Browsing School of Agricultural, Earth and Environmental Sciences by Title
Now showing items 1900-1919 of 2087
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Taro (Colocasia esculenta L. Schott) yield and quality in response to planting date and organic fertilisation.
(2009)Despite the importance of taro (Colocasia esculenta L. Schott) as a food security crop, scientific research on it is scanty in South Africa. Production site, planting date and fertiliser regime affect crop performance and ... -
Taro [Colocasia esculenta (L.) Schott] production by small-scale farmers in KwaZulu-Natal : farmer practices and performance of propagule types under wetland and dryland conditions.
(2004)Ethno-archaeological evidence shows that taro [Colocasia esculenta (L.) Schott] originated in Asia. It may have been brought into South Africa a few hundred years after 300 BC from Madagascar, where Malaysian settlers ... -
Techniques for assessing impacts of projected climate change on agrohydrological responses in the Limpopo catchment.
(2011)Climate detection studies point to changes in global surface temperature and rainfall patterns over the past 100 years, resulting from anthropogenic influences. Studies on the analysis of rainfall patterns [1950 – 1999] ... -
Techniques for assessing the impacts of wetlands on hydrological responses under varying climatic conditions.
(2011)Wetlands are considered sensitive eco-tones that provide numerous goods and services, not only to the communities which are immediately dependent upon them, but also to the many downstream stakeholders who benefit from ... -
Tectonic evolution of western central Moçambique.
(2004)This thesis examines the geological history of western central Mocambique, with a particular emphasis on the enigmatic relationships between the Umkondo Group and the Frontier Formation. In the region the geological units ... -
Tectonic history, microtopography and bottom water circulation of the Natal Valley and Mozambique Ridge, southwest Indian Ocean.
(2014)This thesis focuses on aspects of the tectonic history, sediment delivery and subsequent sediment redistribution within the Natal Valley and Mozambique Basin of the southwest Indian Ocean. It aims to 1) better constrain ... -
Tectonostratigraphy, structure and metamorphism of the Archaean Ilangwe granite - greenstone belt south of Melmoth, Kwazulu-Natal.
(1997)The mapped area, measuring about 400m2, is situated along the southern margin of the Archaean Kaapvaal Craton south of Melmoth in KwaZulu-Natal and comprises greenstones and metasediments forming a narrow, linear E-W ... -
Temperature as a factor in nectarine production in the Western Cape.
(1994)Phenological and climatic data were collected from nectarine orchards containing the cultivars Sunlite, Flavortop and Fantasia, growing in six climatically divergent areas in the Western Cape, South Africa. Shoots were ... -
Temperature dynamics within a low-cost aquaponic system and the possibe effects of climate change.
(2019)The agricultural sector is facing impeding challenges due to climate change. There is enough evidence showing that climate change has a significant impact on agricultural production. Marginalized communities that lack ... -
Tenants perception regarding the social housing rental flats : case study of Acacia Park, Aloe Ridge and Signal Hill in the Msunduzi Municipality, Pietermaritzburg, KwaZulu-Natal.
(2018)The right to adequate housing was first promulgated in the 1948 Universal Declaration on Human Rights. However, time and experience has shown that the realisation of this right is difficult to attain. The developing regions ... -
Tenure security and productivity in the Zimbabwean small farm sector : implications for South Africa.
(1996)Within the context of sub-Saharan Africa's rising population growth rate and declining agricultural productivity, there is much debate about whether communal land tenure institutions are a constraint on agricultural ... -
Testing and evaluation of a newly installed Agrometeorology Instrumentation Mast (AIM) web-based system in a rural school in Swayimana, KwaZulu-Natal, South Africa.
(2019)Rural communities in South Africa are the most vulnerable to the effects of climate change and adverse weather due to their heavy reliance on natural resources. Agricultural adaptation is therefore essential. However, there ... -
Testing for microbiologically active compounds extracted from members of the family laminaceae and other indigenous plants.
(2005)The Labiatae is a large family that occurs worldwide and have species that are adapted to almost all habitats and altitudes. Plectranthus is in this family. Plectranthus species are beautiful South African shrubs. The genus ... -
Testing for passive transfer of immunity in foals, and an evaluation of the African horse sickness vaccination schedule.
(2005)This thesis comprises an introductory review of the literature, followed by reports of two experiments which are presented in the form of scientific papers. For this reason, there may be some repetition between chapters, ... -
Testing the efficiency of the South African futures market for white and yellow maize.
(1999)An efficient futures market should provide a forecast of the future spot price which reflects all publicly available information; ideally, for effective price discovery such forecasts would also be unbiased. The trading ... -
Testing the libido of breeding sires to predict mating performance in the field and the hormonal control of male sexual behaviour.
(1988)The incidence of sexually low-response rams was determined in a group of 31 young Ile de France stud rams by means of three libido tests. Eight rams ( 25,8%) we reclassified as being sexually low-response. The proportion ... -
The effect of dietary crude protein, organic selenium and vitamin E on fertility and semen quality of broiler breeder males.
(2008)There are negative influences of selection for broiler growth on the reproductive ability of broiler breeder parents. This is mostly due to problems related to excessive body weight, such as an inability to achieve successful ... -
The effects of compaction and residue management on soil properties and growth of Eucalyptus grandis at two sites in KwaZulu-Natal, South Africa.
(2010)Concerns have been raised over the long-term site productivity (LTSP) of short rotation plantation forests, such as those of Eucalyptus, in South Africa. This is because diminished productivity of long rotation plantations ... -
The feasibility of automatic on-board weighing systems in the South African sugarcane transport industry.
(2009)Sugarcane hauliers in South Africa have high variations in vehicle payloads, which influence both transport economics and the legitimacy of their operations. Increasing economic pressure due to declining sugar prices and ... -
The impact of food aid on maize production in Swaziland.
(2007)The objective of the study was to provide empirical evidence on whether food aid leads to depressed domestic maize prices and reduced maize production in subsequent years in Swaziland. Similar impact studies have been ...