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Faculty of AgriSciences
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Browsing by Issue Date

Browsing by Issue Date

Now showing items 1-20 of 21

Antioxidant capacity of Pinotage wine as affected by viticultural and enological practices

De Beer, Dalene (Stellenbosch: University of Stellenbosch, 2006-12)

The aim of the study was to provide the South African wine industry with guidelines for the production of Pinotage wines with optimal total antioxidant capacity (TAC), while retaining sensory quality. The contribution ...
Conservation in human-influenced areas : epigaeic arthropods in the Cape Floristic Region Lowlands

Boonzaaier, Carmen (Stellenbosch : Stellenbosch University, 2006-12)

ENGLISH ABSTRACT: The conservation of biodiversity is becoming increasingly challenging as habitats are disturbed, fragmented or destroyed. Although nature reserves now cover more than 10 % of the earths’ surface it has ...
Determination of the methanogenic potential of an apple processing wastewater treatment system

Paulsen, Cindy (Stellenbosch : University of Stellenbosch, 2006-12)

The food and beverage industry generates large volumes of wastewater annually. The disposal of factory effluent from the fruit processing industry has always been a cause of concern to both the fruit processors and ...
The effect of supplemental biotin in dairy cow diets on forage fermentation characteristics

Bunge, Gregory Andrew (Stellenbosch : University of Stellenbosch, 2006-12)

Six non-lactating, ruminally cannulated Holstein cows were used in a three part study to determine the effect of biotin supplementation to dairy cows on forage fermentation characteristics. Cows were randomly assigned to ...
The effects of fire and harvesting on Restionaceae SPP. (Thamnochortus insignis and T. erectus) with different life histories : a matrix modelling approach

Campbell, Tessa Angela (Stellenbosch : University of Stellenbosch, 2006-12)

The Restionaceae is a dominant family in the Fynbos Biome, an area in which fire plays a role as an important disturbance, yet little is known about their population dynamics. Two species of the Restionaceae (Thamnochortus ...
Evaporative cooling of apple and pear orchards

Van den Dool, Kari (Stellenbosch : University of Stellenbosch, 2006-12)

A growing number of fruit producers in warm areas are adopting the use of overtree evaporative cooling (EC) as a technique to reduce sunburn and enhance colour development of red or blushed fruit. Because fruit do not have ...
Experiments to modify grape juice potassium content and wine quality on granite derived soils near Paardenberg

Agenbach, G. (Stellenbosch : University of Stellenbosch, 2006-12)

High potassium content in grape juice and wine are associated with low quality red wine in warm wine producing countries. In an attempt to reduce the potassium content of juice, must and wine, a field experiment was laid ...
Factors affecting post-storage quality of ‘Nules Clementine’ mandarin fruit with special reference to rind breakdown

Khumalo, Ngcebo Parton (Stellenbosch : University of Stellenbosch, 2006-12)

Rind breakdown of ‘Nules Clementine’ mandarin (Citrus reticulata Blanco) is a physiological rind disorder that develops during storage. The disorder appears following leakage of essential oil from oil glands in the flavedo, ...
The feeding ecology of yearling, juvenile and sub-adult Nile crocodiles, Crocodylus niloticus, in the Okavango Delta, Botswana

Wallace, Kevin Michael (Stellenbosch : University of Stellenbosch, 2006-12)

The stomachs of 286 crocodiles (17 cm to 166 cm snout to vent length) were lavaged over a two year period. Crocodylus niloticus has a similar ontogenetic shift in diet to that of other crocodilians. Yearlings predated ...
Flower initiation and development of Protea cv. Carnival

Hoffman, Eleanor Wilhelmina (Stellenbosch : Stellenbosch University, 2006-12)

ENGLISH ABSTRACT: Advancement of the flowering time of Protea cv. Carnival by approximately three months, without compromising the product quality, was achieved by the application of 6- benzyladenine-containing plant ...
Groei- en produksievergelyking tussen konvensionele, multi-eenheid, siektegeteisterde varke en hoë gesondheids multi-eenheid varke

Raath, Jacobus Johannes (Stellenbosch : University of Stellenbosch, 2006-12)

ENGLISH ABSTRACT: A trial was done to determine if there are any differences in the growth performance of finisher pigs in the old conventional type of housing with disease infected pigs, pigs in multi unit housing that ...
An institutional approach to appropriation and provision in the commons : a case study in the Highlands of Eritrea

Habteab Sibhatu, Adam (Stellenbosch : University of Stellenbosch, 2006-12)

The natural resources mainly land, forests, and grazing lands in the Highlands ago-ecological zone of Eritrea are in a severely degraded state. And much of these common pool resources comprise commons i.e. they are managed ...
Investigation of resveratrol production by genetically engineered Saccharomyces cerevisiae strains

Trollope, Kim (Stellenbosch : University of Stellenbosch, 2006-12)

Resveratrol is a phytoalexin that is produced in the leaves and skins of grape berries in response to biotic and abiotic factors. Substitution and polymerisation of resveratrol units produce an array of compounds which ...
Isolation and evaluation of the sugarcane UDP-glucose dehydrogenase gene and promoter

Van der Merwe, Jennie (Stellenbosch : University of Stellenbosch, 2006-12)

The young internodes of sugarcane are ideal targets for altering metabolism, through genetic manipulation, to potentially control known fungal diseases such as Smut or to increase sucrose yields in these regions that are ...
Manipulation of neutral invertase activity in sugarcane

Joubert, Debra (Stellenbosch : University of Stellenbosch, 2006-12)

The main goal of this project was to elucidate the apparent role of neutral invertase (NI) in sucrose accumulation in sugarcane. In the first part of the study putative transgenic cell lines (transformed with antisense ...
Monitoring rehabilitation success on Namakwa Sands heavy minerals mining operations, Namaqualand, South Africa

Blood, Jeremy Russell (Stellenbosch : University of Stellenbosch, 2006-12)

Anglo American Corporation’s Namakwa Sands heavy minerals mining and beneficiation operation has been strip-mining a heavy mineral deposit, rich in the commercially valuable minerals ilmenite, rutile and zircon, since ...
Multi-criteria decision-making for water resource management in the Berg Water management area

De Lange, Willem J. (Stellenbosch : University of Stellenbosch, 2006-12)

ENGLISH ABSTRACT: The concept of social welfare maximisation directs strategic decision-making within a milieu of integrated planning problems. This study applies the aforementioned statement to decision-making regarding ...
Patterns of variability in Azorella selago Hook. (Apiaceae) on sub-Antarctic Marion Island : climate change implications

Nyakatya, Mawethu Justice (Stellenbosch : Stellenbosch University, 2006-12)

ENGLISH ABSTRACT: Understanding the responses of species to climate change is a scientific problem that requires urgent attention, especially under current conditions of global climate change. The large and rapid rates ...
PCR detection, denaturing gradient gel electrophoresis (DGGE) fingerprinting and identification of the microbial consortium in different types of UASB granules

Keyser, Maricel (Stellenbosch: University of Stellenbosch, 2006-12)

High-rate anaerobic bioreactors are used for the treatment of various wastewaters, of which the upflow anaerobic sludge blanket (UASB) bioreactor has the widest application, especially in the food and beverage industries. ...
Preharvest manipulation of rind pigments of Citrus spp.

Le Roux, Smit (Stellenbosch : University of Stellenbosch, 2006-12)

Rind colour is one of the main cosmetic preferences consumers use when purchasing citrus (Citrus spp.) fruit. To enhance the cosmetic quality of citrus fruit, attempts were made to stimulate preharvest chlorophyll ...