Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato
Vegetation indices (VIs) related to plant greenness have been studied extensively for the remote detection of foliar nitrogen content. Yet, the potential of chlorophyll fluorescence (ChlF) and photoprotection-based indices such as the photochemical reflectance index (PRI) or the chlorophyll/caroteno...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/15/10/2498 |
| _version_ | 1827740269144965120 |
|---|---|
| author | Jaakko Oivukkamäki Jon Atherton Shan Xu Anu Riikonen Chao Zhang Teemu Hakala Eija Honkavaara Albert Porcar-Castell |
| author_facet | Jaakko Oivukkamäki Jon Atherton Shan Xu Anu Riikonen Chao Zhang Teemu Hakala Eija Honkavaara Albert Porcar-Castell |
| author_sort | Jaakko Oivukkamäki |
| collection | DOAJ |
| description | Vegetation indices (VIs) related to plant greenness have been studied extensively for the remote detection of foliar nitrogen content. Yet, the potential of chlorophyll fluorescence (ChlF) and photoprotection-based indices such as the photochemical reflectance index (PRI) or the chlorophyll/carotenoid index (CCI) for the detection of a wide range of nutrients remains elusive. We measured the dynamics of foliar macro- and micronutrient contents in potato plants as affected by fertilization and water stress, along with leaf and canopy level observations of spectral reflectance and ChlF (or solar-induced fluorescence). ChlF and photoprotection-related indices were more strongly related to a wide range of foliar nutrient contents compared to greenness-based indices. At the leaf level, relationships were largely mediated by foliar chlorophyll contents (Cab) and leaf morphology, which resulted in two contrasting groupings: a group dominated by macronutrients N, P, K, and Mg that decreased during canopy development and was positively correlated with Cab, and a group including Cu, Mn, Zn, and S that increased and was negatively related to Cab. At the canopy-level, spectral indices were additionally influenced by canopy structure, and so their capacity to detect foliar nutrient contents depends on the spatiotemporal covariation between foliar Cab, morphology, and canopy structure within the observations. |
| first_indexed | 2024-03-11T03:22:34Z |
| format | Article |
| id | doaj.art-970a7d4511bc4f3c97fc4716c1f84d15 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-11T03:22:34Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-970a7d4511bc4f3c97fc4716c1f84d152023-11-18T03:05:58ZengMDPI AGRemote Sensing2072-42922023-05-011510249810.3390/rs15102498Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in PotatoJaakko Oivukkamäki0Jon Atherton1Shan Xu2Anu Riikonen3Chao Zhang4Teemu Hakala5Eija Honkavaara6Albert Porcar-Castell7Optics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandOptics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandOptics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandOptics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandOptics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandDepartment of Remote Sensing and Photogrammetry, Finnish Geospatial Research Institute, National Land Survey of Finland, Vuorimiehentie 5, 02150 Espoo, FinlandDepartment of Remote Sensing and Photogrammetry, Finnish Geospatial Research Institute, National Land Survey of Finland, Vuorimiehentie 5, 02150 Espoo, FinlandOptics of Photosynthesis Laboratory, Institute for Atmospheric and Earth System Research/Forest Sciences and Viikki Plant Science Center, University of Helsinki, 00014 Helsinki, FinlandVegetation indices (VIs) related to plant greenness have been studied extensively for the remote detection of foliar nitrogen content. Yet, the potential of chlorophyll fluorescence (ChlF) and photoprotection-based indices such as the photochemical reflectance index (PRI) or the chlorophyll/carotenoid index (CCI) for the detection of a wide range of nutrients remains elusive. We measured the dynamics of foliar macro- and micronutrient contents in potato plants as affected by fertilization and water stress, along with leaf and canopy level observations of spectral reflectance and ChlF (or solar-induced fluorescence). ChlF and photoprotection-related indices were more strongly related to a wide range of foliar nutrient contents compared to greenness-based indices. At the leaf level, relationships were largely mediated by foliar chlorophyll contents (Cab) and leaf morphology, which resulted in two contrasting groupings: a group dominated by macronutrients N, P, K, and Mg that decreased during canopy development and was positively correlated with Cab, and a group including Cu, Mn, Zn, and S that increased and was negatively related to Cab. At the canopy-level, spectral indices were additionally influenced by canopy structure, and so their capacity to detect foliar nutrient contents depends on the spatiotemporal covariation between foliar Cab, morphology, and canopy structure within the observations.https://www.mdpi.com/2072-4292/15/10/2498chlorophyll fluorescencepotato (<i>Solanum tuberosum</i> L.), SIFPRIUAVcanopy structure |
| spellingShingle | Jaakko Oivukkamäki Jon Atherton Shan Xu Anu Riikonen Chao Zhang Teemu Hakala Eija Honkavaara Albert Porcar-Castell Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato Remote Sensing chlorophyll fluorescence potato (<i>Solanum tuberosum</i> L.), SIF PRI UAV canopy structure |
| title | Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato |
| title_full | Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato |
| title_fullStr | Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato |
| title_full_unstemmed | Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato |
| title_short | Investigating Foliar Macro- and Micronutrient Variation with Chlorophyll Fluorescence and Reflectance Measurements at the Leaf and Canopy Scales in Potato |
| title_sort | investigating foliar macro and micronutrient variation with chlorophyll fluorescence and reflectance measurements at the leaf and canopy scales in potato |
| topic | chlorophyll fluorescence potato (<i>Solanum tuberosum</i> L.), SIF PRI UAV canopy structure |
| url | https://www.mdpi.com/2072-4292/15/10/2498 |
| work_keys_str_mv | AT jaakkooivukkamaki investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT jonatherton investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT shanxu investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT anuriikonen investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT chaozhang investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT teemuhakala investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT eijahonkavaara investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato AT albertporcarcastell investigatingfoliarmacroandmicronutrientvariationwithchlorophyllfluorescenceandreflectancemeasurementsattheleafandcanopyscalesinpotato |