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Pests and predators on genetically altered cotton (Bt-cotton) and associated host plants in South Africa
(University of the Free State, 2009-09-23)
The efficacy of the Bt-genes (the cry1Ac and cry2Ab2 genes) were evaluated for bollworms (i.e. the American or “African” bollworm, Helicoverpa armigera, the red bollworm Diparopsis castanea and the spiny bollworm species, ...
Trends in South African agricultural land prices
(University of the Free State, 2006-12-07)
English: In recent years, concern has been expressed over rising agricultural land prices in South Africa. A major concern was that this situation would impede the successful implementation of the on-going land reform ...
Biochemistry of Russian wheat aphid resistance in wheat: involvement of lipid-like products
(University of the Free State, 2007-11-03)
Physical damage and disease are known to cause changes in the lipid composition of plants. The biochemical pathways that lead to changes in the lipid composition were investigated in a comparative study using Russian wheat ...
Effect of different dietary energy levels on productive and reproductive traits in Dorper rams
(University of the Free State, 2008-02-19)
English: A study was conducted to evaluate the effects of different dietary energy levels on the productive (ADG, FCR, body weight, carcass) and reproductive (scrotum, testes, semen) characteristics of young Dorper rams. ...
Structure and synthesis of bioactive polyphenols from Cyclopia subternata (Honeybush) and Aspalathus linearis (Rooibos) tea: conformational analysis of selected chiral derivatives
(University of the Free State, 2009-10-23)
English: Endorsed by results from our initial investigations of the unique South African tea, brewed from Cyclopia intermedia (Honeybush), demonstrating the presence of polyphenolic flavonoids and glycosides, the tea is ...
The geochemistry of the dykes in the Carletonville Goldfield
(University of the Free State, 2009-11)
Numerous dykes traverse the Witwatersrand Supergroup rocks in the Carletonville Goldfield. The aim of this study was to investigate a classification system for the dykes. Samples were obtained from Tau Tona and Mponeng ...
Development of a lipase gene expression and secretion system for the protein over-production in Bacillus licheniformis
(University of the Free State, 2006-01)
Bacillus represents a genus of Gram-positive bacteria, which are ubiquitous in nature
being found in soil, water, and airborne dust. They are distinguished from other
Gram- positive bacteria by their ability to produce ...
The comparative advantage of long-term crops in Lesotho
(University of the Free State, 2005-06)
This study is one of several investigations undertaken over the years to determine the Comparative Economic Advantage of agricultural production in selected Southern African countries. The specific purpose of the Lesotho ...
The development of economic selection indices for the Simmentaler breeds in South Africa
(University of the Free State, 2004-11)
English: The purpose of the first chapter was to give a short introduction to the study. Although there were exponential increases in knowledge, there are still fields of study where there is little understanding and ...
The postcranial skeleton of the Early Triassic non-mammalian cynodont Galesaurus planiceps: implications for biology and lifestyle
(University of the Free State, 2009-12)
Newly discovered skeletons of the Early Triassic basal cynodont,
Galesaurus
planiceps, has enabled a detailed morphological redescription of the postcrania
of this genus. The examination of
Galesaurus
reveals two ...