WSET DIPLOMA D1 2026 COMPREHENSIVE
QUESTION SET WITH RATIONALES AND WINE
BUSINESS STRATEGY REVIEW
◉ Rootstocks resistant to root-knot nematodes.
Answer: Ramsey and Dog Ridge (both vitis champini)
◉ Rootstocks resistant to draught.
Answer: 110 R(ichter), 140 R(uggeri)
hybrids of v. rupestris and v. berlandieri
they root deeply and quickly
◉ Rootstocks tolerant to waterlogged soils (high rainfall/soils
retaining water).
Answer: v. riparia (Riparia Gloire)
◉ Rootstocks tolerant to salinity in soils.
Answer: 1103 Paulsen
◉ Rootstocks tolerant to acidic soils.
Answer: 99 Richter
,110 Richter
hybrids of v. rupetris and v. berlandieri
◉ Main grape varieties.
Answer: vitis vinifera (native to Eurasia)
Vitis Riparia
v. Berlandieri
v. rupestris
above mainly used for rootstocks
◉ Anatomy of the vine: main elements.
Answer: roots
permanent wood (trunk)
one year old wood
main shoots
◉ Structure of the shoots.
Answer: Main shoots
the stem
nodes
canes - lignified green shoots
buds
,petiole (leaf stalk)
◉ kinds of buds.
Answer: Compound buds (latent buds) - break open in the following
season
Prompt buds - form and break in the same growing season, produce
lateral shoots
◉ canopy elements.
Answer: lateral shoots
tendrils
leaves
inflorences
bunches
grapes (pulp, skin seeds)
◉ Vine propagation.
Answer: 1. Cutting - allows usage of rootstocks, can be treated for
disease
2. Layering - burying a cane and cutting it off once it establishes
root; cannot be grafted
◉ Why use different clones?.
, Answer: yields
berry size
resistance to disease
skin thickness
◉ Mass selection (Selection Massale).
Answer: growers cultivate their own cuttings
expensive and labor intensive, takes a long time
◉ What is a cross?.
Answer: when parents of the variety are of the same species (Pinot
Noir+Cinsault=Pinotage)
◉ What is a hybrid?.
Answer: When parents are of different species (Ugni
Blanc+Seibel=Vidal Blanc)
◉ Vine growth cycle.
Answer: Dormancy (jan-march/may-sept)
Budburst (march-april/sept-oct)
Shoot and leaf growth (march-julysept-jan)
Flowering and fruit set (may-june/nov-dec)
QUESTION SET WITH RATIONALES AND WINE
BUSINESS STRATEGY REVIEW
◉ Rootstocks resistant to root-knot nematodes.
Answer: Ramsey and Dog Ridge (both vitis champini)
◉ Rootstocks resistant to draught.
Answer: 110 R(ichter), 140 R(uggeri)
hybrids of v. rupestris and v. berlandieri
they root deeply and quickly
◉ Rootstocks tolerant to waterlogged soils (high rainfall/soils
retaining water).
Answer: v. riparia (Riparia Gloire)
◉ Rootstocks tolerant to salinity in soils.
Answer: 1103 Paulsen
◉ Rootstocks tolerant to acidic soils.
Answer: 99 Richter
,110 Richter
hybrids of v. rupetris and v. berlandieri
◉ Main grape varieties.
Answer: vitis vinifera (native to Eurasia)
Vitis Riparia
v. Berlandieri
v. rupestris
above mainly used for rootstocks
◉ Anatomy of the vine: main elements.
Answer: roots
permanent wood (trunk)
one year old wood
main shoots
◉ Structure of the shoots.
Answer: Main shoots
the stem
nodes
canes - lignified green shoots
buds
,petiole (leaf stalk)
◉ kinds of buds.
Answer: Compound buds (latent buds) - break open in the following
season
Prompt buds - form and break in the same growing season, produce
lateral shoots
◉ canopy elements.
Answer: lateral shoots
tendrils
leaves
inflorences
bunches
grapes (pulp, skin seeds)
◉ Vine propagation.
Answer: 1. Cutting - allows usage of rootstocks, can be treated for
disease
2. Layering - burying a cane and cutting it off once it establishes
root; cannot be grafted
◉ Why use different clones?.
, Answer: yields
berry size
resistance to disease
skin thickness
◉ Mass selection (Selection Massale).
Answer: growers cultivate their own cuttings
expensive and labor intensive, takes a long time
◉ What is a cross?.
Answer: when parents of the variety are of the same species (Pinot
Noir+Cinsault=Pinotage)
◉ What is a hybrid?.
Answer: When parents are of different species (Ugni
Blanc+Seibel=Vidal Blanc)
◉ Vine growth cycle.
Answer: Dormancy (jan-march/may-sept)
Budburst (march-april/sept-oct)
Shoot and leaf growth (march-julysept-jan)
Flowering and fruit set (may-june/nov-dec)
