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Term for the period during the vegetation cycle in which there is no or very little precipitation (rain). The complex interrelationships of soil water supply, air temperature and air humidity are important for assessing the negative impact on viticulture. This also depends on the area and the climate prevailing there. In normally cool and humid wine-growing regions, drought or drought can also be advantageous, especially for the production of red wine, if the resulting lower growth results in a natural, quality-enhancing yield restriction, as it were.

Dürre / Trockenheit - Weintrauben und Blätter

In extreme cases, however, this leads to water stress (drought stress) on the vine, which has a negative effect on the yield and quality of the wine, especially at the time of maturation (ripening) (in Europe, this is usually between August and September). Heat stress also occurs in conjunction with high daily temperatures above 40°C. In hot and dry regions with too little rainfall, artificial irrigation is used as a preventive measure. This is common in southern countries or overseas such as Australia or South America. Within the EU, such measures are usually the exception or subject to approval.

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