WSET DIPLOMA D1 EXAMS SET FULL
SOLUTION SOLVED QUESTIONS 2026
GRADED A+.
⫸ Rootstocks resistant to root-knot nematodes - Ramsey and Dog
Ridge (both vitis champini)
⫸ Rootstocks resistant to draught - 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) - v. riparia (Riparia Gloire)
⫸ Rootstocks tolerant to salinity in soils - 1103 Paulsen
⫸ Rootstocks tolerant to acidic soils - 99 Richter
110 Richter
hybrids of v. rupetris and v. berlandieri
⫸ Main grape varieties - vitis vinifera (native to Eurasia)
Vitis Riparia
v. Berlandieri
,v. rupestris
above mainly used for rootstocks
⫸ Anatomy of the vine: main elements - roots
permanent wood (trunk)
one year old wood
main shoots
⫸ Structure of the shoots - Main shoots
the stem
nodes
canes - lignified green shoots
buds
petiole (leaf stalk)
⫸ kinds of buds - 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 - lateral shoots
tendrils
leaves
inflorences
, bunches
grapes (pulp, skin seeds)
⫸ Vine propagation - 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? - yields
berry size
resistance to disease
skin thickness
⫸ Mass selection (Selection Massale) - growers cultivate their own
cuttings
expensive and labor intensive, takes a long time
⫸ What is a cross? - when parents of the variety are of the same
species (Pinot Noir+Cinsault=Pinotage)
⫸ What is a hybrid? - When parents are of different species (Ugni
Blanc+Seibel=Vidal Blanc)
⫸ Vine growth cycle - Dormancy (jan-march/may-sept)
Budburst (march-april/sept-oct)
SOLUTION SOLVED QUESTIONS 2026
GRADED A+.
⫸ Rootstocks resistant to root-knot nematodes - Ramsey and Dog
Ridge (both vitis champini)
⫸ Rootstocks resistant to draught - 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) - v. riparia (Riparia Gloire)
⫸ Rootstocks tolerant to salinity in soils - 1103 Paulsen
⫸ Rootstocks tolerant to acidic soils - 99 Richter
110 Richter
hybrids of v. rupetris and v. berlandieri
⫸ Main grape varieties - vitis vinifera (native to Eurasia)
Vitis Riparia
v. Berlandieri
,v. rupestris
above mainly used for rootstocks
⫸ Anatomy of the vine: main elements - roots
permanent wood (trunk)
one year old wood
main shoots
⫸ Structure of the shoots - Main shoots
the stem
nodes
canes - lignified green shoots
buds
petiole (leaf stalk)
⫸ kinds of buds - 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 - lateral shoots
tendrils
leaves
inflorences
, bunches
grapes (pulp, skin seeds)
⫸ Vine propagation - 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? - yields
berry size
resistance to disease
skin thickness
⫸ Mass selection (Selection Massale) - growers cultivate their own
cuttings
expensive and labor intensive, takes a long time
⫸ What is a cross? - when parents of the variety are of the same
species (Pinot Noir+Cinsault=Pinotage)
⫸ What is a hybrid? - When parents are of different species (Ugni
Blanc+Seibel=Vidal Blanc)
⫸ Vine growth cycle - Dormancy (jan-march/may-sept)
Budburst (march-april/sept-oct)
