by Astrid Buica & Valeria Panzeri | 1 Oct, 2018 | Oenology research, Winetech Technical
In this experiment, we focused on both sensory and chemistry evaluation of very young Chenin blanc wines. On the chemistry side, 3MH and 3MHA were measured. On the sensory side, attributes from the labels and tasting sheets of the wines were compared to those...
by Johan Fourie | Viticulture research, Winetech Technical
Cover crop management is widely applied in the vineyards of South Africa. Introduction The cover crops are grown during winter and controlled chemically any time from the end of August (end of winter) in non-irrigated bush vines, to early October (spring) in...
by Johan de Jager | Practical in the vineyard, Winetech Technical
When this theme is discussed winemakers and wine producers tend to ask the following general questions: How do we control the amount of nitrogen in the soil that ensues from fertiliser applications? Can the nitrogen in the soil impact on the YAN levels in the juice?...
by Koos Bouwer | Viticulture research, Winetech Technical
Previous Confronting Climate Change industry trend reports have indicated that electricity consumption for the pumping of water is the largest source of farm-level carbon emissions. Irrigation of crops is a necessity in a water-scarce country and predominantly...
by Rodney Hart, Bongani Ndimba & Neil Jolly | Oenology research, Winetech Technical
The aim of this study was to select and evaluate naturally bred Saccharomyces cerevisiae intra-genus hybrids for the production of wine with enhanced fruity and tropical fruit aromas, but low volatile acidity levels. Introduction Sauvignon blanc wine aroma is...
by Charl Theron | Practical in the cellar, Winetech Technical
Some of the most expensive wines in the world are made from Pinot noir. These wines, however, differ considerably and are usually light in colour with subtle flavours. Pinot noir is also very sensitive for different vine diseases and susceptible to genetic mutations....
by Santi Basson | Practical in the cellar, Practical in the vineyard, Winetech Technical
We all get advice from time to time from colleagues, friends and relatives. Even our children often have something to say about what we should do or not do! But how do we know when to consider someone as a mentor? Pondering this question, it is wise to look at the...
by Lorren de Kock | 1 Sep, 2018 | Oenology research, Viticulture research, Winetech Technical
In South Africa and globally there is increasing pressure from retailers and consumers for the disclosure of carbon emissions of the products that they purchase. Introduction It is important for South African fruit and wine producers to comply with the market...
by Kobus Hunter, Neels Volschenk & Roberto Zorer | Viticulture research, Winetech Technical
Climatic conditions, such as temperature, wind and humidity, and valley floor/edaphic conditions, such as soil water availability and drainage, often force the establishment of vineyards towards complex terroirs where aspect, slope, relief, erosion and execution of...
by Astrid Buica, Carien Coetzee, Alex Schulze, Lucky Mokwena & Wessel du Toit | Oenology research, Winetech Technical
Thiols are recognised as character impact compounds with typical sensory attributes, such as “passionfruit”, “grapefruit”, “tomato leaf” and “gooseberry”, depending on the level at which they are present. Introduction In the field of science and technology, we are...
by Boredi Silas Chidi, Zovuyo Notshokovu, Mpho Mafata & Francois van Jaarsveld | Viticulture research, Winetech Technical
Maintaining the chemical composition of a wine is essential for the wine industry. Although the sugar-acid balance of a wine is of primary sensory importance, individual acids and oenological variables are equally important. Introduction Méthode Cap Classique (MCC)...
by Roberto Zorer, Neels Volschenk & Kobus Hunter | Viticulture research, Winetech Technical
Several web-tools, available from the Photovoltaic Geographical Information System (PVGIS) online service, are freely available for use in viticulture. The Photovoltaic Geographical Information System (PVGIS ©European Communities, 2001 – 2017) was developed from...
