Viti Terms

Question 1

graft / grafting

Answer 1

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

Question 2

ampelography

Answer 2

the study of grape vines

Question 3

Refractometer

Answer 3

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

Question 4

bench graft

Answer 4

grafting done in a nursery

Question 5

Vitis vinifera

Answer 5

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

Question 6

aspersion

Answer 6

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

Question 7

translocation

Answer 7

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

Question 8

Vitis rotundifolia

Answer 8

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

Question 9

field graft

Answer 9

grafting done in the vineyard

Question 10

micro-climate

Answer 10

the climate within the canopy of the vine

Question 11

bleeding

Answer 11

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)

Question 12

crossing

Answer 12

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

Question 13

bush training

Answer 13

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

Question 14

head grafting

Answer 14

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

Question 15

brix

Answer 15

used to measure the sugar percentage in grapes or juice

Question 16

hectare

Answer 16

2.471 acres

Question 17

hectolitre

Answer 17

26.418 gallons or 100 litres

Question 18

Graben

Answer 18

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

Question 19

Vitis riparia

Answer 19

North American species of grapevines

Question 20

Vitis labrusca

Answer 20

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

Question 21

cordon

Answer 21

an extension of a vine’s trunk

Question 22

diurnal swing

Answer 22

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

Question 23

scion

Answer 23

section of plant material grafted onto a rootstock

Question 24

hybrid

Answer 24

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