On-the-go thermal imaging for water status assessment in commercial vineyards

  1. Gutiérrez, S. 1
  2. Diago, M. P. 1
  3. Fernández-Novales, J. 1
  4. Tardaguila, J. 1
  1. 1 Instituto de Ciencias de la Vid y del Vino (University of La Rioja, CSIC, Gobierno de La Rioja)
Revista:
Advances in Animal Biosciences

ISSN: 2040-4700,  2040-4719

Any de publicació: 2017

Volum: 8

Número: 2

Pàgines: 520-524

Tipus: Article

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DOI: 10.1017/S204047001700108X GOOGLE SCHOLAR lock_openAccés obert editor

Altres publicacions en: Advances in Animal Biosciences

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Resum

The goal of this work was the assessment of commercial vineyard water status using on-the-go thermal imaging. On-the-go thermal imaging acquisition was conducted with a thermal camera operating at 1.20 m distance from the canopy, mounted on a quad moving at 5 km/h. Canopy temperature, cross water stress index (CWSI) and stomatal conductance index (Ig) were strongly and significantly correlated to stem water potential (Ψstem) in east and west side of the canopy. For CWSI, the values of the coefficient of determination (R2) were 0.88*** and 0.73*** for east and west sides, respectively. As regards the index Ig, its relationships with Ψstem showed R2=0.89*** and R2=0.77*** for east and west sides, respectively. These results are promising and evidence the potential of on-the-go thermal imaging to become a new tool to evaluate the vineyard water status.

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