Precision Agriculture

, Volume 20, Issue 2, pp 335–347 | Cite as

Hyperspectral remote sensing of grapevine drought stress

  • M. ZovkoEmail author
  • U. Žibrat
  • M. Knapič
  • M. Bubalo Kovačić
  • D. Romić


In karst landscapes stony soils have little water holding capacity; the rational use of water for irrigation therefore plays an important management role. Because the water holding capacity is not homogenous, precision agriculture approaches would enable better management decisions. This research was carried out in an experimental vineyard grown in an artificially transformed karst terrain in Dalmatia, Croatia. The experimental design included four water treatments in three replicates: (1) fully irrigated, based on 100% crop evapotranspiration (ETc) application (N100); (2 and (3) deficit irrigation, based on 75% and 50% ETc applications (N75 and N50, respectively); and (4) non-irrigated (N0). Hyperspectral images of grapevines were taken in the summer of 2016 using two spectral-radiance (W sr−1 m−2) calibrated cameras, covering wavelengths from 409 to 988 nm and 950 to 2509 nm. The four treatments were grouped into a new set consisting of: (1) drought (N0); and (2) irrigated (the remaining three treatments: N100, N75, and N50). The images were analyzed using Partial Least Squares-Discriminant Analysis (PLS-DA), and treatments were classified using PLS-Single Vector Machines (PLS-SVM). PLS-SVM demonstrated the capability to determine levels of grapevine drought or irrigated treatments with an accuracy of more than 97%. PLS-DA identified relevant wavelengths, which were linked to O–H, C–H, and N–H stretches in water, carbohydrates and proteins. The study presents the applicability of hyperspectral imaging for drought stress assessment in grapevines, even though temporal variability needs to be taken into account for early detection.


Vineyard Irrigation Water stress Hyperspectral imagery Soil Precision agriculture 



This research has been partially supported in part by Croatian Science Foundation under the Project IP-2016-06-8379, SENSIRRIKA - Advanced sensor systems for precision irrigation in karst landscape, and partially by the Croatian Waters, and by the Slovenian Research Agency (ARRS), Grant P4-0072.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Faculty of AgricultureUniversity of ZagrebZagrebCroatia
  2. 2.Agricultural Institute of SloveniaLjubljanaSlovenia

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