Airborne imaging aids vineyard canopy evaluation | Zendy

Lee Johnson | Zendy; B. Lobitz | Zendy; Roy A. Armstrong | Zendy; Richard Baldy | Zendy; Ed Weber | Zendy; John De Benedictis | Zendy; D. Bosch | Zendy

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Airborne imaging aids vineyard canopy evaluation

Author(s) -

Lee Johnson,

B. Lobitz,

Roy A. Armstrong,

Richard Baldy,

Ed Weber,

John De Benedictis,

D. Bosch

Publication year - 1996

Publication title -

california agriculture

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.472

H-Index - 25

eISSN - 2160-8091

pISSN - 0008-0845

DOI - 10.3733/ca.v050n04p14

Subject(s) - vineyard , canopy , vine , pruning , phylloxera , environmental science , remote sensing , acre , bedroom , geography , agroforestry , agronomy , horticulture , biology , rootstock , archaeology

During the 1993 and 1994 growing seasons, airborne digital sensors were used to collect visible and near-infrared images of phylloxera-infested vineyards near Oakville in Napa County. Computerized processing enhanced the information content of the images with respect to leaf area of the canopy. Processed image values were strongly related to ground measurements of vine pruning weight and leaf area made within a 12-acre study site. The images were useful for mapping patterns of leaf area throughout the site and in surrounding vineyards, and for assessing year-to-year changes in canopy. The vineyard manager found the imagery valuable in planning for replacement of phylloxera-infested fields, managing for crop uniformity and segregating grapes of differing quality during harvest. This tool was particularly useful in evaluating and managing newly acquired property.

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