Browsing Masters Degrees (Viticulture and Oenology) by Title
Now showing items 117-136 of 175
-
Manipulation of the taste of Regal Seedless (Vitis vinifera L.) table grapes
(Stellenbosch : University of Stellenbosch, 2007-03)Regal Seedless is a white, seedless grape which has the potential to become a profitable cultivar for the table grape producer since it has the advantages of early season harvesting and inherently large berries. There ... -
Metabolic, genetic and physiological responses to SO2 exposure and nutrient-limiting conditions in Brettanomyces bruxellensis
(Stellenbosch : Stellenbosch University, 2014-04)ENGLISH ABSTRACT: Brettanomyces bruxellensis has become of increasing interest over the past few decades yet this complex red wine spoilage yeast is still poorly understood and strain variance also leads to the contradictory ... -
Mode of action studies of defensin peptides from native South African Brassicaceae species
(Stellenbosch : Stellenbosch University, 2013-03)ENGLISH ABSTRACT: Plant defensin peptides have become promising and attractive candidates to be used as antifungal agents in agricultural biotechnology. These peptides have a broad spectrum antifungal activity and play ... -
Molecular and phenotypic characterisation of grapevines expressing non-vinifera PGIP encoding genes
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Plants are constantly exposed to biotic and abiotic stress inducing factors that threaten their existence. Biotic factors such as pathogens are the cause of huge yield losses to crop plants worldwide ... -
Monitoring the quality control chain from vineyard to wine : an industrial case study
(Stellenbosch : Stellenbosch University, 2006-03)The production of premium quality wine is dependant on excellent management of the total wine production value chain. To achieve this we need rapid and reliable analytical tools. Over the last decade Fourier transform ... -
Monitoring the spreading of commercial wine yeasts in the vineyard
(Stellenbosch : Stellenbosch University, 2003-12)ENGLISH ABSTRACT: Traditionally, wine has been produced by the spontaneous fermentation of grape juice by yeast that originate from the grapes and winery equipment. Research has shown that the population composition and ... -
'n Morfologiese en fisiologiese studie van agt Suid-Afrikaanse gisrasse
(Stellenbosch : Stellenbosch University, 1948)NO ABSTRACT AVAILABLE -
Mulching and tillage with compost to improve poor performing grapevines
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH SUMMARY: The study explored two strategies for improvement of grapevine performance. The first aim was to assess varying levels of compost mulch thickness and the effects thereof on soil water content and grapevine ... -
Nitrogen utilisation of selected non-Saccharomyces yeasts and the impact on volatile compound production
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: During fermentation, nitrogenous compounds serve as nutrients for the yeasts, which enable their growth, functioning and maintenance of the yeasts cells. From a winemaking perspective, a certain amount ... -
Nutritional requirements and survival of the red wine spoilage yeast Brettanomyces bruxellensis
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Brettanomyces bruxellensis is a red wine spoilage yeast that plagues the wine industry. It facilitates the formation of compounds such as volatile phenols, which impart negative aromas in red wines. Its ... -
Nutritional status of geologically different vineyards in Helderberg
(Stellenbosch : University of Stellenbosch, 2009-12)ENGLISH ABSTRACT: Little scientific information regarding the effect of different geological parent materials on grapevine performance is currently available in South Africa. This aspect is of special significance for ... -
Oenological evaluation of Chenin Blanc wines elaborated from different trellising systems
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Grape composition plays a significant role in defining wine style and typicality; and there are ways in which grape composition can be altered or modified. Among these ways are viticultural practices which ... -
'n Ondersoek na die aard, omvang en beheer van voëlskade by druiwe van verskillende wyndruifkultivars in die streek Stellenbosch-Simonsberg
(Stellenbosch : Stellenbosch University, 1981-12)ENGLISH ABSTRACT: No abstract available -
n Ondersoek van Suid-Afrikaanse wyne ten opsigte van sekere troebelinge wat in hulle voorkom en die uitwerking van middels wat gebruik word om hulle kondisie te verbeter
(Stellenbosch : Stellenbosch University, 1952-06)No Abstract Available -
Die ontstaan en voorkoms van gliserien by die gisting van druiwemos
(Stellenbosch : Stellenbosch University, 1955)No Abstract Available -
Die oorproduksie van wyn in Suid-Afrika
(Stellenbosch : Stellenbosch University, 1932-10)VOORWOORD: Die doel van hierdie verhandleing is in die eerste plek om daarop te wys dat in Suid-Afrika meer wyn geproduseer word as wat tans van die hand gesit kan word teen 'n prys wat die produsente genoegsaam sal vergoed. ... -
Optimising productivity and grape composition (grapevine potential) for a specific wine production goal: adaptation of grapevine reproductive/vegetative balance in modified training systems
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Provided the current economic context in South Africa, grape producers are being forced to think outside the box and explore and employ new approaches in order to optimize productivity in a sustainable ... -
Optimising productivity in vineyards and potential effects on grape and wine composition for a specific production goal
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: In this study three trellis/training systems (double split cordon gable, vertical shoot positioning and sprawling systems) located in a Vitis vinifera cv. Shiraz vineyard in Stellenbosch were investigated ... -
Optimization and evaluation of heterologous lysozyme production in saccharomyces cerevisiae
(Stellenbosch : University of Stellenbosch, 2011-03)ENGLISH ABSTRACT: Hen egg white lysozyme (HEWL; muramidase; EC 3:2:1:17) is an enzyme present in high concentrations in chicken (Gallus gallus) egg whites. It hydrolyses the link between N-acetylmuramic acid and ... -
Over-expression and analysis of two Vitis vinifera carotenoid biosynthetic genes in transgenic Arabidopsis
(Stellenbosch : University of Stellenbosch, 2006-03)Plants have evolved photosynthetic systems to efficiently harvest sunlight energy for the production of carbohydrates, but these systems also are extremely susceptible to an excess of light. To combat the potential ...
