Chapter Four: Viticulture Flashcards
What is the portion of the vine that includes leaves, branches, and fruit?
Canopy
What are the vine’s young branches called, while they are young and pliable?
Canes
What are the vines branches–if they are retained year after year–after they have thickened?
Cordons (arms)
What is inserting an unrooted cutting into the trunk of an existing vine called?
Field grafting
At what age do vines begin to decline?
20 years
What are the ideal latitudes for commercial viticulture?
30 to 50 degrees
What is the minimum temperature required to begin the emergence of new greenery in the spring?
50 degrees F
10 degrees C
What does one call sap flowing upward from the trunk out to the canes, before the emergence of new greenery?
Weeping
What does one call the emergence of tiny shoots at the beginning of the growth cycle of the vine?
Bud break
What does one call the transition from flower to grape berry?
Fruit set (berry set)
What is the condition in which many flowers do not develop into grapes?
Coulure (shatter)
What is the abnormality resulting in many small, seedless berries in the grape bunches?
Millerandage
What is the beginning of ripening called?
Veraison
What is the typical time period from bud break to harvest?
140 to 160 days
What is the process by which the vine produces sugar?
Photosynthesis
