11 articles in this issue
B. Isci,Z. Gokbayrak,N. Keskin
The total phenolic and vitamin C contents of organic table grapes were determined by spectrophotometry and HPLC, respectively, after several quality-increasing treatments were applied at véraison for two growing seasons. Cane girdling and cluster-berry th... see more
D.H.M. Kruger,J.C. Fourie,A.P. Malan
In South Africa the use of annual cover crops is an established soil cultivation practice in vineyards that is environmentally friendly and financially sustainable in the long term. Species from the Brassicaceae family are well known for their biofumigati... see more
J.C. Fourie,H. Theron,C.H. Ochse
Pennisetum glaucum L. cv. Babala (pearl millet) established as a summer catch crop followed by Avena sativa L. cv Palinup (oats) established as a winter catch crop were irrigated with winery wastewater diluted to eight chemical oxygen demand (COD) levels ... see more
K. Krüger,D.L. Saccaggi,M. van der Merwe,G.G.F. Kasdorf
The vine mealybug, Planococcus ficus (Signoret), and the longtailed mealybug, Pseudococcus longispinus(Targioni Tozzetti), are vectors of grapevine leafroll-associated virus 3 (GRLaV-3), one of the mostabundant viruses associated with grapevine leafroll d... see more
F. Jara-Rojas,S. Ortega-Farías,H. Valdés-Gómez,C. Acevedo-Opazo
A study was carried out to evaluate the leaf gas exchange relations and water-use efficiency (WUE) of ungrafted Carménère (Vitis vinifera L.) grapevines growing under field conditions and different levels of water stress. Stomatal conductance (gs), transp... see more
B. Bagheri,F.F. Bauer,M.E. Setati
The current study evaluated the diversity of yeast species in Cabernet Sauvignon grape must derived from three neighbouring vineyards from a similar terroir but on which significantly different management practices are employed. The fermentation kinetics ... see more
E. Allsopp
Grapevine leafroll disease is widely accepted to be the most damaging grapevine virus disease in South Africa. The current industry strategy to limit leafroll infection in new vineyards includes treating newly planted grapevines with a systemic insecticid... see more
A. Xu,J.-C. Zhan,W.-D. Huang
Vitis vinifera L. cv. Cabernet Sauvignon berries and calli were irradiated with ultraviolet C (UV-C) to investigate the effects on the biosynthesis of stilbene. The stilbene content in the berry skins was enhanced significantly after 10 min of UV-C irradi... see more
G. Montevecchi,F. Masino,G. Vasile Simone,E. Cerretti,A. Antonelli
Malvasia di Candia aromatica is an aromatic white grape (Vitis vinifera L.) cultivar that grows in the Emilia-Romagna and Lombardy regions and is used for manufacturing sweet and dry white wines. A study of the gas chromatography analysis of the aromatic ... see more
J. Xue,F. Fu,M. Liang,C. Zhao,D. Wang,Y. Wu
The kinetics of ethyl carbamate (EC) formation was investigated during wine storage to evaluate the potential risk of EC formation in wine. The study monitored the EC, urea and citrulline concentration at different storage temperatures and wine pH. We fou... see more
L.L. Duan,Y. Shi,R. Jiang,Q. Yang,Y.Q. Wang,P.T. Liu,C.Q. Duan,G.L. Yan
The synergistic influences of three unsaturated fatty acids (UFAs, namely linoleic acid, oleic acid andlinolenic acid) on the fatty acid composition of Saccharomyces cerevisiae and major volatile compoundswere investigated in synthetic grape juice. The ad... see more