Viticulture/Vinification Flashcards

1
Q

What organization in France supports “La Lutte Raisonée?”

A

Terra Vitis

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2
Q

What type of sugar is produced by photosynthesis?

A

Sucrose

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3
Q

What is autolysis?

A

Breakdown of dead yeast cells to form lees

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4
Q

What is Pierce’s disease? How is it spread?

A

A bacterial disease that renders vines incapable of producing chlorophyll and kills them in 1-5 years. It is spread by the glassy winged sharpshooter, a leaf hopping insect

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5
Q

What is the temperature range required for fermentation?

A

50-113F

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6
Q

What is vendange in English?

A

Harvest

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7
Q

What can reverse osmosis be used for in winemaking? Is it allowed in EU countries?

A

Controlling alcohol levels

Yes, to 2%

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8
Q

What is the French term for pumping over the cap?

A

Remontage

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9
Q

Who was the father of biodynamic viticulture?

A

Rudolf Steiner

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10
Q

What are the three stages of the process to shape an oak barrel?

A

Warming (Chauffage)
Shaping (Cintrage)
Toasting (Bousinage)

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11
Q

What compounds are responsible for oaky aromas in wine from barrels?

A

Lactones

Vanillin

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12
Q

What is peronospora?

A

Downy Mildew- Fungal disease. Attacks green parts of vines and limits photosynthesis. Doesn’t survive in dry regions. Bordeaux mixture was created to combat this.

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13
Q

What is Bordeaux Mixture?

A

Spray mix of copper sulfate, water and lime. Developed in 1885 to combat downy mildew

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14
Q

How does the California Heat Summation Index define a typical growing season?

A

April 1st to October 31st

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15
Q

What is grey rot also known as?

A

Botrytis bunch rot

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16
Q

What species of oak is primarily used for cork production?

A

Quercus Suber

17
Q

What percentage of a wine must be the stated variety in the EU?

A

85%+

18
Q

What is the scientific name for the species of American oak?

A

Quercus Alba