Response of bean (Phaseolus vulgaris L.) to elevated [CO2] in yield, biomass and Chlorophyll Fluorescence

Juan Quirós-Vargas, Rafael Diogo Caldeira, Nicolas Zendonadi dos Santos, Lars Zimmermann, Bastian Siegmann, Thorsten Kraska, Marta W. Vasconcelos, Uwe Rascher, Onno Muller

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The impact of elevated [CO2] (e[CO2]) in on yield, biomass (BM) and chlorophyll fluorescence (ChlF) was analyzed in three genotypes of common beans (Phaseolus vulgaris L.), a key food-security crop. Active- and passive-sensed ChlF traits acquired by the Light-Induced-Fluorescence-Transient (LIFT), Moni-Pulse-Amplitude-Modulation (MoniPAM), and Fluorescence Box (FloX) instruments were compared. Total biomass increased for all genotypes under e[CO2], but their biomass partitioning significantly differed. The highest yielding genotype under e[CO2] also showed the highest photosynthetic activity according to different active-sensed ChlF methods. Furthermore, e[CO2] resulted in earlier senescence, which was detected by either satellite- or FloX-derived Normalized Difference Vegetation Index (NDVI). Moreover, we observed a significant agreement between MoniPAM- and LIFT-measured ChlF data (R2 = 0.89, p = 0.02), as well as between SIF and FloX measurements (R2 = 0.62, p = 0.03).

Original languageEnglish
Title of host publication2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5861-5864
Number of pages4
ISBN (Electronic)9781665403696, 9781665403689
ISBN (Print)9781665447621
DOIs
Publication statusPublished - 2021
Event2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium
Duration: 12 Jul 202116 Jul 2021

Publication series

Name IEEE International Geoscience and Remote Sensing Symposium proceedings
PublisherInstitute of Electrical and Electronics Engineers
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003

Conference

Conference2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/TerritoryBelgium
CityBrussels
Period12/07/2116/07/21

Keywords

  • Biomass
  • FACE
  • FloX
  • Grain quality
  • LIFT
  • MoniPAM
  • Yield

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