Detection of Nutrient Deficiencies of Maize by Laser Induced Fluorescence Imaging

Heisel, F.; Sowińska, M.; Miehé, J.A.; Lang, Michael; Lichtenthaler, H. K.

doi:10.1016/s0176-1617(96)80083-6

Cited by 58 publications

(32 citation statements)

References 24 publications

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“…Upon UV excitation, both young and matured leaves emit red (R), green (G), and blue (B) fluorescence. These fluorescence characteristics have been normally observed for plant leaves, where the B and G fluorescence with the peak of 450-520 nm might be assigned to ferulic and hydroxycinnamic derivatives bound to the cell wall or mesophyll, and R fluorescence is originated from chlorophylls inside the chloroplast [26][27][28]. Interestingly, as shown in Figs.…”

Section: Total Antioxidant Capacitysupporting

confidence: 60%

The total antioxidant capacity and fluorescence imaging of selected plant leaves commonly consumed in Brunei Darussalam

Watu

Metussin

Yasin

et al. 2018

AIP Conference Proceedings

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Abstract. We investigated the total antioxidant capacity and fluorescence imaging of several selected plants, namely Centella asiatica, Aidia borneensis and Anacardium occidentale, which are grown and traditionally consumed in Brunei Darussalam. The total antioxidant capacities of aqueous-methanolic infusions of their leaves were measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity, and microscopic fluorescence images were measured to identify the fluorescent substances bound in the leaves. We found that the total antioxidant capacity of their infusions is estimated to be 150, 25, 15 folds, respectively, lower compared with that of the standard gallic acid. Accordingly, we demonstrated that the relative antioxidant activity of young and matured leaves agrees with the intensity of red light emission of their fresh leaves upon UV excitation. Thus, this non-invasive spectroscopic method can be potentially utilized to indicate the antioxidants in plant leaves qualitatively.

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Section: Total Antioxidant Capacitysupporting

confidence: 60%

The total antioxidant capacity and fluorescence imaging of selected plant leaves commonly consumed in Brunei Darussalam

Watu

Metussin

Yasin

et al. 2018

AIP Conference Proceedings

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“…However, our results show that BF/FRF (BFRR_UV) yielded the highest correlation with LCC (Figure 5c), suggesting that the BF/FRF (BFRR_UV) can serve as an indicator of the leaf chlorophyll. Similarly, Heisel et al [62] found that the BF/FRF (F440/F740) and BF/RF (F440/F690) were more sensitive to the growth conditions than the most frequently used chlorophyll fluorescence ratio RF/FRF (F690/F740).…”

Section: Estimation Of Lccmentioning

confidence: 90%

Investigation of Leaf Diseases and Estimation of Chlorophyll Concentration in Seven Barley Varieties Using Fluorescence and Hyperspectral Indices

Leufen

Hunsche

et al. 2013

Remote Sensing

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Abstract:Leaf diseases, such as powdery mildew and leaf rust, frequently infect barley plants and severely affect the economic value of malting barley. Early detection of barley diseases would facilitate the timely application of fungicides. In a field experiment, we investigated the performance of fluorescence and reflectance indices on (1) detecting barley disease risks when no fungicide is applied and (2) estimating leaf chlorophyll concentration (LCC). Leaf fluorescence and canopy reflectance were weekly measured by a portable fluorescence sensor and spectroradiometer, respectively. Results showed that vegetation indices recorded at canopy level performed well for the early detection of slightly-diseased plants. The combined reflectance index, MCARI/TCARI, yielded the best discrimination between healthy and diseased plants across seven barley varieties. The blue to far-red fluorescence ratio (BFRR_UV) and OSAVI were the best fluorescence and reflectance indices for estimating LCC, respectively, yielding R 2 of 0.72 and 0.79. Partial

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“…F690/F740) decreases with increasing leaf Chl content in a curvilinear relationship, which can be used as a good inverse indicator of Chl content changes due to plant growth or stress events (Buschmann, 2007). Finally, the UV excited blue-to-red/NIR fluorescence intensity ratios (F440/F690 and F440/F740) were proposed as indicators of the leaf physiological development (Stober et al, 1994;Meyer et al, 2003), but also as marker of the nutrition availability and stress occurrence (Heisel et al, 1996). The red and NIR fluorescence emissions by Chl a are highly dynamic, being modulated by photochemical and non-photochemical quenching.…”

Section: Chlorophyll Fluorescencementioning

confidence: 99%

Spectral Remote Sensing of the Responses of Soybean Plants to Environmental Stresses

Krezhova¹

2011

Soybean - Genetics and Novel Techniques for Yield Enhancement

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Detection of Nutrient Deficiencies of Maize by Laser Induced Fluorescence Imaging

Cited by 58 publications

References 24 publications

The total antioxidant capacity and fluorescence imaging of selected plant leaves commonly consumed in Brunei Darussalam

The total antioxidant capacity and fluorescence imaging of selected plant leaves commonly consumed in Brunei Darussalam

Investigation of Leaf Diseases and Estimation of Chlorophyll Concentration in Seven Barley Varieties Using Fluorescence and Hyperspectral Indices

Spectral Remote Sensing of the Responses of Soybean Plants to Environmental Stresses

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