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Research Article

Applications of Geospatial Technologies to Understand Terroir Effects in an Ontario Riesling Vineyard

Matthieu Marciniak, Andrew G. Reynolds, Ralph Brown, Marilyne Jollineau, Elena Kotsaki
Am J Enol Vitic.  2017  68: 169-187  ; DOI: 10.5344/ajev.2016.16083
Matthieu Marciniak
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
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Andrew G. Reynolds
2Professor, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
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  • For correspondence: areynolds@brocku.ca
Ralph Brown
3Professor, School of Engineering, University of Guelph, Guelph, Ontario, Canada N1G2W1
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Marilyne Jollineau
4Associate Professor, Department of Geography and Tourism Studies, Brock University, St. Catharines, Ontario, Canada L2S3A1
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Elena Kotsaki
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
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Abstract

The objective of this study was to determine whether yield components and grape berry composition variables were related to and dependent upon soil texture and composition, vine water status (leaf water potential, Ψ), and vine size and to assess whether spatial patterns of leaf Ψ, vine size, and other field variables were temporally stable. Data were collected in a 10-ha Riesling vineyard at Thirty Bench Winemakers in Beamsville, ON. The vineyard was delineated using global positioning systems and 519 vines in six sub-blocks were geo-referenced. Soil water content (SWC; all sentinel vines) and leaf Ψ data (a subset of 134 sentinel vines) were measured bi-weekly from 2006 to 2009. Soil texture and composition data were also collected for the 134-vine subset. Yield components (yield, clusters per vine) and berry samples were collected from each sentinel vine, with an additional berry sample for monoterpene determination from the subset. Vine size was determined by weight of cane prunings. Berry samples were analyzed for Brix, pH, and titratable acidity (TA) and the additional berry samples, for free and potential monoterpenes. All variables were mapped using geographic information systems, which permitted verification of temporal stability and correlative and spatial relationships. SWC and leaf Ψ were temporally stable throughout the vineyard despite extremely different weather conditions. There was increased Brix and pH and decreased TA (enhanced grape maturity) with decreases in SWC, leaf Ψ, and vine size. Where SWC was very high, decreased leaf Ψ, vine size, and fruit maturity were observed. Sub-blocks with highest sand and soil organic matter tended to have higher vine sizes and more berry monoterpenes.

  • berry composition
  • leaf water potential
  • soil water content
  • spatial variability
  • vine size
  • yield components
  • ©2017 by the American Society for Enology and Viticulture
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You have accessRestricted access
Applications of Geospatial Technologies to Understand Terroir Effects in an Ontario Riesling Vineyard
Matthieu Marciniak, Andrew G. Reynolds, Ralph Brown, Marilyne Jollineau, Elena Kotsaki
Am J Enol Vitic.  2017  68: 169-187  ; DOI: 10.5344/ajev.2016.16083
Matthieu Marciniak
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Andrew G. Reynolds
2Professor, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: areynolds@brocku.ca
Ralph Brown
3Professor, School of Engineering, University of Guelph, Guelph, Ontario, Canada N1G2W1
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Marilyne Jollineau
4Associate Professor, Department of Geography and Tourism Studies, Brock University, St. Catharines, Ontario, Canada L2S3A1
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Elena Kotsaki
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
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Applications of Geospatial Technologies to Understand Terroir Effects in an Ontario Riesling Vineyard
Matthieu Marciniak, Andrew G. Reynolds, Ralph Brown, Marilyne Jollineau, Elena Kotsaki
Am J Enol Vitic.  2017  68: 169-187  ; DOI: 10.5344/ajev.2016.16083
Matthieu Marciniak
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Andrew G. Reynolds
2Professor, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: areynolds@brocku.ca
Ralph Brown
3Professor, School of Engineering, University of Guelph, Guelph, Ontario, Canada N1G2W1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Marilyne Jollineau
4Associate Professor, Department of Geography and Tourism Studies, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Elena Kotsaki
1Graduate Research Assistant, Cool Climate Oenology and Viticulture Institute, Brock University, St. Catharines, Ontario, Canada L2S3A1
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
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