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vineyard report 2005 - 2006

Growing Season Oct '05 - April '06

Spring really 'hit the ground running' as the winter was the warmest on record. September, the bud burst month, brought the woolly buds out 10 days ahead of average. The October and November temperatures were also above average, which kept the season on track for an early flowering (Late November). Excellent conditions for this critical growth stage delivered a bountiful fruit set.

January and February's mid season temperatures were slightly below the medium range. This is the time when berry size increases and veraison occurs. At this stage accumulating acids were not being depleted by natural plant functions - enzyme action and respiration, both requiring heat - and we were able to retain that vibrant 'jump out the glass' character that we have all come to expect from Marlborough Sauvignon Blanc.

The difference of temperature between the '05 and '06 vintage was dramatic - '05 being one of the coolest on record and '06 being one of the warmest. (See table below) This contrast will be reflected in the wine styles - especially our Sauvignon BLanc, where flavours are very sensitive to seasonal climatic differences. Our '05 Sauvignon Blanc is more herbal with a good spine of acidity while our '06 leans towards the tropical end of the spectrum with slightly lower acidity.

Harvest dates for the 2006 vintage were up to 3 weeks early, catching out those installing last minute tanks and winery equipment.

The table below depicts the significant increase to Growing Degree temperatures for the 2006 vintage.

Cheers,

The Mike's

 



 Mean Temps 

05/06 deviation

 LTA Mean GDD05/06 LTAGDD
July9.7°+2.57.2°24.55.9
August10.2°+1.88.4°26.313.3
September11.9°+1.310.6°66.343.1
October12.7°Equal12.7°85.896.1
November15.1°+0.514.6°153.2140.2
December18.6°+1.916.7°265.2204.2
January18.2°+0.317.9°253.2242.8
February17.7°-0.117.8°216.6220.7
March15.0°-1.216.2°153.2192.4
 LTA = Long Term AverageGDD = Growing degree days

 



Vineyard Report 2005 - 2006

© Isabel Estate Vineyard 2006 – managed by ziegler design