Wine Tasting Event: Kalterersee-Charter Wines 2016 and other red wines from Caldaro...
Modern Method: Wire Frames
Since the mid 80s farmers have begun planting new vines using the new wire frame method. This conversion has qualitative reasons. However, the main advantage of the pergola is that the ground underneath the leaf top ‘roof’ retains more humidity.
On the other hand, the grapes mature with relatively less direct sunshine. When cultivating the fresh and fruity Vernatsch wine, this may be an advantage. However, most of the other varieties are not able to develop their aromas optimally using the pergola. Thus, the Guyot-wire frame system offers benefits for every variety since each individual leaf and grape receives ideal sunshine.
The pergola system allows approximately 3,000 to 5,000 vines to be cultivated pro hectare and when using the Guyot-system, the density of the vines ranges between 5,000 and 8,000. When comparing the yields of these two systems, it becomes obvious that one vine on the Guyot-system only needs to produce half of the amount that one vine on the pergola system must produce. It becomes obvious that this means each vine can produce more full-bodied wines. Therefore, the emerging trend is to cultivate exclusively the Vernatsch using the pergola system, since this variety can best unfold its quality using the traditional system.
However, a few experts point out that due to sustained climatic temperatures and the trend in higher alcohol levels in wine, the pergola system could undergo a revival in the very near future.