WSET Diploma D1 / WSET
Diploma D1 QUESTIONS AND
CORRECT DETAILED
ANSWERS WITH RATIONALES
(VERIFIED ANSWERS)
|ALREADY GRADED A+
Most important North American grape species - CORRECT
ANSWER-Vitis labrusca, Vitis riparia, Vitis berlandieri and
Vitis rupestris
Four main sections of a gr...
WSET Diploma D1 / WSET
Diploma D1 QUESTIONS AND
CORRECT DETAILED
ANSWERS WITH RATIONALES
(VERIFIED ANSWERS)
|ALREADY GRADED A+
,Most important North American grape species - CORRECT
ANSWER-Vitis labrusca, Vitis riparia, Vitis berlandieri and
Vitis rupestris
Four main sections of a grape vine - CORRECT ANSWER-the
main shoots, one-year-old wood, permanent wood and the
roots
What comprises the canopy of a vine? - CORRECT ANSWER-
The main shoots and all of their major structures - stem,
buds, leaves, lateral shoots, tendrils and
inflorescences/grape bunches
What do the main shoots grow from, and when? - CORRECT
ANSWER-The main shoots on the vine grow in spring from
buds retained from the previous year
Where are carbohydrates stored in a vine? - CORRECT
ANSWER-Stems, trunks, roots
Define lignify - CORRECT ANSWER-Green shoots become
woody and rigid, they are then called canes
,Where do buds form? - CORRECT ANSWER-between the leaf
stalk (petiole) and the stem
, Define the two types of buds - CORRECT ANSWER--
Compound buds (form in one growing season and break
open the following growing season, producing main shoots;
typically a primary, secondary, and maybe tertiary)- Prompt
buds (form and break open same season, form lateral
shoots)
- Prompt buds (form and break open same season, form
lateral shoots)
What is the main function of lateral shoots? When are they
desirable/undesirable? - CORRECT ANSWER-- to allow the
plant to carry on growing if the tip of the main shoot has
been damaged or eaten
- can provide an additional source of leaves for
photosynthesis (useful if the laterals are near the ends of the
main shoots)
What is second crop? - CORRECT ANSWER-Lateral shoots
often produce inflorescences, which can be known as a
'second crop'
- Growth of laterals nearer the base of the main shoot can be
undesirable as they impede air flow and can shade the fruit
too much
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