WSET DIPLOMA D1 - CHAPTER 2 QUESTIONS
What is the vine growth cycle (7)? - Answers :Dormancy
Budburst
Shoot and leaf growth
Flowering and fruit set
Grape development
Harvest
Leaf fall and dormancy
What are the vine's needs (5)? - Answers :Warmth
Sunlight
Water
Nutrients
Carbon Dioxide
What does the vine's ability to produce and ripen grapes mean (4)? - Answers :Yield per
vine
Health of vine and grapes
Levels and balance of grape components
Ripeness of aromas and flavors
Grape grower's goal - Answers :Produce the largest crop possible with the ripeness and
quality for the style of wine produced.
Vine's goal - Answers :Climb trees and reach the top of the woodland canopy
Grapes' goal - Answers :Attract birds and animals to eat them and disseminate seeds
Grape growers actions - Answers :Manipulate vines into producing grapes with desired
ripeness of sugar, acid, tannins, and aromas/flavors for style
What is respiration - Answers :the process of releasing energy from sugar (glucose)
What does a vine require for photosynthesis? - Answers :Water
Sunlight
Warmth for respiration
Carbon Dioxide
What temperature is too cold for vines to grow - Answers :10C or 50F
What is the start/end of dormancy? - Answers :From leaf fall to budburst
How does a vine support itself through dormancy? - Answers :Uses stores of
carbohydrates (mostly starch) accumulated in the roots, truck, and branches.
, At what temperature can vines be severely damaged? - Answers :-15C / 5F
At what temperature will most V. Vinifera be killed? - Answers :-25C / -13F
When is winter pruning performed? - Answers :During the dormant period
What is budburst/budbreak? - Answers :Buds swell and open an green shoots start to
emerge
Factors impacting the timing of budburst - Answers :Air temperature
Soil temperature
Grape variety
Human factors
What months is dormancy ? - Answers :N. Hemisphere = November - March
S. Hemisphere = May - September
What months is budburst? - Answers :N. Hemisphere = March - April
S. Hemisphere = September - October
What months is shoot and leaf growth? - Answers :N. Hemisphere = March - July
S. Hemisphere = September - January
What months is flowering & fruit growth? - Answers :N. Hemisphere = May - June
S. Hemisphere = November - December
What months is grape development? - Answers :N. Hemisphere = June - October
S. Hemisphere = December - April
What months is harvest? - Answers :N. Hemisphere = September - October
S. Hemisphere = March - April
What do buds come from in the current growing season? - Answers :Compound buds
from the previous growing season
What temperatures are required for buds to burst - Answers :Approximately 10C / 50F
What do compound buds do over the winter - Answers :Remain dormant
What regions have advantages for successful budburst? - Answers :Regions with
marked differences in seasonal temperatures (Continental climates)
Why do regions with seasonal temperature differences have an advantage for
budburst? - Answers :Rapidly increasing temperatures in the spring results in more
uniform budburst which means uniform ripeness.
What is the vine growth cycle (7)? - Answers :Dormancy
Budburst
Shoot and leaf growth
Flowering and fruit set
Grape development
Harvest
Leaf fall and dormancy
What are the vine's needs (5)? - Answers :Warmth
Sunlight
Water
Nutrients
Carbon Dioxide
What does the vine's ability to produce and ripen grapes mean (4)? - Answers :Yield per
vine
Health of vine and grapes
Levels and balance of grape components
Ripeness of aromas and flavors
Grape grower's goal - Answers :Produce the largest crop possible with the ripeness and
quality for the style of wine produced.
Vine's goal - Answers :Climb trees and reach the top of the woodland canopy
Grapes' goal - Answers :Attract birds and animals to eat them and disseminate seeds
Grape growers actions - Answers :Manipulate vines into producing grapes with desired
ripeness of sugar, acid, tannins, and aromas/flavors for style
What is respiration - Answers :the process of releasing energy from sugar (glucose)
What does a vine require for photosynthesis? - Answers :Water
Sunlight
Warmth for respiration
Carbon Dioxide
What temperature is too cold for vines to grow - Answers :10C or 50F
What is the start/end of dormancy? - Answers :From leaf fall to budburst
How does a vine support itself through dormancy? - Answers :Uses stores of
carbohydrates (mostly starch) accumulated in the roots, truck, and branches.
, At what temperature can vines be severely damaged? - Answers :-15C / 5F
At what temperature will most V. Vinifera be killed? - Answers :-25C / -13F
When is winter pruning performed? - Answers :During the dormant period
What is budburst/budbreak? - Answers :Buds swell and open an green shoots start to
emerge
Factors impacting the timing of budburst - Answers :Air temperature
Soil temperature
Grape variety
Human factors
What months is dormancy ? - Answers :N. Hemisphere = November - March
S. Hemisphere = May - September
What months is budburst? - Answers :N. Hemisphere = March - April
S. Hemisphere = September - October
What months is shoot and leaf growth? - Answers :N. Hemisphere = March - July
S. Hemisphere = September - January
What months is flowering & fruit growth? - Answers :N. Hemisphere = May - June
S. Hemisphere = November - December
What months is grape development? - Answers :N. Hemisphere = June - October
S. Hemisphere = December - April
What months is harvest? - Answers :N. Hemisphere = September - October
S. Hemisphere = March - April
What do buds come from in the current growing season? - Answers :Compound buds
from the previous growing season
What temperatures are required for buds to burst - Answers :Approximately 10C / 50F
What do compound buds do over the winter - Answers :Remain dormant
What regions have advantages for successful budburst? - Answers :Regions with
marked differences in seasonal temperatures (Continental climates)
Why do regions with seasonal temperature differences have an advantage for
budburst? - Answers :Rapidly increasing temperatures in the spring results in more
uniform budburst which means uniform ripeness.
