10 articles in this issue
P.A. Myburgh
The effects of additional irrigation during berry ripening on juice and wine quality in Sauvignon blanc and Cheninblanc grapevines were investigated. In all treatments the grapevines were irrigated when berries reached pea sizein December. One treatment r... see more
J.C. Fourie,P.J.E. Louw,F.J. Calitz
The trial was conducted over a period of two years on a medium-textured soil near Robertson (33°50’S, 19°54’E),situated in the Breede River Valley of the Western Cape. The effect of seeding date on the dry matter production(DMP) and weed control efficacy ... see more
N.P. Jolly,O.P.H. Augustyn,I.S. Pretorius
The contribution by the numerous grape-must-associated non-Saccharomyces yeasts to wine fermentation has beendebated extensively. These yeasts, naturally present in all wine fermentations, are metabolically active and theirmetabolites can impact on wine q... see more
J. Satisha,G.S. Prakash
Among the four grape varieties that were subjected to moisture stress, Flame Seedless and Thompson Seedlessrecorded the highest relative water content, osmotic potential and water potential compared to Sharad Seedless andTas-A-Ganesh. Similarly, Flame See... see more
W.H. Groenewald,C.A. van Reenen,L.M.T. Dicks
Twenty-one lactic acid bacteria isolated from the intestinal tract of Drosophila simulans Stuvervant and nine from Merlot noir grapes were identified as L. plantarum by PCR with species-specific primers and 16S rDNA sequencing.The 30 isolates grouped into... see more
J.C. Brink,G. Holz,P.H. Fourie
The effect of fungicide spray cover on Botrytis cinerea infection in grape bunches was determined. Bunches were sprayed at pea size and bunch closure with different volumes of a mixture of fenhexamid and a yellow fluorescent pigment, and the percentage fl... see more
W.J. du Toit,K. Lisjak,J. Marais,M. du Toit
The effect of micro-oxygenation treatments on the composition of different South African red wines was evaluated. In some wines, micro-oxygenation led to an increase in colour density, with a corresponding change in colour, due to the formation of p... see more
H. Cloete,E. Archer,J.J. Hunter
In this study the vegetative growth parameters of normally developed and underdeveloped shoots were compared in an attempt to quantify shoot heterogeneity in a Shiraz/Richter 99 vineyard. A field trial was performed in the Stellenbosch area,Western Cape, ... see more
W.J. du Toit,J. Marais,I.S. Pretorius,M. du Toit
Oxygen can play an important role during the winemaking process. It can influence the composition and quality of the must and wine. Phenolic compounds are the main substrates for oxidation in must and wine. Oxygen addition leads to colour changes and the ... see more
International Congress
Papers and Posters Presented at the International Congress on Health and Wine. Wine as Part of a Healthy Diet and Lifestyle, 13 - 16 September 2005, Spier, Stellenbosch, South Africa.