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Remote sensing devices as key methods in the advanced turfgrass phenotyping under different water regimes

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  • Yousfi, Salima
  • Marín, José
  • Parra, Lorena
  • Lloret, Jaime
  • Mauri, Pedro V.

Abstract

Turfgrass phenotyping is a potential tool in different grass program breeding. The traditional methods for turfgrass drought phenotyping in field are time-consuming and labor-intensive. However, remote sensing techniques emerge as effective, rapid and easy approaches to optimize turfgrass selection under water stress. Remote sensing approaches are considerate as important strategies to select species of turfgrass tolerable to drought allowing green space sustainability and environment protection in regions with water limitation. Here we evaluated differences between six mixtures of C3-C4 turfgrass grown under two water regimes (limited and high irrigation). The performance of turf species was achieved using the green area (GA) vegetation index calculated from RGB (red green, blue) images obtained by ground camera and drone imagery, the normalized difference vegetation index (NDVI), the plant canopy temperature (CT) and soil moisture content (SM). Both vegetation (GA and NDVI) and water status (CT and SM) indices presented a significant difference in turfgrass growth under the two water regimes. Differences among turfgrass species were detected under limited and high irrigation using the vegetation indices. Both NDVI and GA allowed clear separation between drought-tolerant and susceptible turfgrass, as well as the identification of the mixtures with a rapid green regeneration after a period of limited irrigation. Moreover, the canopy temperature also discriminated between turfgrass species but only under limited irrigation, while soil moisture values did not differentiate between species. Furthermore, the regression and conceptual model using remote sensing parameters revealed the most adequate criteria to detect turfgrass variability under each growing condition. This study also highlights the usefulness of green area vegetation index derived from drone imagery. GA obtained by drone images in this study explained turfgrass variability better than that derived from ground RGB images or the NDVI.

Suggested Citation

  • Yousfi, Salima & Marín, José & Parra, Lorena & Lloret, Jaime & Mauri, Pedro V., 2022. "Remote sensing devices as key methods in the advanced turfgrass phenotyping under different water regimes," Agricultural Water Management, Elsevier, vol. 266(C).
    • Handle: RePEc:eee:agiwat:v:266:y:2022:i:c:s0378377422001287
    DOI: 10.1016/j.agwat.2022.107581
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    References listed on IDEAS

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    1. Yousfi, Salima & Kellas, Nassim & Saidi, Lila & Benlakehal, Zahra & Chaou, Lydia & Siad, Djamila & Herda, Farid & Karrou, Mohamed & Vergara, Omar & Gracia, Adrian & Araus, José Luis & Serret, Maria Do, 2016. "Comparative performance of remote sensing methods in assessing wheat performance under Mediterranean conditions," Agricultural Water Management, Elsevier, vol. 164(P1), pages 137-147.
    2. José Marín & Salima Yousfi & Pedro V. Mauri & Lorena Parra & Jaime Lloret & Alberto Masaguer, 2020. "RGB Vegetation Indices, NDVI, and Biomass as Indicators to Evaluate C 3 and C 4 Turfgrass under Different Water Conditions," Sustainability, MDPI, vol. 12(6), pages 1-16, March.
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    Cited by:

    1. J. Dhakshayani & B. Surendiran, 2023. "M2F-Net: A Deep Learning-Based Multimodal Classification with High-Throughput Phenotyping for Identification of Overabundance of Fertilizers," Agriculture, MDPI, vol. 13(6), pages 1-19, June.

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