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Raya-Sereno, MdAuthorPancorbo, JlAuthorAlonso-Ayuso, MAuthorGabriel, JlAuthorQuemada, MCorresponding Author

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April 11, 2024
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Assessing wheat genotype response under combined nitrogen and water stress scenarios coupling high-resolution optical and thermal sensors with radiative transfer models

Publicated to:European Journal Of Agronomy. 154 127102- - 2024-03-01 154(), DOI: 10.1016/j.eja.2024.127102

Authors: Raya-Sereno, MD; Camino, C; Pancorbo, JL; Alonso-Ayuso, M; Gabriel, JL; Beck, PSA; Quemada, M

Affiliations

CSIC, Inst Nacl Invest & Tecnol Agr & Alimentaria INIA - Author
European Commiss EC, Joint Res Ctr JRC - Author
Inst Tecnol Agr Castilla & Leon - Author
Univ Politecn Madrid, Dept Agr Prod, CEIGRAM - Author

Abstract

Remote sensing (RS) offers great possibilities to acquire data for early determination of crop performance, which is essential for water and nitrogen (N) management. The objective of this study was to assess the nutritional and water status of different wheat genotypes (Triticum aestivum L.) by means of vegetation indices (VIs) derived from ground-level hyperspectral measurements, plant traits retrieved by coupling a radiative transfer (RT) model with a 3-layer neural network, and thermal data. To this end, two field experiments were conducted in central Spain during 2018-2021, using two wheat genotypes (Cellule and Nogal) under three N and two irrigation doses. Pigment and polyphenolic compound measurements were carried out with a Dualex (R) device, canopy reflectance (400-900 nm) was measured with a handheld spectroradiometer, and thermal indicators were assessed using a thermal camera at different wheat growth stages. The nitrogen nutrition index (NNI) at flowering and the grain yield (GY) and grain N concentration (GNC) at harvest were determined. The spectral reflectance measurements were used to calculate VIs, and the PROSAIL-PRO radiative transfer model was used to retrieve chlorophyll (Chl) content and leaf area index (LAI). In addition, the water deficit index (WDI) and canopy-air temperature difference (Tc-Ta) were used to assess the water status of wheat. Our results show that predicted Chl and VIs built with red-edge bands obtained the best agreement with NNI (R2 >= 0.60 at flowering in Cellule and R2 = 0.60 at medium milk in Nogal) and GNC (R2 >= 0.45 and 0.38 in Cellule and Nogal respectively). The GY was best assessed with VIs combining near infrared (NIR) / visible bands and NIR / red-edge bands (R2 >= 0.74 and RMSE <= 903 kg ha-1 at watery ripe in Cellule; R2 >= 0.56 and RMSE <= 791 kg ha-1 at the end of stem elongation in Nogal) than by the predicted plant traits. The best differentiation between genotype performance was achieved by predicted Chl and LAI retrieved through PROSAIL-PRO and the canopy Chl content index, showing that the Cellule genotype had a stronger response than Nogal to N application. Similarly, the WDI and Tc-Ta proved that the more drought-resistant genotype (Cellule) suffered lower water stress than Nogal. This study highlights that the combination of optical and thermal data improved the assessment of the agronomic parameters studied (R2 increased by 23 % and RMSE decreased by 8 %), suggesting its potential for conducting irrigation and N fertilization management.

Keywords

Agricultural modelingAirborneAssessment methodCanopy temperatureCrop modelingDurum-wheatGenotypeGrain-yieldHyperspectral sensorsLeaf chlorophyll contentMachine learningNitrogenNutrition indexPhenotypingPrecision agricultureProsail-proRadiative transferReflectanceScenario analysisSensorSpainUse efficiencyVegetation indexVegetation indexesVegetation indicesWater stressWheatWinter-wheat

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal European Journal Of Agronomy due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 12/129, thus managing to position itself as a Q1 (Primer Cuartil), in the category Agronomy. Notably, the journal is positioned above the 90th percentile.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-07-25:

  • WoS: 5
  • Scopus: 10

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-25:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 44 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
    • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/84068/

    As a result of the publication of the work in the institutional repository, statistical usage data has been obtained that reflects its impact. In terms of dissemination, we can state that, as of

    • Views: 78
    • Downloads: 10

    Leadership analysis of institutional authors

    This work has been carried out with international collaboration, specifically with researchers from: Belgium; Italy.

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (RAYA SERENO, M DOLORES) and Last Author (QUEMADA SAENZ-BADILLOS, MIGUEL).

    the author responsible for correspondence tasks has been QUEMADA SAENZ-BADILLOS, MIGUEL.