Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Enrichment of the Information Extracted From Hyperspectral Reflectance Images for Noninvasive Phenotyping

Version 1 : Received: 21 December 2021 / Approved: 21 December 2021 / Online: 21 December 2021 (12:23:13 CET)

How to cite: Solovchenko, A.; Shurygin, B.; Kuzin, A.; Velichko, V.; Solovchenko, O.; Nikolenko, A.; Krylov, A. Enrichment of the Information Extracted From Hyperspectral Reflectance Images for Noninvasive Phenotyping. Preprints 2021, 2021120325 (doi: 10.20944/preprints202112.0325.v1). Solovchenko, A.; Shurygin, B.; Kuzin, A.; Velichko, V.; Solovchenko, O.; Nikolenko, A.; Krylov, A. Enrichment of the Information Extracted From Hyperspectral Reflectance Images for Noninvasive Phenotyping. Preprints 2021, 2021120325 (doi: 10.20944/preprints202112.0325.v1).

Abstract

Hyperspectral reflectance imaging is an emerging method for rapid non-invasive quantitative screening of plant traits. This method is essential for high-throughput phenotyping and hence for accelerated breeding of crop plants as well as for precision agriculture practices. However, extraction of sensible information from reflectance images is hindered by the complexity of plant optical properties, especially when they are measured in the field. We propose using reflectance indices (Plant Senescence Reflectance Index, PSRI; Anthocyanin Reflectance Index, ARI; and spectral deconvolution) previously developed for remote sensing of vegetation and point-based reflectometers to infer the spatially resolved information on plant development and biochemical composition using ripening apple fruit as the model. Specifically, the proposed approach enables capturing data on distribution of chlorophylls and primary carotenoids as well as secondary carotenoids (both linked with fruit ripening and leaf senescence during plant development) as well as the information on spatial distribution of anthocyanins (known as stress pigments) over the plant surface. We argue that the proposed approach would enrich the phenotype assessments made on the base of reflectance image analysis with valuable information on plant physiological condition, stress acclimation state, and the progression of the plant development.

Keywords

phenotyping; proximal sensing; reflectance imaging; vegetation indices; hyperspectral reflectance; chlorophylls; carotenoids; anthocyanins; senescence; ripening

Subject

BIOLOGY, Agricultural Sciences & Agronomy

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