The Vine Flashcards
What is the purpose of canopy management?
- Improving vineyard yields
- Improve wine quality
- Control diseases
What is the difference between a high training system, and low training system?
High training systems = more fruit
Low training systems = less fruit
When is cane pruning used?
It is used for varieties that have low natural fruitfulness.
When in spur pruning used?
It is used for varieties that show high fruitfulness.
What is the purpose of pruning?
- Controlling the size and structure of the vine.
- Regulating crop size
- Maximizing the yield potential while maintaining the health of the plant.
What are vine training systems used for?
They are used for canopy management; finding the balance in enough foliage to facilitate photosynthesis.
How are vine yields measured?
By weight of the grapes, weight of the must, and volume of wine produced.
What does vine cultivation impact?
Outcome of the fruit and organoleptic (sensory) characteristics.
What determines vineyard yield?
- grape family
- vine age
- vine management practices
- region
- climate
- weather for the past 2 years
- other factors such as pests and disease
What are characteristics of older vines?
- lower yields (start to decline after 25-30 years)
- deeper roots
- more concentrated wines
What is the impact of pruning?
Winemaker is able to affect the number of grape berry bunches per shoot and per vine.
Name common vine training systems.
- Goblet
* Guyot
Why would a winemaker perform green harvest/crop thinning?
- better sugar levels
- improved wine quality
- encourages fruit ripening
What is selection massale?
Selecting the superior (better performing) plants of the vineyard and replanting in similar soil and terroir.
What is effect of increased vine density?
Improved wine quality.
