Vineyard Management for Improved Fruit and Wine Quality

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Purdue University is an Equal Opportunity/Equal Access institution.
Theories on Heat Affects• Cali<strong>for</strong>nia Zones I-V based on GDDs base 50˚F (Amerine &Winkler, 1944)• Temps >86˚F day & >64˚F night are detrimental to fruit qualityOptimal temperature is 68-77˚F day, 59-68˚F night (Coombe,1987)• Mean temp of 64-70˚F during final month of ripening(Gladstones, 1992)• Daily heat load (>22˚C) during last 28 days (Happ, 2004)• <strong>Quality</strong> ripening days (daily heat accumulation base 50
Page 1: Vineyard Managementfor Improved Fru
Page 4 and 5: Matching Variety to Site• Cold ha
Page 6 and 7: Match Cold Hardiness to Climate•
Page 8 and 9: Match Ripening Date to Climate• H
Page 12 and 13: Match Variety to Ripening SeasonTem
Page 14 and 15: Purdue University is an Equal Oppor
Page 16 and 17: Iowa Ripening Season TemperaturesLo
Page 18 and 19: Rainfall During RipeningRainfall be
Page 20 and 21: Appropriate Harvest Decisions• Su
Page 22 and 23: Characteristics of Balanced Vines
Page 24 and 25: How much to prune? ~90%of 1-year-ol
Page 26 and 27: Balanced Pruning• Vine capacity o
Page 28 and 29: Example of Balanced Pruning• Prun
Page 30 and 31: One shoot per budPurdue University
Page 32 and 33: Non-count shootsPurdue University i
Page 34 and 35: Problem with balanced pruning formu
Page 36 and 37: Variety Performance over 12 yearsSo
Page 38 and 39: Variety Performance over 12 yearsSo
Page 40 and 41: Variety performance over 6 yrs at L
Page 42 and 43: Vine Balance Summary• Pruning and
Page 44 and 45: Training System Goals• Position a
Page 46 and 47: Matching the Training System to Gro
Page 48 and 49: High CordonTrainingPurdue Universit
Page 58 and 59: Concerns with Mid-Wire Cordon• Up
Page 60 and 61:
Purdue University is an Equal Oppor
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Training Summary• Choose training
Page 68 and 69:
Yield Components, Vine Size, Crop L
Page 70 and 71:
Fruit Composition5 year meansTraini
Page 72 and 73:
Sensory ResultsPanelists correctly
Page 74 and 75:
Scott Henry Canopy ComparisonsTrain
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Acknowledgements• Patty Skinkis -
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Vineyard Management for Improved Fruit and Wine Quality

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