Results 31 to 40 of about 2,554,240 (277)

Chlorophyll fluorescence imaging for process optimisation in horticulture and fresh food production [PDF]

open access: yesPhotosynthetica (Praha), 2021
Chlorophyll a fluorescence analysis (CFA) has been accepted to study postharvest activity and stability of photosynthesis of vegetables and salad greens, and some fruits.
W. Herppich
semanticscholar   +2 more sources

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   +2 more sources

Validation and application of the MERIS Terrestrial Chlorophyll Index. [PDF]

open access: yes
Climate is one of the key variables driving ecosystems at local to global scales. How and to what extent vegetation responds to climate variability is a challenging topic for global change analysis.
Almond, Samuel Francis
core   +9 more sources

Low-Cost Chlorophyll Fluorescence Imaging System Applied in Plant Physiology Status Detection

open access: yes智慧农业, 2023
ObjectiveChlorophyll fluorescence (ChlF) emission from photosystem II (PSII) is closely coupled with photochemical reactions. As an efficient and non-destructive means of obtaining plant photosynthesis efficiency and physiological state information, the ...
YANG Zhenyu   +6 more
doaj   +1 more source

Use of a highly sensitive two-dimensional luminescence imaging system to monitor endogenous bioluminescence in plant leaves. [PDF]

open access: yes, 2004
Background All living organisms emit spontaneous low-level bioluminescence, which can be increased in response to stress. Methods for imaging this ultra-weak luminescence have previously been limited by the sensitivity of the detection systems used ...
McCabe, Tulene C   +3 more
core   +5 more sources

Pre-Symptomatic Detection of Viral Infection in Tobacco Leaves Using PAM Fluorometry

open access: yesPlants, 2021
Chlorophyll fluorescence imaging was used to study potato virus X (PVX) infection of Nicotiana benthamiana. Infection-induced changes in chlorophyll fluorescence parameters (quantum yield of photosystem II photochemistry (ΦPSII) and non-photochemical ...
Alyona Grishina   +8 more
doaj   +1 more source

Quantitative imaging of chlorophyll fluorescence [PDF]

open access: yesNew Phytologist, 1995
summaryA computer‐controlled video system is described where images of chlorophyll fluorescence from oat (Arena saliva L.) leaves are captured throughout an induction curve. The fluorescence parameters φ11 and ΔFm/F'm which represent photosystem II photochemical efficiency and non‐photochemical quenching respectively are calculated from images taken ...
Stephen A, Rolfe, Julie D, Scholes
openaire   +2 more sources

High throughput analysis of leaf chlorophyll content in sorghum using RGB, hyperspectral, and fluorescence imaging and sensor fusion

open access: yesPlant Methods, 2022
Background Leaf chlorophyll content plays an important role in indicating plant stresses and nutrient status. Traditional approaches for the quantification of chlorophyll content mainly include acetone ethanol extraction, spectrophotometry and high ...
Huichun Zhang   +5 more
doaj   +1 more source

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