32. New Zealand Flashcards
What is New Zealand’s latitude range and to what city in the northern hemisphere does Marlborough correspond?
1) 36-46 degrees south
2) Rome
New Zealand’s climate is predominantly what except for which region?
1) Maritime
2) Central Otago - sheltered on all sides by mountains with a semi-continental climate
How does the North Island’s temperatures differ to the South’s?
More moderate.
Most of New Zealand’s vineyards are found on which side of the island except for which two?
1) East
2) Nelson & Auckland
What protects the south island’s vineyards from wind and rain off the Tasman with the exception of Nelson?
The Southern Alps
Why is it thought that New Zealand has a higher UV level than places of a similar latitude in the northern hemisphere? (2)
1) A hole in the ozone layer
2) Low levels of air pollution
What can high UV levels contribute to New Zealand’s wines?
Enhance the development of colour and tannin
What makes grape growing possible in areas of the south island it would otherwise be too cool for?
Extended daylight hours increase viable ripening period
Why is canopy management particularly important in many of New Zealand’s wine regions? For these same reasons yields are also high despite low density planting (3)
1) High levels of UV
2) 2,000+ sunshine hours
3) Relatively fertile soils
For what two reasons do New Zealand’s grape growers tend to train vines higher than those of a similar latitude in the northern hemisphere?
1) High sunlight hours mean vines do not need reflected solar energy
2) Higher fruiting zones makes hand harvesting easier
What are four viticultural hazards in NZ and why?
1) Fungal disease due to high rainfall and humidity
2) Birds due to very few predators
3) Sunburn due to high UV
4) Cyclonic winds disrupting flowering/fruit set
Why is irrigation practiced in some areas despite high rainfall? (2)
1) Due to free-draining alluvial soils
2) High winds that increase evapotranspiration
What two costs are associated with protecting against birds?
1) Bird scarers
2) Netting
What variety accounts for 62% of New Zealand’s plantings?
Sauvignon Blanc
Why is experimentation with different winemaking techniques common in New Zealand
Due to no GI-specific regulations
What might be added at bottling to ensure freshness? (2)
1) Ascorbic acid (an antioxidant)
2) SO2
Describe the common winemaking process for NZ Sauvignon Blanc in four steps
1) Low temperatures
2) Neutral vessel to retain primary fruit
3) Cultured yeasts to increase aromatics
4) MLC, maturation and lees contact are avoided
For which variety is cold maceration commonplace and why?
Pinot Noir to extract colour and aroma
What are the four main regions of the North Island?
1) Greater Auckland
2) Gisborne
3) Hawke’s Bay
4) Wairarapa
What are the five regions of the South Island?
1) Nelson
2) Marlborough
3) Canterbury
4) Central Otago
5) Waitaki
What are the three sub-regions of Greater Auckland?
1) Waiheke Island
2) West Auckland
3) Matakana
What are the two main varieties of Waiheke Island?
1) Cabernet Sauvignon
2) Syrah
Why can mid- to late-ripening varieties ripen fully on Waiheke?
The surrounding water leads to a relatively low diurnal range
What is the topography of Waiheke Island?
Gently undulating thus allowing growers to find sheltered positions for their vineyards
What two factors mean Waiheke Island’s wines are often premium priced?
1) Expansion and proximity to Auckland
2) Transport costs to the island
Two significant producers of Waiheke Island?
1) Stonyridge
2) Man O’ War
Why is land under vine likely to decrease in West Auckland?
The high cost of land and increasing urbanisation meaning many wineries based here already source fruit from other parts of New Zealand
Why is Gisborne one of the first regions to harvest each year?
The moderate maritime climate with high hours of sunshine and warming breezes from the north
Where are the majority of vineyards planted in Gisborne versus the more premium sites? (2)
1) Flat, fertile floodplain consisting of clay, loam and silt
2) On hillsides where the soils are poorer (premium)
What are the main two varieties planted in Gisborne?
1) Chardonnay
2) Pinot Gris
High precipitation and fertile soils in Gisborne mean grape growers need to do what? (2)
1) Choose devigorating rootstocks
2) Precise canopy management to prevent excessive canopy growth
Name a significant producer based in Gisborne
Milton Vineyards
Hawke’s Bay is similar in climate to what French wine region?
Bordeaux - moderate maritime with good sunshine and rainfall
What are the two key sub-regions of Hawke’s Bay?
1) Gimblett Gravels
2) Bridge Pa
Name two key producers in Hawke’s Bay
Craggy Range & Te Mata