Viticulture research

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An overview on the genetic and biological variability of viruses in vineyards

Substantial input of two South African laboratories to worldwide knowledge. To date, 70 virus species that can infect grapevines have been recorded.1 Two groups of viruses are especially detrimental for the grapevine industry from an economic point of view. These are...
Grape flavan-3-ol evolution (Part 4): Effect of sequential harvesting on the sensory properties of the wines

Grape flavan-3-ol evolution (Part 4): Effect of sequential harvesting on the sensory properties of the wines

The aim of this study was to evaluate wines produced by grapes that were harvested at different ripeness levels using berry sugar accumulation as a physiological indicator.   Introduction Optimal berry ripeness depends on the wine style goal. The sensory...

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Grape flavan-3-ol and anthocyanin composition under altered light and temperature conditions in Cabernet Sauvignon (Part 3)

Grape flavan-3-ol and anthocyanin composition under altered light and temperature conditions in Cabernet Sauvignon (Part 3)

This study aimed to investigate flavan-3-ol and anthocyanin evolution and composition under altered microclimatic conditions in Cabernet Sauvignon grown in the Stellenbosch Wine of Origin District.   Introduction Flavonols are colourless compounds which are...

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Grape flavan-3-ol composition under altered light and temperature conditions in Cabernet Sauvignon (Part 2)

Grape flavan-3-ol composition under altered light and temperature conditions in Cabernet Sauvignon (Part 2)

This study aimed to investigate flavan-3-ol composition under altered microclimatic conditions in Cabernet Sauvignon grown in the Stellenbosch Wine of Origin District.   Introduction Proanthocyanidins or condensed tannins are mostly situated in the solid parts...

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Grape flavan-3-ol evolution under altered light and temperature conditions in Cabernet Sauvignon (Part 1)

Grape flavan-3-ol evolution under altered light and temperature conditions in Cabernet Sauvignon (Part 1)

This study aimed to investigate flavan-3-ol biosynthesis under altered microclimatic conditions in Cabernet Sauvignon grown in the Stellenbosch Wine of Origin District. This was part of a larger study in which flavonoid evolution and composition by manipulating the...

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