WSET DIPLOMA D1 FINAL SOLUTION SET
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ 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)
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
⩥ 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)
