English: Stripe (yellow) rust, caused by Puccinia striiformis Westend f. sp. tritici, is a major disease of bread wheat, Triticum aestivum L., in South Africa. The objective of this study was to evaluate the Yr15 gene ...

English: This study is undertaken in the light of the current importance of the Reconstruction and Development Programme (RDP) and the SA government's commitment to better primary health care (PHC) for everybody. Primary ...

English: English: In chapter one of this thesis, the literature pertaining to the genus Coniothyrium and its importance in plant pathology, is reviewed. Special attention is given to Coniothyrium species associated with ...

Crop production in the Free State is mainly performed on sandy soils. The compaction of these apedal soils can present a management problem which affects crop yields and financial returns. In addition, environmental ...

English: The aim of this study was to identify, characterize and interpret, ecologically, by using hahitat properties, the major vegetation units and their variations. The study area covers approximately 350 000 hectares. ...

English: The Department of Water Affairs in South Africa has recently moved towards the management of regions on a catchment and subcatchment scale. The Taaibos and Leeu Spruit catchments were identified as catchments ...

English: Members of Mucorales are known to produce the high value fatty acid gamma-linolenic acid [18:3(ω6)]. Although few studies have been conducted, it is known that the type of carbon source included in the medium, ...

English: Eighteen Fusarium species were isolated from dry- and stem-end-rotted potato tubers in South Africa. Samples with dry-rot lesions were easily obtained, even though samples were taken directly after harvest and ...

English: Owing to the world-wide increase in air traffic the number and intensity of collisions between birds and aircraft have increased accordingly. Bird strikes are not only responsible for considerable physical damage ...

Platelets and coagulation both play a pivotal role in thrombosis, one of the major causes of death in Western society. It is therefore not surprising that potent inhibitors are being developed to inhibit platelet function ...