WSET Diploma D1 Exam with accurate detailed answers || || || || || || ||
Most important N American grape species
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Vitis labrusca, Vitis riparia, Vitis berlandieri and Vitis rupestris
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Four main sections of a grape vine
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the main shoots, one-year-old wood, permanent wood and the roots
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What comprises the canopy of a vine?
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The main shoots and all of their major structures - stem, buds, leaves, lateral shoots, tendrils
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and inflorescences/grape bunches
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What do the main shoots grow from, and when?
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The main shoots on the vine grow in spring from buds retained from the previous year
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Where are carbohydrates stored in a vine?
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Stems, trunks, roots || ||
Define lignify ||
,Green shoots become woody and rigid, they are then called canes
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Where do buds form? || || ||
between the leaf stalk (petiole) and the stem || || || || || || ||
Define the two types of buds || || || || ||
- Compound buds (form in one growing season and break open the following growing
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season, producing main shoots; typically a primary, secondary, and maybe tertiary)
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- Prompt buds (form and break open same season, form lateral shoots)
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What is the main function of lateral shoots? When are they desirable/undesirable?
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- to allow the plant to carry on growing if the tip of the main shoot has been damaged or
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eaten
- can provide an additional source of leaves for photosynthesis (useful if the laterals are near
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the ends of the main shoots)
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- Growth of laterals nearer the base of the main shoot can be undesirable as they impede air
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flow and can shade the fruit too much
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What is second crop? || || ||
Lateral shoots often produce inflorescences, which can be known as a 'second crop'
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,What is green harvesting?
|| || ||
Removal of second crop during summer || || || || ||
Define one-year-old wood || ||
the main shoots from the last growing season that were kept at pruning, supports
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compound buds; cane or spur || || || ||
Define permanent wood || ||
woody parts of the vine that are older than one year, including the trunk
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where are most roots found?
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top 50cm of soil
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what distinguishes PN clone 115?
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low Y, small grapes, good for high Q red wines
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what distinguishes PN clone 521?
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, high Y, bigger grapes, good for sparkling wine production
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When is leaf fall and dormancy?
|| || || || ||
Nov-March
When is budburst?
|| ||
March-April
When is shoot and leaf growth?
|| || || || ||
March-July
When is flowering and fruit set?
|| || || || ||
May-June
When is grape development?
|| || ||
June-Oct
When is harvest?
|| ||
Sept-Oct
Most important N American grape species
|| || || || ||
Vitis labrusca, Vitis riparia, Vitis berlandieri and Vitis rupestris
|| || || || || || || ||
Four main sections of a grape vine
|| || || || || ||
the main shoots, one-year-old wood, permanent wood and the roots
|| || || || || || || || ||
What comprises the canopy of a vine?
|| || || || || ||
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?
|| || || || || || || ||
The main shoots on the vine grow in spring from buds retained from the previous year
|| || || || || || || || || || || || || || ||
Where are carbohydrates stored in a vine?
|| || || || || ||
Stems, trunks, roots || ||
Define lignify ||
,Green shoots become woody and rigid, they are then called canes
|| || || || || || || || || ||
Where do buds form? || || ||
between the leaf stalk (petiole) and the stem || || || || || || ||
Define the two types of buds || || || || ||
- 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)
|| || || || || || || || || || ||
What is the main function of lateral shoots? When are they desirable/undesirable?
|| || || || || || || || || || ||
- 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)
|| || || || || ||
- 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
|| || || || || || ||
What is second crop? || || ||
Lateral shoots often produce inflorescences, which can be known as a 'second crop'
|| || || || || || || || || || || ||
,What is green harvesting?
|| || ||
Removal of second crop during summer || || || || ||
Define one-year-old wood || ||
the main shoots from the last growing season that were kept at pruning, supports
|| || || || || || || || || || || || || ||
compound buds; cane or spur || || || ||
Define permanent wood || ||
woody parts of the vine that are older than one year, including the trunk
|| || || || || || || || || || || || ||
where are most roots found?
|| || || ||
top 50cm of soil
|| || ||
what distinguishes PN clone 115?
|| || || ||
low Y, small grapes, good for high Q red wines
|| || || || || || || || ||
what distinguishes PN clone 521?
|| || || ||
, high Y, bigger grapes, good for sparkling wine production
|| || || || || || || ||
When is leaf fall and dormancy?
|| || || || ||
Nov-March
When is budburst?
|| ||
March-April
When is shoot and leaf growth?
|| || || || ||
March-July
When is flowering and fruit set?
|| || || || ||
May-June
When is grape development?
|| || ||
June-Oct
When is harvest?
|| ||
Sept-Oct
