Preliminary Report
General Overview
In general terms the 2007 growing season was characterized by warmer than
usual daytime temperatures (3.6° F [1.8° C] above normal) with colder than
usual nighttime lows (1.8° F [1° C] below normal). There was also more
relative humidity throughout the year. On February 16, the nighttime
temperatures throughout Mendoza plummeted to levels of 35 – 37° F (2 – 3°
C). This caused a hormonal shock in the plant, signaling the onset of its
autumnal cycle and significantly quickening the ripening process. This
phenomenon, coupled with increased temperatures throughout the year, meant
that the harvest was earlier than usual by between 14, and even up to 30,
days, depending on the area. The growing season also presented a higher than
normal amount of both general precipitation and violent hail storms. Due to
rain which began on March 24th, those grapes which had already been
harvested and sent to Bodega Catena Zapata for vinification, showed
excellent levels of quality and concentration. All white wine varietals, as
well as low yielding lots, had already been harvested by March 24.
Several lots in Bodega Catena Zapata’s highest altitude vineyards were left
to continue the ripening process and recover from the precipitation. The
very cool temperatures in these vineyards, coupled with previously
implemented water stress and leaf-pulling, allowed these lots to achieve
excellent maturity, with very good overall sanitary conditions and harvest
taking place very late in the year.
Angelica Vineyard, Lunlunta district, Maipu region, 2,840’ (860 m) elevation
The climatic conditions mentioned above meant that the Malbec from this 70
year old vineyard was harvested in the first two weeks of March, about 2
weeks earlier than normal. Lower general yields and this earlier harvest
meant an exceptional quality for this vineyard, higher than in previous
years, with supple textures and excellent density.
La Piramide Vineyard, Agrelo district, Lujan de Cuyo region, 3,100’ (940m)
elevation
On February 9th a violent rain and hail storm hit the areas of Agrelo and
neighboring Perdriel. While a lot of Chardonnay was lightly damaged, it was
hail netting on the Lot III of 25 year old Cabernet Sauvignon that saved
fruit which usually goes into the Nicolas Catena Zapata blend.
Like Angelica, this vineyard was harvested about 2 weeks earlier than
normal. Additional precipitation fell on March 24, but fortunately all the
Malbec and the most important Cabernet Sauvignon grapes had already been
harvested. The accelerated harvest meant excellent quality in this vineyard,
again higher than in previous vintages.
There were some Cabernet Sauvignon lots which we left on the vine after the
March precipitation. These lots were eventually declassified and not used in
Bodega Catena Zapata wines due to a lack of concentration.
Domingo Vineyard, Villa Bastias district, Tupungato region, 3,700’ (1,130m)
elevation
Following the pattern of the rest of the province, the ripening process was
accelerated in this vineyard, with harvest about 10 days ahead of the
historic average. A bit of rain in late November and again in early February
actually refreshed the vines from the higher daytime temperatures. The
Chardonnay was harvested on February 24, showing bright citrus fruit and
excellent acidity. The Cabernet Sauvignon was harvested on March 24 with
intense, lifted aromatics and excellent tannin quality.
Altamira Vineyard, Altamira district, San Carlos region, 3,870’ (1,180m)
elevation
While daytime highs were above normal in this area, the nights were
exceptionally cold. Light precipitation in late November cooled the
temperatures down and the cold nights quickened the harvest. Early, low
yielding lots were harvested on March 12 with intense violet aromatics and
exceptionally concentrated dark fruit flavors. Some precipitation fell on
March 14, but the extremely well drained sandy soils of the vineyard allowed
for additional Malbec to be harvested in excellent sanitary conditions on
March 20. The first Cabernet lots, with ripe cassis flavors and well
structured tannins, were harvested on March 28, with additional lots brought
in on April 6.
Additional precipitation came on April 10th. A few lots of Cabernet
Sauvignon and Malbec were left on the vine to recover from this rain. The
very well drained, sandy soils; low temperatures in the vineyard; previous
leaf-pulling measures; and general water restriction meant that these lots
of recovered nicely from the moisture.
The harvest was taken up again on April 26th until May 2nd, with very
healthy sanitary results in the fruit. The Malbec of this second harvest
shows a more plum and strawberry marmalade based fruit profile, while the
last lots of Cabernet Sauvignon showed more red currant aromas and flavors
with a higher concentration of tannins.
