Viti Terms Flashcards

1
Q

graft / grafting

A

viticulture technique where the sections of two different plants are joined so that their tissues unite

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2
Q

ampelography

A

the study of grape vines

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3
Q

Refractometer

A

instrument used to measure the must weight of grapes, by measuring the reflected light.

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4
Q

bench graft

A

grafting done in a nursery

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5
Q

Vitis vinifera

A

European and Middle Eastern species of grapevines- translates into “grapes to make wine”

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6
Q

aspersion

A

spraying the buds or grapes with water to protect against late frosts or freezes, the water turns to ice which protects the buds from colder temperatures

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7
Q

translocation

A

movement of sugars, nutrients, and water from one part of the grape vine to another part

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8
Q

Vitis rotundifolia

A

Mostly South Eastern USA North American species of grapevines- includes Muscadine and Scuppernong

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9
Q

field graft

A

grafting done in the vineyard

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10
Q

micro-climate

A

the climate within the canopy of the vine

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11
Q

bleeding

A

a.k.a. ‘weeping.’ The first sign aft winter that the vine is coming out of dormancy. Gen occurs in Feb (N. Hem); August (S. Hem)

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12
Q

crossing

A

a vine variety created by cross-polinating two different varieties within the same species

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13
Q

bush training

A

training the grape vine as an independent plant without a trellis system

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14
Q

head grafting

A

the practice of changing an established vineyard from one varietal to a more profitable varietal, without having to replant the entire vineyard

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15
Q

brix

A

used to measure the sugar percentage in grapes or juice

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16
Q

hectare

A

2.471 acres

17
Q

hectolitre

A

26.418 gallons or 100 litres

18
Q

Graben

A

Graben geological rift running from the Jura to the Mediterranean, causing climate change and soil variations

19
Q

Vitis riparia

A

North American species of grapevines

20
Q

Vitis labrusca

A

Eastern North American species of of grapevines- includes Concorde and Niagara

21
Q

cordon

A

an extension of a vine’s trunk

22
Q

diurnal swing

A

the change in temperature from hottest to coldest (day time to night time) in a given day or time period

23
Q

scion

A

section of plant material grafted onto a rootstock

24
Q

hybrid

A

a creation of a new variety by cross-pollinating two vines of different species