Flashcards in Viticulture Deck (26):
How many acres of land are planted with grapes on the planet
More than 20 million acres
What a is the latitude parallels that is best for growing grapes
Between the 30th parallel and the 50th parallel of latitude.
What is the canopy
The vines leaves and shoots which often need to be controlled through different practices to shade the grapes, maximizing leafs exposure to sun or allow air circulation
What is viticulture
The art and science of growing grapes for the purpose of making wine
What is a mutation
A vine that has developed different characteristics, flavored or qualities from an imperfect genetic reproduction
What are three mutations of the Pinot Noir grape
Pinot Grigio Pinot Blanc and Pinot Meunière
What is a cross
If the pollen of one varitale is used to pollinate the flowers of another the resulting seeds in the grape produced through reproductive actions will be different from the seeds of the two-parent vines
What are two crosses and what grapes were used for to make those crosses
Cabernet sauvignon is a cross of Cabernet franc and Sauvignon blanc.
Pinotage is a cross between Pinot noir and cinsaut.
What is a clone
A clone is a vine that is an exact DNA copy of another vine, achieved through asexual reproduction
What is veraison?
This is when the color of the grape changes and turns red for varietal with pigment in their skin and the grapes soften allowing the flow of water and sugar from the leaves
What is the typical time from bud break to harvest
Four to six months
What is vintage
The annual growing cycle of the vine
What is grafting
Taking a cutting from one plant and attaching it to another. In viticulture this most commonly involves taking cutting from a donor Vine called a mother vine and attaching it to the rootstock of another plant. Using a special V shaped cut that fits both pieces firmly together
What is a bench grafted vine
A cutting and rootstock that was already grafted at a nursery
What is dry farming
The procedure of growing vines without using irrigation . Many areas that receive ample rainfall do not have to worry about irrigation, but in those regions that do, limiting irrigation water will put vines under very stressful conditions
What are old vines
The older the vine gets the slower it produces. Wines made from old vines are typically more intense, complex and concentrated
What is green harvest?
If causing stress in vines is not possible, growers can simply lessen the yields by cutting a percentage of the vines grapes when they first form. This forces the vine to send energy, sugar and flavor to the remaining grapes, concentrating their flavors.
What does the French term "virile vignes" mean
Old vine grapes
What is the German term for old vine grapes
Vigna vecchia means what in Italian
Old vine wine
What is the Spanish term for old vine wine
What is diurnal temperature
A term that means it is warm during the day and very cool at night allowing the grapes to develop enough sugar from the sun and enough acid from the cool air for better balance in the grape
How does soil drainage effect the grapes
Soil that have slower drainage like clay will cause more vigorous growth on the vine. Soil that has better drainage like sand, or gravel will hold less water slowing growth and in turn stressing the grape more
True or false - the more stress a grapevine is under, the more the grape will produce.
False, the opposite is true the higher the stress the lower the yield and better the concentration of flavor
Grapes grown in a warmer climate will produce wines with _______________ than a wine from a cool climate
Less acid and more alcohol