Results 31 to 40 of about 13,743 (144)

Chlorophyll Fluorescence Imaging of the Chlorophyll Fluorescence Induction Phenomenon for Plant Health Monitoring

open access: yesEnvironment Control in Biology, 2009
Chlorophyll fluorescence imaging is useful as a non-destructive method for evaluating photosynthetic function of plants. A dynamic change in chlorophyll fluorescence intensity, known as the chlorophyll fluorescence induction phenomenon, can be observed by illuminating a dark-adapted green leaf with a stable intensity excitation light.
Kotaro TAKAYAMA, Hiroshige NISHINA
openaire   +2 more sources

A Cheap Chlorophyll a Fluorescence Imaging System

open access: yesPhotosynthetica, 2000
A cheap chlorophyll (Chl) a fluorescence imaging system was developed for measuring leaf areas of 30×45 cm. Uniform saturating irradiances were created using CuSO4 filtered radiation from stroboscopes. The system was tested using maize leaves treated with diuron. Comparison was made with a small-area-measuring pulse amplified modulation Chl fluorometer.
P. Lootens, P. Vandecasteele
openaire   +1 more source

Enzymatic activity and chlorophyll fluorescence imaging of maize seedlings (Zea mays L.) after exposure to low doses of chlorsulfuron and cadmium

open access: yesJournal of Integrative Agriculture, 2018
The aim of this research was to study the influence of chlorsulfuron residue and cadmium on the enzymatic activity and photosynthetic apparatus of maize (Zea mays L.) plants.
Li-juan ZHAO   +5 more
doaj   +1 more source

Microalgae Monitoring in Microscale Photobioreactors via Multivariate Image Analysis

open access: yesChemEngineering, 2021
Microscale photobioreactors for microalgae growth represent an interesting technology for fast data production and biomass characterization; however, the small scale poses severe monitoring challenges, as traditional methods cannot be used.
Christopher Castaldello   +4 more
doaj   +1 more source

Solar-induced chlorophyll fluorescence imaging spectrometer: design, manufacture, and evaluation

open access: yesOptics Express, 2022
A scientific imaging spectrometer has been presented for the observation of solar-induced chlorophyll fluorescence of vegetation in NIR waveband, which may provide a new method to scale SIF application from leaf to canopy for the research of terrestrial vegetation photosynthesis.
Lei, Yu   +5 more
openaire   +2 more sources

Chlorophyll Fluorescence Video Imaging: A Versatile Tool for Identifying Factors Related to Photosynthesis

open access: yesFrontiers in Plant Science, 2018
Measurements of chlorophyll fluorescence provide an elegant and non-invasive means of probing the dynamics of photosynthesis. Advances in video imaging of chlorophyll fluorescence have now made it possible to study photosynthesis at all levels from ...
Thilo Rühle   +2 more
doaj   +1 more source

Noninvasive Phenotyping of Plant–Pathogen Interaction: Consecutive In Situ Imaging of Fluorescing Pseudomonas syringae, Plant Phenolic Fluorescence, and Chlorophyll Fluorescence in Arabidopsis Leaves

open access: yesFrontiers in Plant Science, 2019
Plant–pathogen interactions have been widely studied, but mostly from the site of the plant secondary defense. Less is known about the effects of pathogen infection on plant primary metabolism.
Sabrina Hupp   +7 more
doaj   +1 more source

Chlorophyll fluorescence in pepper seedlings after seed priming and induction of salt stress [PDF]

open access: yesRevista Ceres
Chlorophyll fluorescence analysis is a method that has been widely disseminated among researchers for ensuring fast, accurate and non-destructive results.
Júlia Gabriella da Silva Rocha Nobre   +5 more
doaj   +1 more source

Chlorophyll Fluorescence Imaging Combined with Active Oxygen Metabolism for Classification of Similar Diseases in Cucumber Plants

open access: yesAgronomy, 2023
It is a great challenge to identify different cucumber diseases at early stages based on conventional methods due to complex and similar symptoms. By contrast, chlorophyll fluorescence is an early indicator of membrane changes or disturbances during ...
Ye Sun   +3 more
doaj   +1 more source

Chlorophyll fluorescence imaging of photosynthetic activity with the flash-lamp fluorescence imaging system

open access: yesPhotosynthetica, 2005
A flash-lamp chlorophyll (Chl) fluorescence imaging system (FL-FIS) is described that allows to screen and image the photosynthetic activity of several thousand leaf points (pixels) of intact leaves in a non-destructive way within a few seconds. This includes also the registration of several thousand leaf point images of the four natural fluorescence ...
H. K. Lichtenthaler   +3 more
openaire   +1 more source

Home - About - Disclaimer - Privacy