New Zealand Flashcards
Land under vine in New Zealand
38,000ha
Cool, maritime climate means what for NZ wine styles?
Refreshing, strongly varietal white wines, eg Sauvignon Blanc
NZ SB style
Unoaked, dry
Pronounced green fruit, tropical
High acid
First half of 20th century: most NZ wines made in what style
Fortified, labelled “Port” or “Sherry”
Established dairy industry meant what for NZ farmers turning to wine?
High levels of safety and clealiness were second nature -> hygiene, temperature control -> clean, consistent and reliable wines
How has NZ wine grown since 1981?
Huge growth!
1981: only 5,000ha, exports of 6,000hl
Now: 38,000ha, exports of 2.7million hl
Sauvignon Blanc accounts for what % of plantings in NZ?
Two-thirds
What separates NZ’s North and South Island?
Cook Strait
NZ is surrounded by what ocean?
South Pacific Ocean
What effect does that Pacific Ocean have on NZ?
Cools temperature
Maritime climate (except Central Otago, semi-continental)
How does climate vary accross NZ’s islands?
South Island is generally cool
Some parts of North Island (Auckland and Gisborne) have moderate climate -> lower latitudes
NZ’s vineyards mostly on what side of the islands?
East
Southern Alps protect South ISland from excessive rains and Orevailing wind from Tasman sea
Significant aspects of NZ’s climate
High UV radiation
Long hours of sunlight
Large dirunal range
Comment on UV radiation in NZ?
Up to 40% higher than equivalent in Northern Hemisphere
Hole in ozone layer and low levels of air pollution
Enhance colour and tannin
High UV radiation in NZ. So what?
Can enhance colour and tannin development in black grapes
NZ’s South Island has a big diurnal range. So what?
Helps preserve acidity in grapes
NZ has extended daylight hours at southerly latitude. So what?
Increase the viable ripening period
-> grape growing possible where otherwise it would be too cool
Why is canopy management important in NZ?
- more than enough rain
- high levels of UV
- long sunshine hours
- fertile soils
otherwise: excessive veg growth, too much shading, reduction in yield and quality
Vine training height in NZ
Generally higher than European cool climate
-> Don’t need to be close to ground (enough sunlight)
-> High fruit zone easier to hand-harvest
Account for high yields in NZ
Sufficient rain
Plentiful sun
High nutrient levels
Planting density in NZ
Generally low
2,000-2,500 v/ha
Average yield in NZ
High
70hl/ha
Lot of rain in NZ. So what?
Humidity -> fungal disease
(particularly warmer North Island)
Why do birds thrive in NZ? So what?
Very few natural predators
Cause damage in vineyards: eat grapes, damage bunches -> bacteria, fungal
Use netting and bird scarers