Viticultural Techniques/ Problems Flashcards
What are two Grand Cru terraced vineyards in Alsace?
Rangen and Kastelberg are two Grand Cru sites that are terraced due to the steepness of the terrain.
How high are most vines trained on the sloping vineyards of Alsace?
What are the benefits of this height?
Vines are generally trained at a height between 60-90cm.
These heights allow for a maximum amount of sunlight to hit the vines.
What sort of vine density can be found in Alsace vineyards?
Alsace vineyards are generally planted to a density between 4,400-4,800 vines per hectare. The minimum required for Alsace AOP is 4,000 vph. The minimum required for Alsace GC is 4,500vph
What type of vine training is permitted under Alsace GC AOP regulations?
Alsace GC AOP vineyards must use a single or double guyot training method.
Why choose simple guyot ?
Conditions and desired outcomes of simple guyot training system:
Low to the ground
For cool climates / combats late season frosts
For low-moderate vigour vines
Promotes lower yields
What is the simple guyot vine training system?
The Simple guyot vine training system is a cane pruning system.
It has a trunk, one fruiting cane with 6-10 buds and one renewal spur for next year’s growth.
What is the Cordon de Royat vine training system?
The Cordon de Royat is a spur-pruning system.
The trunk is trained horizontally along a wire.
4-8 spurs grow along its length/ each producing 2-4 buds a season
Why choose the Cordon de Royat vine training system?
Conditions and desired outcomes of simple guyot training system:
Suited to warm climates/ Drought prone areas
Suitable for mechanical harvesting
Potential for higher yields
What are some diseases and problems in Alsace vineyards?
Powdery Mildew and grey rot are concerns in Alsace vineyards.
