Viticulture in the South African Wine Industry

The wine industry in South Africa is undergoing anAlong with the type of variety chosen, soil,
exciting period of change, both in the vineyardclimate and winemaking techniques, these vital
and in the winery. Winemakers are experimentingpractices are the main factors which determine
with new varieties of vine, as well as new clonesthe quality and character of a wine.
of existing varietals such as Chardonnay andWhen a vineyard is established, it is important that
Cabernet Sauvignon. Large-scale experimentationa thorough study is made of the soil and climatic
with rootstocks is taking place to establish whichconditions to ensure that the most suitable
planting material is particularly suited to conditionscultivation methods are chosen. Thorough soil
at the Cape, co-ordinated by the Vinepreparation is essential to create an environment
Improvement Board.for plant roots in which air and moisture are kept
As in other New World countries, viticulturists arein the right proportion to solid material, and to
hard at work matching vine varieties to soils andensure that there is sufficient nutrition to promote
meso-climates in order to achieve the bestthe best growth and production.
results. Vineyard life in South Africa is similar toThe choice of variety will depend on the
Europe's although South Africa's viticultural yearcomposition of the soil, the climate, where the
begins in September. While preparations for thevineyard is situated and what kind of wine is
vintage are being made in Europe, the vines indesired. Varieties bearing heavier harvests are
South Africa are just beginning to bud.generally planted in areas under irrigation. In cooler
Once buds have formed, the vines must be keptregions, and where the soil is not very fertile,
free from pest, disease and weed, and are oftenvarieties which grow less densely are planted, as
pruned if growth becomes too vigorous. Floweringwell as those that produce smaller but higher
normally takes place in November and inquality harvests.
December the young grapes begin to swell andPreviously it was generally accepted that the
grow. At this stage the vines are often 'topped'higher the yield, the lower the quality of wine and
to improve air circulation around the grapes andvice versa. Research has shown this approach is
thus minimise the risk of fungus or rot.not quite correct. Of great importance is the
January in the Cape heralds the beginning ofbalance between leaves, which function
summer and, as the temperatures increase, earlyeffectively because of good exposure to sunlight
grape varieties begin to ripen. The bulk of theand the quantity of grapes harvested. When
harvest takes place in February and the sugarthere are not enough functioning leaves to sustain
acid ratio of the grapes is checked daily so thata large crop, the quality will be lower.
each variety is harvested at optimum ripeness.Vines are climbing plants and are suitable for
In most South African vineyards harvesting istrellising. Stronger growing plants are usually
carried out by hand, although machines are usedtrellised and can carry heavier harvests. As
on some farms. The grapes are picked intobunches hang higher off the ground, there is less
baskets and transported in bins to the winerychance of rot as a result of damp. The decision
where vinification begins.whether to trellis at all, and the type of trellising
Viticulture Practices:system used, is determined by the soil potential,
Viticulture involves practices such as soilvariety, climate, growth and vigour of the vines.
preparation and tilling, growing and planting ofIn areas where frost damage is prevalent trellising
varieties, trellising and pruning of vines, andis required, while dry land vineyards with a
combating disease.weaker growth are often not trellised.