Viticulture & Vinification Flashcards
What process involves the intracellular fermentation of whole berries, sugars inside the grape are converted to alcohol and CO2 in the absence of yeast?
Carbonic Fermentation
What is the order of seasonal events in the life of a vine?
Budbreak Flowering Fruit Set Veraison Harvest (vendage)
The metabolism of yeast cells converts sugars into what two things?
Alcohol and CO2
The technique of grafting vitis vinifera vines onto American rootstock was developed in response to what?
Phylloxera (louse)
What is pigeage?
Fermenting wine is punched down
Explain head trained vines
No permanent cordon Can be supported by a simple stake or not at all Trunk ends in a knob (or head) Can be spur-pruned OR cane-pruned AKA - "Bush vines"
Explain cordon-trained vines
Generally require a trellising system
At least one permanent cane that extends from the trunk (called arm or cordon)
Spur-pruned
Example of Cane-Pruning system
Guyot System developed in 1860 by Jules Guyot
Example of Spur-Prune/Head trained system
Gobelet System - ancient technique common in S. Rhone & S. Italy
Example of Spur-Prune/Cordon trained system
Cordon de Royat - style for PN in Champagne
Pierce’s Disease is an example of what type of disease?
Bacterial
What does the term mesoclimate refer to?
The climate of a single vineyard site
Elevage refers to what stage in the wine’s production?
Maturation
What does the term batonnage mean?
lees stirring during fermentation which adds complexity and richness
What is remontage?
fermenting wine is pumped over the top of the cap
