Viticulture Flashcards
What wine region is affected by rain shadows?
Alsace
Rioja
Washington State
Mendoza, Argentina
All the Above
Which of the following terms refers to the climate of a single vineyard site?
Mesoclimate
What is a rain shadow?
A dry area on one side of a mountain opposite the wind, rain, and generally poor weather.
The majority of the world’s vineyards are planted:
Between the 30* and 50* latitude lines
Which type of climate is defined by its proximity to a large body of water?
Maritime
What is the positive effect of wind in a vineyard?
Dries a vineyard to prevent disease
Can warm a vineyard
Can cool a vineyard
All of the above
What is phylloxera?
A vine louse that destroyed many of the worlds vineyards in the mid-to-late 1800s.
Root Stalk Grafting
By cutting off the top part of the vine (scion) and placing it on the root stalk of a different species of a vine you can attach them. Native American root stalk was the solution to phylloxera.
Why is “green harvesting” practiced?
Reduces the amount of fruit being produced by the vine and concentrates what remains.
Which of these is not a moderator that can help warm a microclimate?
Vine training system
Most quality grape varieties we see today are made from which vine species?
Virus vinifera
Factors that affect wine style and quality:
Location/Geography
Climate
Topography/aspect
Soil
Grape varieties planted
Viticultural practices
&
Yearly weather (vintage)
Harvest
Historical background
Regional wine law
Define Climate:
The composite or prevailing weather conditions in an area in general or over a long period of time.
&
Temperature, humidity, air pressure, rainfall, sunshine, cloudiness, wind, and other atmospheric elements are all factors and remain relatively stable from year to year.
Macroclimate
The climate of an area like a wine region
Mesoclimate
The climate of a vineyard
Microclimate
The climate around a single vine
