Guyot Training — Single & Double Guyot

Guyot training is a cane-pruning system in which the vine maintains a short permanent trunk with the systematic annual replacement of its fruiting wood. Unlike spur-pruned systems such as Cordon de Royat, Guyot relies on longer canes that bear each season's fruit, paired with a short renewal spur kept to generate the following year's fruiting cane. Single Guyot (Guyot Simple) is a unilateral system with one fruiting cane and one renewal spur. Double Guyot (Guyot Double) is a bilateral system with two fruiting canes stretched in opposite directions to form a T-shape, supported by catch wires above. Both forms are traditionally used with a vertical shoot positioning trellis.

• Single Guyot: one fruiting cane plus one renewal spur; cane typically bears six to ten buds
• Double Guyot: two fruiting canes trained in opposite directions plus one or two renewal spurs
• Permanent trunk remains constant; only the fruiting and renewal wood is replaced annually
• The system is distinct from cordon training, where horizontal arms are permanent fixtures

Each dormant season, the pruner makes three essential cuts: removing last year's spent fruiting cane, selecting and retaining the new fruiting cane (typically eight to ten buds), and cutting back a renewal spur to two buds to provide options for next year. The renewal spur is always positioned lower on the vine than the fruiting cane to prevent the crown from migrating upward over time and to encourage balanced sap flow. In Double Guyot, one healthy cane is bent to the left and one to the right and tied to the lowest wire, reducing apical dominance and promoting even bud break along the full length of both canes.

• Cut 1 removes the previous vintage's spent fruiting cane entirely from the vine head
• Cut 2 selects the new fruiting cane, typically retaining eight to ten buds, and ties it to the lowest wire
• Cut 3 retains the renewal spur at two buds, always positioned below the fruiting cane on the head
• Bending canes horizontally reduces apical dominance, promoting more uniform shoot emergence along the cane

Guyot training gives the grower precise control over crop load, canopy density, and fruit exposure from one vintage to the next. Single Guyot inherently limits yield, which is central to the philosophy behind Burgundy's Pinot Noir and Chardonnay, where concentration and site expression take priority. Double Guyot provides greater yield potential while still maintaining the fruit-to-leaf balance needed to avoid underripe, herbaceous character. Because only the trunk is permanent, Guyot-trained vines are also less vulnerable to frost than spur-trained systems, which carry more above-ground woody tissue.

• Single Guyot produces a smaller crop, making it ideal for quality-focused producers seeking concentration
• Double Guyot allows higher yields while preserving canopy balance; a practical choice for larger-format appellations
• Annual cane-length adjustment (more or fewer buds retained) gives vintners vintage-by-vintage flexibility unavailable with fixed cordon systems
• Limiting permanent wood to the trunk reduces frost vulnerability and slows the accumulation of dead wood that invites trunk disease

Guyot training dominates cool to moderate climates where vigor control and terroir expression are the priorities. Single Guyot is most closely associated with Burgundy, where it suits the low- to moderate-vigor soils of the Cote d'Or and is considered the benchmark for Pinot Noir and Chardonnay production. Double Guyot is most common in Bordeaux, Champagne, Alsace, Southwest France, Jura, Savoie, and the Loire Valley, and has been widely adopted in New World regions including Oregon, Washington, California, and Australia. In some French appellations, including Sancerre, regulations specifically require Guyot pruning and designate the number of buds permitted per cane.

• Single Guyot: most associated with Burgundy in France, and with Piedmont, Friuli, and Tuscany in Italy
• Double Guyot: most common in Bordeaux, Champagne, Alsace, Southwest France, Jura, Savoie, and the Loire
• Widely adopted in Oregon, Washington, California, and Australia for both Pinot Noir and other varieties
• AOC law in France may mandate Guyot pruning and regulate the number of buds, embedding the system directly into appellation rules

Guyot pruning demands genuine skill and annual judgment. The pruner must assess each vine individually, selecting the healthiest, well-ripened cane with the best bud distribution, and positioning the renewal spur to prevent the crown from creeping upward over successive vintages. Because the system requires tying canes to wires, it is more labor-intensive than mechanical spur pruning, though Double Guyot in large-format vineyards can accommodate limited mechanical assistance. Trunk diseases such as Eutypa dieback (caused by Eutypa lata) and Esca remain key management concerns, as pruning wounds are the primary entry point for these pathogens. Later pruning in the dormant season reduces wound susceptibility.

• Renewal spur must always be positioned below the fruiting cane to prevent the vine crown from rising over time
• Cane length can be adjusted year to year: fewer buds retained for concentration, more retained to balance vigor in strong years
• Pruning wounds are the main entry point for Grapevine Trunk Diseases including Eutypa dieback; later-season pruning reduces infection risk
• Single Guyot is generally not mechanized; hand-pruning allows vine-by-vine assessment essential for quality viticulture

The Guyot system has become synonymous with quality viticulture across France and beyond. In Burgundy, Single Guyot is the defining standard, closely linked to the region's identity and its pursuit of low-yield, high-expression wines from Pinot Noir and Chardonnay. Double Guyot is the dominant cane-pruning form in Bordeaux, where it supports the balanced expression of Cabernet Sauvignon and Merlot across varying vintages. The system has also become widely established in cool New World regions, including Oregon and New Zealand, where producers apply the same principles of annual renewal and crop-load control to achieve European-style quality benchmarks. In Champagne, Double Guyot is a permitted and widely used pruning form across the appellation.

• Burgundy is most closely associated with Single Guyot (Guyot Simple) for Pinot Noir and Chardonnay
• Double Guyot is the standard cane-pruning form in Bordeaux and is also common in Champagne, Alsace, and the Loire
• Oregon and New Zealand have embraced Guyot training as a benchmark for their Pinot Noir production
• The system's global spread accelerated after phylloxera, as replanting on new rootstocks allowed a clean adoption of organized, row-trained viticulture