Adrianna Vineyard, Gualtallary district, Tupungato region, 5,000’ (1,500m)
elevation
This vineyard, the highest in all of Mendoza, was also characterized by an
early than normal harvest. While late November precipitation refreshed the
vines from the higher temperatures, the rest of December, January and
February were very dry. The shock of nighttime low temperatures in February
again quickened the ripening cycle, with the Malbec harvest beginning on
March 16th, almost a month ahead of time. Additional Malbec was brought in
on March 20th and April 2. This fruit shows very high levels of flavor
concentration and excellent tannin quality. The Cabernet Sauvignon harvest
began on April 2, about 2 weeks early. Additional lots were harvested on
April 9.
As was the case in Altamira, there were a few remaining lots of Cabernet
Sauvignon and Malbec which were left in the vineyard to recover from the
precipitation of early April. With similar vineyard characteristics of
sandy, well-drained soils and extremely low temperatures, and with the
vineyard management techniques of leaf-pulling and water restriction,
allowed the remaining Malbec and Cabernet Sauvignon fruit to continue
ripening.
The harvest was taken up again on April 27th and lasted until May 4th. The
last Cabernet Sauvignon grapes, harvested on April 30th showed a very ripe
style of dark cassis fruit. The Malbec, harvested on May 4th, presented the
same dark fruit profile typical of this vineyard, but with a higher level of
polyphenolic concentration.
2007 HARVEST: LOWERING YIELDS
& HARVEST DATES
As part of Bodega Catena Zapata’s ongoing Research & Development program,
extensive experimentation was conducted in 2007 on the relationship between
lower yields, canopy surface area and ripening cycle length. Please find
below some preliminary results from this year’s research.
It is an almost universally held viticultural truth that lower yields lead
to higher levels of both aromatic and flavor concentration. However, what is
commonly overlooked is their effect on the overall ripening process. Indeed,
if not managed correctly, lower yields may not necessarily lead to improved
fruit quality.
Over the last several years, Laura Catena and the Research & Development
team at Bodega Catena Zapata, have conducted extensive experimentation on
how to manage each vineyard lot in order to take advantage of everything
lower yields have to offer.
One of the first findings was that if canopy surface area is held constant,
lower yields will significantly accelerate the maturation process. The
canopy (overall leaf number) can perhaps best be thought of as the engine of
the vine, producing nutrients through photosynthesis which are sent to the
grapes for ripening. If the number of grape recipients (overall yield) is
lowered, each grape will receive more nutrients, thereby quickening the
maturation process.
An accelerated ripening cycle, in turn, means a shorter window for the
accumulation of the important polyphenolic components of color, aroma, and
flavor – potentially offsetting the desired increases in concentration from
lower yields. Experiments were specifically designed to discover when and
how the process of polyphenolic accumulation is initiated.
These tests focused on the behavior of the vine hormone ethylene, widely
recognized to be the trigger for fruit ripening and the production of
polyphenols. It was discovered that careful irrigation management designed
to induce slight amounts of water stress before flowering could actually
initiate ethylene development and polyphenolic accumulation at an earlier
stage in the growth cycle. This allowed for the same window of polyphenolic
development despite lower yields.
Implemented throughout the Catena family’s best vineyard lots, the
combination of light water stress prior to flowering, together with
drastically lower yields, resulted in notably earlier harvests than in
previous years. Initial results show significant increases in overall
polyphenolic concentration levels:
| Vineyard | Varietal | Average Harvest Date | Average Yield | 2007 Harvest Date | 2007 Yield |
| Angelica | Malbec | March 25–31 | 3.5 tons/acre | March 10-12 | 1.5 tons/acre |
| La Piramide | Malbec | April 1-5 | March 12-15 | 2 tons/acre | |
| Cabernet Sauvignon | April 8-15 | 3.5 tons/acre | March 24 | 2 tons/acre | |
| Altamira | Malbec | April 12-19 | 3.5 tons/acre | March 12 & 20 | 2 tons/acre |
| Cabernet Sauvignon | April 17 - 24 | 3.5 tons/acre | March 28 & April 6 | 2.5 tons/acre | |
| Adrianna | Malbec | April 15 - 22 | 3.5 tons/acre | March 16, 24 & April 2 | 1.5 tons/acre |
| Cabernet Sauvignon | April 19 - 26 | 3.5 tons/acre | April 2 & 9 | 1.5 tons/acre |