ten doel om die rol van kontrakboerdery as 'n instelling te ondersoek, ten einde die voortgesette deelname te verseker van kleinboere in ontwikkelende lande in die markte vir hoëwaarde produkte. Die klem val spesifiek op die Suid-Afrikaanse omstandighede vir grondhervorming. Die werkstuk bespreek die teoretiese rasionaal van kontrakboerdery, en illustreer hoe dié vorm van boerdery aangewend kan word om markmislukkings en a-simmetriese informasieprobleme te oorkom. / ENGLISH ABSTRACT: Land reform and associated matters are some of the cornerstones of the normalizing of our society and have been part of the transformation process since 1994. The present regime is of the conviction that lasting peace cannot be achieved without such unequalities being addressed. Is there an answer to unequal ownership of land in South Africa, and can contract farming play a role in bridging these problems? One of the most important aspects of the unrighteousness of the past, is poverty and in its eradication, agriculture is an important role player. In order to combat poverty and create jobs, the future generation must be empowered by ownership of the economy. The Indigenous Land Act of 1913, The Indigenous Trust and Land Act of 1936, and the Group Areas Act of 1950 deprived Black South Africans of the opportunity to own and run farming units within the white areas of South Africa that, as we all know, formed by far the largest part of the land as well as the more productive farming land. The land reformation process strives to annul the legacy of those laws. Since the South African land reform program was started in 1994, a heated debate has raged about the policy, implementation stategies, and impact of such efforts on agricultural land, the lives of the beneficiaries, and the South African economy. With the increase in scale and complexity of land reform, it became more and more difficult for the regime to monitor and evaluate the process. It is now common knowledge that, except for qualitative indications, many shortcomings are apparent in the information on land reform. In light of the changing nature of world agricultural and food markets and the subsequent need for vertical integration of the food-supply chains, this study aims at investigating the role of contract farming as an institution, in order to ensure the continued participation of small farmers in developing countries in the markets for high-value products. The emphasis falls specifically on the South African conditions for land reform. This study describes the theoretical rationale of contract farming, and illustrates how this form of farming can be applied to overcome market fiascos and assimmetrical information problems.
90

Detection and molecular identification of Mucorales isolated from spoilt agricultural commodities collected in fresh produce markets in Gauteng province, South Africa

Kwinda, Grace Thiambi 12 1900 (has links)
Fruit and vegetables are often spoilt during storage, handling and transportation due to microorganisms. The common spoilage causes are fungi within the order Mucorales, the largest order of the class Zygomycetes. Such spoilage can result in reduced food supplies, poor quality and severe losses to producers and traders. The study was to investigate the type of Mucorales prevalent in various commodities and in a particular market than others. Fifty infected papaya, peaches and strawberries were collected at five occasions from large, medium and small markets. Isolation was done aseptically in a biosafety cabinet. Mucorales were identified morphologically, through culture based tests and molecular techniques. Mucorales isolated are Rhizopus stolonifer, Mucor circinelloides and Mucor racemosus. Mucorales were isolated at a higher rate in samples collected from the small market than other two markets. Spoilage in all three markets is assumed to be influenced by lack of modified temperatures in the storage room. / Life and Consumer Sciences / M. Sc. (Life Sciences)

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