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High uv radiation with long sun hours and a large diurnal.
What can be said about
the sunlight intensity
uv levels are 40% higher than similar latitudes in N.
and length in S. Island
Hemisphere due to a hole in the ozone layer and lack
New Zealand?
of air polution.
What does intense uv Enhances color and tannin
radiation do to development
of grapes?
How does daylight change Extended daylight hours which increase the ripening
during the period. Otherwise it would be too cool to ripen
growing season of NZ as you
properly.
move further South?
Diurnal shift in S. Island? Large which helps preserve acidity.
Availability of rain plus high uv levels, long sunshine
Why is careful canopy
hours and relatively high fertility soils requires it
management required in S.
otherwise you'd get excessive vegetation, creating too
Island?
much shade and reduction in yields and quality.
VSP with two canes.
Typical training method in
Some more complex 4 cane systems such as Scott
New Zealand?
Henry but high yields can be an issue for ripening in
the coolest years.
,Height of fruiting zone for SB Higher than in the old world due to the lack of need for
in NZ? How does it compare reflection of heat due to the high sunshine hours and it
to old world locations? makes hand harvesting easier.
Average around 70 hl/ha which is high despite low
planting densities (2-2.5 k vines/ha).
How are yields in NZ and
why?
Sufficient rain, plentiful sun, high nutrients
Is machine harvesting common Yes as many vines are planted on flat land.
in NZ?
Are fungal diseases an issue in Yes due to humidity caused by rain, especially in N Island.
NZ?
Many birds since very few natural predators.
Pests that are a concern in They eat grapes and damage bunches which make
NZ? How do they combat? them prone to bacterial and fungal infection.
They use netting and other bird scarers which adds cost.
Yes, despite high rain many areas have free draining alluvial soils.
Is irrigation needed in NZ?
Also there are winds that increase evapotranspiration
which increases the dryness. Some use trees as wind
breaks but this increases bird problems.
Negative impact of high uv Can sunburn the grapes so leaf positioning is critical to provide
radiation? shade
How do cyclones affect NZ? Can hit during flowering, fruitset or harvest and cause problems
with lower yields.
Independently audited certification program focused on
environmental, social and economic parameters.
Sustainable Winegrowing NZ?
Almost all producers are part of this.
How much of NZ wine is 10%
organic?
Is experimentation with Yes, since GI system has no regulations.
winemaking techniques
common in NZ?
, Low temp fermentation in SS to retain primary
flavors and aromas. Cultured yeast to increase
Typical winemaking for NZ
SB? aromatics.
MLF avoided to retain high acid and avoid buttery notes.
Oak fermentation, maturation and lees aging avoided.
Is chaptalization used for NZ Some do if a cool year of if harvested early.
SB?
Antioxidants in NZ SB? Ascorbic acid or SO2 may be used to preserve freshness after
bottling.
Some barrel ferment, lees stir, partial or full malo, oak
maturation.
Alternate styles of NZ SB? Some will do skin contact for up to 2 months to
add texture and aromas. This is increasing in
small volume, premium wines.
Mid range temps with cultured yeast in neutral vessels
How are red wines typically
made in NZ? made into a fresh, fruity high volume wine.
How are premium PN and Varying proportions of whole bunches during
Syrah most typically made fermentation to give green, herbal or floral notes.
in NZ?
Is cold soaking used in red Yes especially PN to extract color and flavor
wine production in NZ?
Matured in FR oak barrique especially for Merlot and
Typical aging of premium red
wines in NZ? Cab. Larger barrels utilized for PN.
90%
Traditionally due to TCA of the past and to avoid
How much of NZ wine is
premature oxidation and bottle variation.
Stelvin? Why?
Well accepted in NZ and UK.
2001
When was the New Zealand
Screwcap Initiative?
Many producers switched at this time.
Once heart of NZ wine, many producers have
What is Auckland most well