Open Access iconOpen Access

ARTICLE

Retrieval of Winter Wheat Canopy Carotenoid Content with Ground- and Airborne-Based Hyperspectral Data

Ting Cui, Xianfeng Zhou*, Yufeng Huang, Yanting Guo, Yunrui Lin, Leyi Song, Jingcheng Zhang

College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China

* Corresponding Author: Xianfeng Zhou. Email: email

Phyton-International Journal of Experimental Botany 2023, 92(9), 2633-2648. https://doi.org/10.32604/phyton.2023.029259

Abstract

Accurate assessment of canopy carotenoid content (CCx+cC) in crops is central to monitor physiological conditions in plants and vegetation stress, and consequently supporting agronomic decisions. However, due to the overlap of absorption peaks of carotenoid (Cx+c) and chlorophyll (Ca), accurate estimation of carotenoid using reflectance where carotenoid absorb is challenging. The objective of present study was to assess CCx+cC in winter wheat (Triticum aestivum L.) with ground- and aircraft-based hyperspectral measurements in the visible and near-infrared spectrum. In-situ hyperspectral reflectance were measured and airborne hyperspectral data were acquired during major growth stages of winter wheat in five consecutive field experiments. At the canopy level, a remarkable linear relationship (R2 = 0.95, p < 0.001) existed between Cx+c and Ca, and correlation between CCx+cC and wavelengths within 400 to 1000 nm range indicated that CCx+cC could be estimated using reflectance ranging from visible to near-infrared wavebands. Results of Cx+c assessment based on chlorophyll and carotenoid indices showed that red edge chlorophyll index (CI red edge) performed with the highest accuracy (R2 = 0.77, RMSE = 22.27 μg/cm2 , MAE = 4.97 μg/cm2 ). Applying partial least square regression (PLSR) in CCx+cC retrieval emphasized the significance of reflectance within 700 to 750 nm range in CCx+cC assessment. Based on CI red edge index, use of airborne hyperspectral imagery achieved satisfactory results in mapping the spatial distribution of CCx+cC. This study demonstrates that it is feasible to accurately assess CCx+cC in winter wheat with red edge chlorophyll index provided that Cx+c correlated well with Ca+b at the canopy scale. it is therefore a promising method for CCx+cC retrieval at regional scale from aerial hyperspectral imagery.

Keywords


Cite This Article

APA Style
Cui, T., Zhou, X., Huang, Y., Guo, Y., Lin, Y. et al. (2023). Retrieval of winter wheat canopy carotenoid content with ground- and airborne-based hyperspectral data. Phyton-International Journal of Experimental Botany, 92(9), 2633-2648. https://doi.org/10.32604/phyton.2023.029259
Vancouver Style
Cui T, Zhou X, Huang Y, Guo Y, Lin Y, Song L, et al. Retrieval of winter wheat canopy carotenoid content with ground- and airborne-based hyperspectral data. Phyton-Int J Exp Bot. 2023;92(9):2633-2648 https://doi.org/10.32604/phyton.2023.029259
IEEE Style
T. Cui et al., "Retrieval of Winter Wheat Canopy Carotenoid Content with Ground- and Airborne-Based Hyperspectral Data," Phyton-Int. J. Exp. Bot., vol. 92, no. 9, pp. 2633-2648. 2023. https://doi.org/10.32604/phyton.2023.029259



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
  • 854

    View

  • 340

    Download

  • 0

    Like

Share Link