Pergola & Tendone Training Systems of Northern Italy

Pergola and Tendone are both high-trained overhead canopy systems, but they differ in structure and geography. Pergola is a patchwork of individual vine structures supported by vertical poles, with vines growing up to the overhead framework and spreading across it. The Pergola Trentina variant has a canopy roof inclined 20-30 degrees upward relative to the ground, while Pergola Veronese uses a near-horizontal roof. Tendone, the Italian word for 'big tent,' forms a continuous and seamless overhead canopy across an entire parcel, rather than individual structures. Pergola predominates in northeastern Italy, particularly Trentino and the Veneto; Tendone is concentrated in central-southern Italy, especially Puglia and Sicily, and is used primarily for table grapes and increasingly for wine grapes in hot climates.

• Pergola Trentina: inclined roof at 20-30 degrees, long pruning retaining around 30-40 buds; typical of Trentino for Teroldego, Nosiola, and Müller-Thurgau
• Pergola Veronese: near-horizontal roof, 1 to 4 shoots of 10-15 buds; used in Valpolicella for Corvina, Corvinone, Rondinella, and related varieties
• Tendone: continuous canopy on posts planted about two meters apart; each vine has 3-5 fruiting canes on horizontal wires; primarily Puglia and Sicily for table grapes and some wine grapes

In Pergola systems, vines are trained with a vertical trunk reaching the overhead framework at 1.6-1.9 meters, where fruit-bearing shoots are positioned along supporting wires. The overhead foliage creates a natural canopy that shades the clusters hanging below, protecting them from direct sunlight and reducing temperature stress. In Tendone, vertical posts are planted approximately two meters apart, cords are strung between them, and the resulting tent-like structure covers the entire vineyard parcel. In both systems the fruit hangs in the shade beneath the leaf canopy, moderating solar radiation directly on the berry surface. A Masi Technical Group study confirmed that Pergola Veronese-trained vines in Valpolicella kept clusters up to 20 degrees Celsius cooler than Guyot-trained vines on the same hillside plots.

• Trunk height of 1.6-1.9 meters in Pergola; fruit heads carry 8-12 buds per vine, depending on variant and pruning approach
• Pergola Veronese pruning retains 1-4 shoots of 10-15 buds each; Pergola Trentina uses long pruning retaining approximately 30-40 buds of medium length
• Pergola's open structure encourages air circulation around clusters, helping reduce fungal disease pressure in humid valley and foothill sites

The shade provided by the Pergola canopy moderates berry temperature during ripening, slowing sugar accumulation relative to exposed systems and preserving natural acidity. Research at Masi showed that Pergola Veronese produced berries with higher anthocyanins and fewer harsh tannins compared to Guyot-trained vines, and eliminated burnt-berry defects in warm seasons. For sparkling and aromatic white wines in northeastern Italy, measured ripening under Pergola supports acidity retention and herbaceous and floral aromatic development, which are key to the character of Glera, Pinot Grigio, and Nosiola. For Valpolicella reds, the moderate ripening profile is valuable for appassimento, as healthier, cooler-ripened Corvina and Corvinone retain integrity during the extended drying period needed for Amarone production.

• Pergola shading keeps clusters cooler than VSP or Guyot in warm seasons, protecting anthocyanins and avoiding sunburn on berries
• Measured ripening under Pergola preserves natural tartaric and malic acidity, which is critical for Prosecco production and aromatic white wine styles
• Labor management benefits include more evenly spread peaks of harvest activity compared to VSP systems, where grapes ripen faster and simultaneously

Pergola is among Italy's oldest vine training methods, with visual references appearing in Roman mosaics and medieval manuscripts. The Romans documented the tendone system of vines trained overhead along a pergola-like structure, and a medieval Corutti family manual from Verona around 1375 depicted similar high-training forms. Today, Pergola Trentina remains the defining training system of Trentino, associated with Teroldego on the Campo Rotaliano plain and Nosiola in the Fontanasanta hills above Trento. Pergola Veronese is the traditional system of Valpolicella, where it shapes Amarone, Ripasso, and Valpolicella Classico production. The Conegliano Valdobbiadene hills, a UNESCO World Heritage Site, use a mix of systems including Sylvoz, Bellussera, and VSP for Prosecco Superiore, with Pergola less prevalent on the steepest Rive sites. Tendone's climate-buffering properties are also drawing renewed interest globally as producers in Argentina, Galicia, and even Napa explore high-trained canopy systems to manage heat stress.

• Pergola variants include Trentina (inclined roof), Veronese (horizontal roof), Romagnola, and Simple, each adapted to local topography and grape varieties
• Valpolicella's Pergola Veronese tradition dates back centuries, recently reinforced by Masi's scientific research comparing it against Guyot training from 2012 onward
• Renewed global interest in high-canopy systems, including Argentina, Galicia (for Albarino), and potential adoption in Napa Valley, driven by climate warming and labor efficiency

Pergola training is chosen for several reasons: to shade clusters from intense sun in warming climates, to preserve freshness and acidity in white and sparkling wine production, and to address labor management challenges by spreading ripening over a longer window. A senior Italian Master of Wine noted that Pergola 'brings more stability' to vineyard labor scheduling compared to VSP systems where grapes ripen faster and simultaneously. The system is also suited to fertile soils with vigorous vine growth, where a larger canopy can productively balance vegetative and reproductive energy. Tendone is selected primarily where hot, arid conditions require maximum shade protection for table grapes, and is increasingly explored for wine grapes in the same climatic zones as a heat mitigation strategy.

• Pergola chosen in warm seasons to prevent sunburn and excessive sugar accumulation; Masi study showed up to 20 degrees Celsius cooling effect on clusters vs. Guyot
• Particularly suited to vigorous, fertile sites where the large canopy can absorb vine energy productively without excessive shading of the fruit zone
• Tendone suited to hot and arid Mediterranean climates; its application to wine grapes in Puglia and elsewhere is a growing area of research and commercial interest

In Valpolicella, Masi is the most prominent advocate of Pergola Veronese for its hillside sites, with a documented three-year viticultural study from 2012 validating the system's quality advantages for Amarone and Valpolicella Classico production. In Trentino, Foradori retains some of its oldest Teroldego vines on Pergola training, including 70- to 80-year-old vines used as massal selection stock for its flagship Granato bottling; Elisabetta Foradori's broader estate transformation moved most vines from Pergola to Guyot to reduce yields and concentrate fruit. In Valdobbiadene, Bisol, with a family history traced to 1542, farms seven acres within the 107-hectare Cartizze sub-zone and produces its Cartizze as a Dry-style Prosecco Superiore. Nino Franco, founded in Valdobbiadene in 1919 and now in its fourth generation under Primo and Silvia Franco, is a reference producer for Prosecco Superiore, with the Primo Franco bottling as its signature wine.

• Masi (Valpolicella Classica, founded 1772): benchmark producer for Amarone and Ripasso; returned to Pergola Veronese on hillside sites after a 2012 viticultural study showed quality advantages over Guyot
• Bisol (Valdobbiadene, since 1542): 20 vineyard holdings in Prosecco Superiore DOCG; farms 7 acres within the 107-hectare Cartizze sub-zone; Cartizze produced as Dry style by tradition
• Nino Franco (Valdobbiadene, founded 1919): fourth-generation family winery; Primo Franco took the helm in 1982; Primo Franco is the winery's signature vintage Prosecco Superiore