WSET DIPLOMA D1 - CHAPTER 1 QUESTIONS &
ANSWERS
Number of known grape varieties in the world - Answers :Over 1,000
Majority of global grape varieties belong to what species - Answers :Vitis Vinifera
Vitis Vinifera is indigenous to where - Answers :Eurasia
What grape varietal species is indigenous to Eurasia - Answers :Vitis Vinifera
Where are North American grape species used for production? - Answers :New York
state
What is the main function of N. American grape species globally? - Answers
:Rootstocks for grafting vitis vinifera onto
What are the most important N. American grape species (4)? - Answers :Vitis Labrusca
Vitis Riparia
Vitis Berlandieri
Vitis Rupestris
Anatomy of the Vine (4) - Answers :Main shoots
One-year-old wood
Permanent wood
Roots
What are the major structures of the main shoots - Answers :Stem
bud
leaves
lateral shoots
tendrils
Inflorescences / grape bunches
What does the canopy refer to? - Answers :Main shoots and their major structures
Where do main shoots grow from? - Answers :Buds retain from prior year
What does the stem do for its structures (3)? - Answers :Structure components attach to
Transports water and solutes to/from structures
Store of carbohydrates
What are in the solutes in stems? - Answers :Sugars and minerals
, What are nodes on a stem? - Answers :Swellings where structures are attached
What are internodes? - Answers :Length of stem between nodes
What does lignify mean? - Answers :Green shoots become woody, rigid, and turn brown
What is a cane? - Answers :A lignified shoot
What are the two types of buds? - Answers :Compound/latent
Prompt
What does a bud contain? - Answers :All the green parts; stem, buds, tendrils, leaves,
inforescences
What is another name for compound buds - Answers :Latent buds
When do compound buds form and break open? - Answers :Form in year 1 and break
open in year 2 (if retained)
What do compound buds produce? - Answers :Main shoots in the following growing
season
What types of buds are contained within a compound bud? - Answers :Primary bud
(main growing point)
Secondary buds
Tertiary buds
What is the purpose of secondary and tertiary buds - Answers :Only grow in the event
the primary bud is damaged (Spring frost)
When do prompt buds for and break open - Answers :Same growing season
Where do prompt buds form? - Answers :Main shoot
What do prompt buds produce - Answers :Lateral shoots
Where do lateral shoots grow from? - Answers :Current year buds (prompt buds)
How do the size of lateral shoots compare in size to main shoots? - Answers :Smaller
and thinner
What are the possible parts of a lateral shoot? - Answers :Stem
Leaves
Buds
Tendrils
Possibly inflorescences
ANSWERS
Number of known grape varieties in the world - Answers :Over 1,000
Majority of global grape varieties belong to what species - Answers :Vitis Vinifera
Vitis Vinifera is indigenous to where - Answers :Eurasia
What grape varietal species is indigenous to Eurasia - Answers :Vitis Vinifera
Where are North American grape species used for production? - Answers :New York
state
What is the main function of N. American grape species globally? - Answers
:Rootstocks for grafting vitis vinifera onto
What are the most important N. American grape species (4)? - Answers :Vitis Labrusca
Vitis Riparia
Vitis Berlandieri
Vitis Rupestris
Anatomy of the Vine (4) - Answers :Main shoots
One-year-old wood
Permanent wood
Roots
What are the major structures of the main shoots - Answers :Stem
bud
leaves
lateral shoots
tendrils
Inflorescences / grape bunches
What does the canopy refer to? - Answers :Main shoots and their major structures
Where do main shoots grow from? - Answers :Buds retain from prior year
What does the stem do for its structures (3)? - Answers :Structure components attach to
Transports water and solutes to/from structures
Store of carbohydrates
What are in the solutes in stems? - Answers :Sugars and minerals
, What are nodes on a stem? - Answers :Swellings where structures are attached
What are internodes? - Answers :Length of stem between nodes
What does lignify mean? - Answers :Green shoots become woody, rigid, and turn brown
What is a cane? - Answers :A lignified shoot
What are the two types of buds? - Answers :Compound/latent
Prompt
What does a bud contain? - Answers :All the green parts; stem, buds, tendrils, leaves,
inforescences
What is another name for compound buds - Answers :Latent buds
When do compound buds form and break open? - Answers :Form in year 1 and break
open in year 2 (if retained)
What do compound buds produce? - Answers :Main shoots in the following growing
season
What types of buds are contained within a compound bud? - Answers :Primary bud
(main growing point)
Secondary buds
Tertiary buds
What is the purpose of secondary and tertiary buds - Answers :Only grow in the event
the primary bud is damaged (Spring frost)
When do prompt buds for and break open - Answers :Same growing season
Where do prompt buds form? - Answers :Main shoot
What do prompt buds produce - Answers :Lateral shoots
Where do lateral shoots grow from? - Answers :Current year buds (prompt buds)
How do the size of lateral shoots compare in size to main shoots? - Answers :Smaller
and thinner
What are the possible parts of a lateral shoot? - Answers :Stem
Leaves
Buds
Tendrils
Possibly inflorescences
