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Research Note

A Semi-Empirical Method to Estimate Canopy Leaf Area of Vineyards

Manuel Oliveira, Montilla Santos
Am J Enol Vitic.  1995  46: 389-391  ; DOI: 10.5344/ajev.1995.46.3.389
Manuel Oliveira
UTAD, 5000 Vila Real, Portugal
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Montilla Santos
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Abstract

An equation similar to Beer's law which describes the interception of radiation by plant canopies was used to calculate the total leaf area of a vineyard canopy. True leaf areas were measured by a leaf area integrating meter and its correlation with the calculated area was determined. Both measurements were highly correlated and their relationship was suitably described by either one of the following regression equations: Am = -8635.79 + 1.21 (Ac) and Am = 0.11147 • (Ac)1.2045, where Am is the area measured with the integrating meter and Ac is the calculated area. The procedure to calculate the total leaf area proved to be simple and reliable.

  • Vitis vinifera
  • canopy
  • leaf area
  • intercepted radiation
  • Received December 1994.
  • Copyright 1995 by the American Society for Enology and Viticulture

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A Semi-Empirical Method to Estimate Canopy Leaf Area of Vineyards
Manuel Oliveira, Montilla Santos
Am J Enol Vitic.  1995  46: 389-391  ; DOI: 10.5344/ajev.1995.46.3.389
Manuel Oliveira
UTAD, 5000 Vila Real, Portugal
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Montilla Santos
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A Semi-Empirical Method to Estimate Canopy Leaf Area of Vineyards
Manuel Oliveira, Montilla Santos
Am J Enol Vitic.  1995  46: 389-391  ; DOI: 10.5344/ajev.1995.46.3.389
Manuel Oliveira
UTAD, 5000 Vila Real, Portugal
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Montilla Santos
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
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