WVIT 300 Test Questions with Correct Answers Latest Update 2025 Graded A+
About what percentage of global grape production is wine? - Answers 70
The earliest evidence of intentional beverage fermentation is from where? - Answers China
What is the oldest winery in CA? - Answers Buena Vista in Sonoma County
Where we're some of the contributions of the ancient Egyptians to grape/wine production? - Answers
Trellising and pruning
Where were the first commercial vineyards in CA (planted in 1830s) - Answers Orange and San
Bernardino Counties
Where were the vinifera grapes first planted in North America? - Answers Mexico
Which ancient culture developed storage and aging of wine in wooden barrel? - Answers Romans
Which ancient culture established vineyards in southern Europe and made wine trade a major business?
- Answers Greeks
Greek god of wine - Answers Dionysus
Roman god of wine - Answers Bacchus
What grape species was so prolific in Newfoundland that Lief Erickson named it "Vineland" - Answers
Concord or Vitis Labrusca
A shoot that has lignified and hardened for winter - Answers Cane
Who were the French scientists trying to solve phylloxera outbreak in Europe? - Answers Planchon and
Lichtenstein with the help of Riley from Missouri
Morphology - Answers Study of organismal structures
Phenology - Answers Study of the developmental stages of the organism
Perennial - Answers Lives more than 2 years
shoot - Answers The green, photosynthesizing, primarily vegetative tissue of the current season's growth
Node - Answers The swollen part of the shoot with a lease, bud, tendrils in clusters are found
tendrils - Answers A modified flower cluster that twines and wraps around structures, and found
opposite of a leaf at a node
STAGE 1: BUDBREAK - Answers But break occurs in the spring after at least 200 chilling hours have taken
place when the mean daily temperature is above 50°
, Primordia - Answers Cells which give rise to specialized organs such as leaves of flowers
STAGE 2: BLOOM - Answers Grapes are self pollinating, the flowers are kind of boring with small petals.
This occurs about eight weeks after bud break.
STAGE 3: BERRY SET - Answers Successful fertilization result in a seeded berry
excessive shatter - Answers Flowers or young fruit fall off due to cold weather, shade, low nitrogen
Shot berries - Answers not pollinated successfully due to low concentration of zinc or boron
STAGE FOUR: BERRY GROWTH - Answers Has 3 phases: rapid growth, lag phase, and verasion
Phase 1 of stage 4: rapid growth - Answers Acids increase, sugars are low, berries are hard and green
Phase 2 of stage 4: lag phase - Answers Growth levels out, acid accumulation peaks, berries are still hard
and green
Phase 3 of stage 4: verasion - Answers Very soften, have a rapid increase in sugar, size accelerates, acid
decreases, phenolics increase
Two types of phenolics - Answers Anthocyanin and tannins
Anthocyanins - Answers reflect blue and purple
Tannins - Answers They are responsible for mouth fuel and are important in aging wine
Terpenes - Answers Give fruit, spice, floral aromas
Linalool - Answers Jasmine blossom aroma
Pyrazines - Answers Give wines vegetable characteristics
STAGE 5 MATURITY OR RIPENESS - Answers Maturity means seeds can be planted for next generation,
ripeness means they can be made into wine based on fruits desirability
STAGE 5 SENESCENCE - Answers The grapevine is starting to shut down, so the leaves turn yellow and
fall off
FINAL STAGE DORMANCY - Answers Suspension of growth during the unfavorable time of year, shoots
lignify cells, which increases sugars and other molecules to lower the freezing point.
No trellis - Answers All you need is a steak solo input, yields are limited, the canopy cannot spread, so
you may have too much shade or uneven light
Vertical shoot positioning - Answers The canopy is managed upward by using movable wires, this creates
a wall or hedge, used a lot on the central coast
About what percentage of global grape production is wine? - Answers 70
The earliest evidence of intentional beverage fermentation is from where? - Answers China
What is the oldest winery in CA? - Answers Buena Vista in Sonoma County
Where we're some of the contributions of the ancient Egyptians to grape/wine production? - Answers
Trellising and pruning
Where were the first commercial vineyards in CA (planted in 1830s) - Answers Orange and San
Bernardino Counties
Where were the vinifera grapes first planted in North America? - Answers Mexico
Which ancient culture developed storage and aging of wine in wooden barrel? - Answers Romans
Which ancient culture established vineyards in southern Europe and made wine trade a major business?
- Answers Greeks
Greek god of wine - Answers Dionysus
Roman god of wine - Answers Bacchus
What grape species was so prolific in Newfoundland that Lief Erickson named it "Vineland" - Answers
Concord or Vitis Labrusca
A shoot that has lignified and hardened for winter - Answers Cane
Who were the French scientists trying to solve phylloxera outbreak in Europe? - Answers Planchon and
Lichtenstein with the help of Riley from Missouri
Morphology - Answers Study of organismal structures
Phenology - Answers Study of the developmental stages of the organism
Perennial - Answers Lives more than 2 years
shoot - Answers The green, photosynthesizing, primarily vegetative tissue of the current season's growth
Node - Answers The swollen part of the shoot with a lease, bud, tendrils in clusters are found
tendrils - Answers A modified flower cluster that twines and wraps around structures, and found
opposite of a leaf at a node
STAGE 1: BUDBREAK - Answers But break occurs in the spring after at least 200 chilling hours have taken
place when the mean daily temperature is above 50°
, Primordia - Answers Cells which give rise to specialized organs such as leaves of flowers
STAGE 2: BLOOM - Answers Grapes are self pollinating, the flowers are kind of boring with small petals.
This occurs about eight weeks after bud break.
STAGE 3: BERRY SET - Answers Successful fertilization result in a seeded berry
excessive shatter - Answers Flowers or young fruit fall off due to cold weather, shade, low nitrogen
Shot berries - Answers not pollinated successfully due to low concentration of zinc or boron
STAGE FOUR: BERRY GROWTH - Answers Has 3 phases: rapid growth, lag phase, and verasion
Phase 1 of stage 4: rapid growth - Answers Acids increase, sugars are low, berries are hard and green
Phase 2 of stage 4: lag phase - Answers Growth levels out, acid accumulation peaks, berries are still hard
and green
Phase 3 of stage 4: verasion - Answers Very soften, have a rapid increase in sugar, size accelerates, acid
decreases, phenolics increase
Two types of phenolics - Answers Anthocyanin and tannins
Anthocyanins - Answers reflect blue and purple
Tannins - Answers They are responsible for mouth fuel and are important in aging wine
Terpenes - Answers Give fruit, spice, floral aromas
Linalool - Answers Jasmine blossom aroma
Pyrazines - Answers Give wines vegetable characteristics
STAGE 5 MATURITY OR RIPENESS - Answers Maturity means seeds can be planted for next generation,
ripeness means they can be made into wine based on fruits desirability
STAGE 5 SENESCENCE - Answers The grapevine is starting to shut down, so the leaves turn yellow and
fall off
FINAL STAGE DORMANCY - Answers Suspension of growth during the unfavorable time of year, shoots
lignify cells, which increases sugars and other molecules to lower the freezing point.
No trellis - Answers All you need is a steak solo input, yields are limited, the canopy cannot spread, so
you may have too much shade or uneven light
Vertical shoot positioning - Answers The canopy is managed upward by using movable wires, this creates
a wall or hedge, used a lot on the central coast
