Viticulture Flashcards

1
Q

Put the stages of the annual growth cycle of the vine in chronological order. Include winter dormancy and weeping.

A

Winter Dormancy, Weeping, Bud break, shoot and leaf growth, photosynthesis begins, flowering, berry set, veraison, phenolic maturity and harvest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The process by which materials are moved from one part of the plant to another

A

Translocation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The process by which sunlight is converted into sugar

A

Photosynthesis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

The process by which water evaporates through openings on the underside of the leaves

A

Transpiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The process by which sugar is broken down and converted into biological energy

A

Respiration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A problem that causes poor fruit set, also known as shatter

A

Coulure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

A soil-based roundworm that has become more prevalent with the increased use of shallow-rooted rootstock

A

Nematode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

A mold that is sometimes beneficial, also known as noble rot

A

Botrytis Cinerea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A fungal disease also known as powdery mildew

A

Odium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

A problem with abnormal fruit set that causes grape bunches to have a high proportion of small, seedless berries mixed in with normal, larger berries

A

Millerandage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A fungal disease also known as downy mildew

A

Peronospora

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A bacterial disease spread by insects such as the glassy-winged sharpshooter

A

Pierce’s Disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A destructive louse that feeds off the roots of vinifera vines

A

Phylloxera

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

True of False: In general, a lower latitude translates into a warmer climate

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

True of False: The Oechsle system of measuring grape ripeness is widely used in France

A

False (Germany)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

True of False: Photosynthesis slows, but does not stop at night

A

False (Photosynthesis needs sunlight)

17
Q

True of False: The annual growth of the vine is considered to begin each year with bud break, which starts once temperatures reach 65F in the spring

A

False (50F)

18
Q

True of False: When producing dry table wines, the typical time from bud break to harvest is 140 to 160 days

A

True

19
Q

True of False: Ideally, soil should enable the vine’s roots to access water when needed, but also ensure that excess water is drained away

A

True

20
Q

True of False: In the Northern Hemisphere, a vineyard on a slope that faces north gets the most sun.

A

False (Vineyard facing south)

21
Q

True of False: Regions with a continental climate generally experience hotter summers and colder winters than regions with a Mediterranean climate

A

True

22
Q

True of False: Transpiration is the process by which water evaporates through openings on the underside of the leaves known as stomata

A

True

23
Q

True of False: A mediterranean climate is considered to have too short a growing season in order for grapes to ripen on a regular basis

A

False (Marginal Climate)

24
Q

True of False: In general, sugar as measured by degrees Brix will convert to alcohol by a conversion factor of 55%

A

True

25
Q

True of False: Photosynthesis tends to slow down at temperatures below 50F

A

True (Optimal temps: 70-85F

26
Q

True of False: A refractometer is used to measure the amount of rainfall that penetrates the topsoil to a depth of 6 inches

A

False (Refractometer measures the Brix (grape sugars)

27
Q

True of False: Head-trained vines sometimes refereed to as a goblet-style vine, do not typically require vine trellis system.

A

False (Head-trained vines are typically free standing and do not require a support system)

28
Q

Vine training process by which the new year’s shoots and leaves are trained upward and braced by trellis wires as they grow

A

VSP (vertical shoot positioning)

29
Q

Who developed The philosophy of biodynamics in the 20th century

A

Rudolf Steiner

30
Q

The natural aspects of a vineyard

A

Terroir

31
Q

System used in Germany and Switzerland to measure sugar density

A

The Oechsle

32
Q

Physical maturity refers to the level of

A

Sugar Maturity