The Vine Flashcards
What is the primary species of wine used to make wine?
Vitis Vinifera, although some Native American vines are used as well, and Native American rootstocks are utilized across the globe because they are resistant to phylloxera.
How can a grower preserve and reproduce the unique characteristic of a certain varietal?
Cutting or layering; not planting seeds.
A cutting is a section of a shoot can be replanted.
Layering is when a cane is bent down so that a section is buried; it takes root and the cane linking the new plant to the old is cut; this system is more susceptible to phylloxera though.
What is a clone?
A vine or group of vines that shows a particular set of unique characteristics, but isn’t different enough to be considered a unique variety.
What are the key parts of the vine?
Leafs, for photosynthesis;
Buds, growth for the following year;
Tendrils, to support the vine
Flowers and Berries
Roots, to absorb water and nutrients;
Permanent Wood, any wood under a year old, usually the trunk and the arms, if any
One Year Old Wood, last year’s shoot become woody and become canes or spurs, depending on how they’re pruned
What is a crossing?
When a new variety is produced from two parents of the same species (Cinsault x Pinot Noir = Pinotage).
What is a hybrid?
When a new variety is produced from parents of two different species, such as Vidal.
What is grafting?
The technique used to join a rootstock and a Vitis Vinifera variety, typically to prevent phylloxera.
Two techniques are bench grafting and head grafting.
Bench grafting is accomplished by machine, fusing the two sections together, prior to planting.
Head grafting is when the existing vine is cut back to the trunk and a new bud or cutting is grafted onto it.
