Results 21 to 30 of about 13,743 (144)

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

Plant 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, Yufeng Ge, Xinyan Xie, Abbas Atefi, Nuwan K. Wijewardane, Suresh Thapa   +5 more
doaj   +1 more source

Molecular Mapping of Water-Stress Responsive Genomic Loci in Lettuce (Lactuca spp.) Using Kinetics Chlorophyll Fluorescence, Hyperspectral Imaging and Machine Learning

Frontiers in Genetics, 2021
Deep understanding of genetic architecture of water-stress tolerance is critical for efficient and optimal development of water-stress tolerant cultivars, which is the most economical and environmentally sound approach to maintain lettuce production with
Pawan Kumar, Renee L. Eriksen, Ivan Simko, Beiquan Mou   +3 more
doaj   +1 more source

A cotton leaf nitrogen monitoring model based on spectral-fluorescence data fusion

Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 2023
In the present study, hyperspectral imaging and remote sensing of fluorescence were integrated to monitor the nitrogen content in leaves of drip-irrigated cotton at different growth periods in northern Xinjiang, China.
Xiu LIN, Faduman HA, Lulu MA, Xiangyu CHEN, Yiru MA, Aiqun CHEN, Zhenan HOU, Ze ZHANG   +7 more
doaj   +1 more source

Using Scuba for In Situ Determination of Chlorophyll Distributions in Corals by Underwater Near Infrared Fluorescence Imaging

Journal of Marine Science and Engineering, 2020
Studies reporting quantitation and imaging of chlorophyll in corals using visible fluorescent emission in the red near 680 nm can suffer from competing emission from other red-emitting pigments.
Thomas Oh, Jittiwat Sermsripong, Barry W. Hicks   +2 more
doaj   +1 more source

High-Throughput Corn Image Segmentation and Trait Extraction Using Chlorophyll Fluorescence Images [PDF]

Plant Phenomics, 2021
Plant segmentation and trait extraction for individual organs are two of the key challenges in high-throughput phenotyping (HTP) operations. To address this challenge, the Ag Alumni Seed Phenotyping Facility (AAPF) at Purdue University utilizes chlorophyll fluorescence images (CFIs) to enable consistent and efficient automatic segmentation of plants of
Augusto Souza, Yang Yang
openaire   +3 more sources

Autofluorescence in Plants

Molecules, 2020
Plants contain abundant autofluorescent molecules that can be used for biochemical, physiological, or imaging studies. The two most studied molecules are chlorophyll (orange/red fluorescence) and lignin (blue/green fluorescence). Chlorophyll fluorescence
Lloyd Donaldson
doaj   +1 more source

On the Importance of Non-Gaussianity in Chlorophyll Fluorescence Imaging

Remote Sensing, 2023
We propose a mathematical study of the statistics of chlorophyll fluorescence indices. While most of the literature assumes Gaussian distributions for these indices, we demonstrate their fundamental non-Gaussian nature. Indeed, while the noise in the raw
Angelina El Ghaziri, Nizar Bouhlel, Natalia Sapoukhina, David Rousseau   +3 more
doaj   +1 more source

In vivo label-free mapping of the effect of a photosystem II inhibiting herbicide in plants using chlorophyll fluorescence lifetime

Plant Methods, 2017
Background In order to better understand and improve the mode of action of agrochemicals, it is useful to be able to visualize their uptake and distribution in vivo, non-invasively and, ideally, in the field.
Elizabeth Noble, Sunil Kumar, Frederik G. Görlitz, Chris Stain, Chris Dunsby, Paul M. W. French   +5 more
doaj   +1 more source

Bay Leaf Extract-Based Near-Infrared Fluorescent Probe for Tissue and Cellular Imaging

Journal of Imaging, 2021
The development of fluorescence dyes for near-infrared (NIR) fluorescence imaging has been a significant interest for deep tissue imaging. Among many imaging fluoroprobes, indocyanine green (ICG) and its analogues have been used in oncology and other ...
Benilde Adriano, Nycol M. Cotto, Neeraj Chauhan, Vinita Karumuru, Meena Jaggi, Subhash C. Chauhan, Murali M. Yallapu   +6 more
doaj   +1 more source

Application of modulated chlorophyll fluorescence and modulated chlorophyll fluorescence imaging to study the environmental stresses effect

Annali di Botanica, 2016
Chlorophyll (Chl) a fluorescence is a widely used tool to monitor the photosynthetic process in plants subjected to environmental stresses. this review reports the theoretical bases of Chl fluorescence, and the significance of the most important Chl fluorescence parameters.
Guidi, L., Landi, M., Penella, C., Calatayud, A.   +3 more
openaire   +4 more sources