4. The Vine Flashcards
(22 cards)
What termm is givn to the main Eurasian species of grape vines?
Vitis vinifera
Why are American-native vine species used in winemaking?
They, unlike Vitis Vinfera, are resistant to Phylloxera
What do vines use to stay upright?
Their tendrils to gri supporting structures
Where do buds form?
The joint between the leaf and the shoot
When do shoots turn woody?
The winter after they have grown
When do shoots become one-year-old wood?
The spring after they have grown
When does permanent wood exist?
Wood that is more than one-year-old
What usually makes up the ‘permanent wood’ of a vine?
The trunk and the arm
What is a ‘crossing’?
When a new variety is produced from two parents of the same species
What is pinotage a cross of?
Pinot Noir and Cinsault
What is a ‘hybrid’?
A vine whose parents come from two different vine species
A vine whose parents come from two different vine species is what?
A hybrid
When a new variety is produced from two parents of the same species, it is what?
A crossing
Hybrids will typically have what kind of parent?
One parent will be American vine
How do America vines resist Phylloxera?
Clogging its mouth with a sticky sap
How have European vines adapted to Phylloxera?
V. vinifera vines are grafted onto rootstock of American vines/hybrids
Joining a rootstock to another vine variety is called what?
Grafting
What is bench grafting?
Two canes are joined together by machine and stored in warm environments to encourage fusion
Two canes are joined together by machine and stored in warm environments to encourage fusion. This is called what?
Bench grafting
What is head grafting?
A cutting of a new variety is grafted onto the trunk of an old variety
A cutting of a new variety is grafted onto the trunk of an old variety. This is called what?
Head grafting
How long does it take a newly planted vine to produce a commercial crop?
3 years minimum
