WSET Level 3 Exam Guide Questions and CORRECT Answers
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Course
WSET Level 3
Institution
WSET Level 3
WSET Level 3 Exam Guide Questions and
CORRECT Answers
4. / Name 2 most important species of vine - Correct Answer- Vitis vinifera - eurasian
American vines
4. / Disadvantage & Advantage of american vines ? - Correct Answer- Unattractive flavour of
the wines
But resistant to phylloxera - use...
WSET Level 3 Exam Guide Questions and
CORRECT Answers
4. / Name 2 most important species of vine - Correct Answer- Vitis vinifera - eurasian
American vines
4. / Disadvantage & Advantage of american vines ? - Correct Answer- Unattractive flavour of
the wines
But resistant to phylloxera - used for rootstocks
4. / What is phylloxera ? - Correct Answer- Vine pest (insect) that attacks vine's root
Native from north america
4. / When was phylloxera introduced in europe ? - Correct Answer- End of 19th century
4. / How phylloxera destroy the vines ? - Correct Answer- Infection enter through the feeding
wounds - vine is weakened and over a few year dies
4 / Places in the world without phylloxera ? - Correct Answer- Yes : chile, some parts of
argentina and south australia.
4. / How to fight phylloxera ? - Correct Answer- - Strict quarantine for non affected areas.
- plant american species or hybrid
- Grafting vitis vinifera onto rootstock of american vines
4. / What are the 2 grafting techniques existing ? - Correct Answer- Bench grafting - in
nurseries
Head grafting - in vineyards
4. / What is the advantage of head grafting ? - Correct Answer- Quickly change an establish
vineyards to a new grape variety taking advanyage of established root syst
,Grape at next vintage / instead of waiting 3 years
Considerably cheaper than replanting
4. / Four sections of vines ? - Correct Answer- Green parts
One year old wood
Permanent wood
Roots
4. / What are the leaves responsible for ? - Correct Answer- Photosynthesis
4. / What is photosynthesis process ? - Correct Answer- Plant use sunlight to convert carbon
dioxide and water into glucose and oxygen
4. / What are vine flowers representing ? - Correct Answer- Vine reproductive organs - both
male and female
4. / What is inflorescences ? - Correct Answer- A bunch of vine flowers that if pollinated will
become the bunch of grape.
4. / What is a buds ? - Correct Answer- An embryonic shoot for the following year forming at
the joint of the leave and the shoot
4. / What are the roots functions ? - Correct Answer- - absorb water
- absorb nutrients
- anchor vine
- store carbohydrates to survive winter
4. / Criteria for selecting a grape variety ? - Correct Answer- Taste
Quality of fruit
Budding time
Ripening time
Resistance to diseases
,4. / Can a variety be grown or propagated through seeds ? - Correct Answer- No
4. / Name 2 techniques to grow or propagate grape variety without loosing unique qualities -
Correct Answer- Cutting
Layering
4. / Out of the 2 techniques used to grow grape variety which one is most common today ? -
Correct Answer- Cutting - due to phylloxera risk
4. / Describe cutting principle - Correct Answer- A section of vine shoot that is planted and
grows as a new plant
Mainly in commercial nurseries
4. / What other term can be used instead of variety for a grape ? - Correct Answer- Cultivar
4 / describe layering principle - Correct Answer- Takes place in vineyard
A cane is bend down and a section of it is buried in the ground, cane tip points upwards,
buried section take roots, once roots established cane linking is cut
4. / What is clonal selection ? - Correct Answer- Selection of vine that show a particular set of
unique characteristics following mutations
4. / One famous example of clones that generated new grape variety ? - Correct Answer-
Pinot blanc and pinot gris are both mutations ( and therefore clones) of pinot noir
4. / How are new vine varieties created ? - Correct Answer- 1. Waiting for a random mutation
to occur
2. Cross fertilisation
4. / Describe principles of creating a new varieties by cross fertilisation - Correct Answer- -
pollen from male part of flowers transferred to female part of the flower of another vine =
fertilisation
- pollinated flower develops into a grape with seeds
, - seeds are planted and grows
4. / What are the 2 main approach in creating a new variety ? - Correct Answer- Cross
pollination :
Crossing - 2 parents from same species ( vitis vinifera mainly)
Hybrids - 2 parents from different species
4. / 2 famous examples of crossings ? - Correct Answer- Muller thurgau = riesling x
madeleine royale
Pinotage = pinot noir x cinsault
4. / Why are hybrids and american vine crossing important ? - Correct Answer- Used as
rootstock
4. / Is muller thurgau the result of hybrid, crossing or clonal selection ? - Correct Answer-
Crossing ( between 2 vitis vinifera)
4. / Is pinot blanc the result of hybrid, crossing or clonal selection ? - Correct Answer- Clonal
selection - mutation from pinot noir.
Same for pinot gris.
4. / How many buds are kept on a cane ? - Correct Answer- 20
4. / How many buds are kept on a spur ? - Correct Answer- 2 to 3
5. / What is a fruit set ? - Correct Answer- The vine flowers and small grapes form
5. / When does the grape start to ripen ? - Correct Answer- Late summer or early autumn
5. / What is the first sign of the ripening process ? What is the name of this process ? -
Correct Answer- Change of colour in the grape
Veraison
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