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chlorophyll, etc ; coastal water; fluoroquinolones; mariculture; pollution; risk assessment; rivers; salinity; selection pressure; total nitrogen; China; Yellow Sea; Show all 12 Subjects
Abstract:
... The pollution of antibiotics commonly existed throughout the entire aquaculture process, but the residues of antibiotics at different aquaculture stages have rarely been studied. This study investigated the occurrence, distribution and risk assessment of antibiotics at different aquaculture stages (the non-aquaculture stage, the early aquaculture stage, the middle aquaculture stage, and the late a ...
chlorophyll, etc ; Microcystis aeruginosa; active ingredients; calcium; cell membranes; human health; light; nanosheets; photocatalysis; photocatalysts; photosynthesis; phycobiliprotein; poisonous algae; pollution control; China; Show all 15 Subjects
Abstract:
... Frequent occurrence of harmful algal blooms has already threatened aquatic life and human health. In the present study, floating BiOCl₀.₆I₀.₄/ZnO photocatalyst was synthesized in situ by water bath method, and and applied in inactivation of Microcystis aeruginosa under visible light. The composition, morphology, chemical states, optical properties of the photocatalyst were also characterized. The ...
chlorophyll, etc ; anthropogenic activities; carbon; environmental factors; freshwater; humans; nitrogen; risk; spatial data; total nitrogen; total phosphorus; turbidity; water quality; water salinity; China; Show all 15 Subjects
Abstract:
... Anthropogenic and natural disturbance to inland aquatic ecosystems displays a notable spatial difference, yet data to measure these differences are scarce. This study encompasses 217 lakes distributed over five lake regions of China and elucidates the environmental factors determining the spatial variability of the water quality and trophic status. A significant correlation between human modificat ...
chlorophyll, etc ; lakes; macrophytes; microcystins; nitrates; nitrogen; orthophosphates; phosphorus; phytoplankton; pollution; public health; risk; risk assessment; sediments; total nitrogen; total organic carbon; total phosphorus; water management; China; Show all 19 Subjects
Abstract:
... Understanding the history of microcystins (MCs) pollution in large lakes can help inform future lake management. We collected sediment cores from Lake Taihu to: investigate the long-term record of MCs (MC-LR, MC-YR, and MC-RR), explore the main environmental drivers of MCs, and assess their public health and ecological risks. Results showed that MCs content in all cores increased over time. The co ...
chlorophyll; leaf chlorophyll content, etc ; algorithms; disease severity; leaves; pests; regression analysis; vegetation index; Show all 8 Subjects
Abstract:
... Hyperspectral imaging-derived vegetation indices (VIs) have rarely been developed to estimate leaf chlorophyll content of mangrove forests under pest and disease stress. Moreover, the optimal newly-developed hyperspectral VI is generally chosen through comparison of model accuracy alone with all possible VI combinations, which might render the conclusion one-sided. With SOC710 hyperspectral images ...
... Accurate estimation of chlorophyll content is important for diagnosing the physiological and phenological status of vegetation. Establishing the relationship between vegetation indices (VIs) and leaf chlorophyll content using remote sensing is crucial for large-scale earth observation. However, existing VIs for estimating chlorophyll content generally suffer from the saturation effect or depend on ...
... Plant nutrition has a vital role in crop production. This study was performed to investigate the effects of different application methods of some nutrients (nano Fe, Zn, and Ti), and gibberellin on yield, some morphophysiological and grain protein of white beans in 2018 as a factorial experiment in a randomized complete block design with four replications. Experimental factors included seed primin ...
chlorophyll; chlorophyll binding proteins, etc ; energy conversion; fluorescence; leaves; mutants; photosynthetic electron transport; photosystem II; reactive oxygen species; rice; Show all 10 Subjects
Abstract:
... To elucidate the photosynthetic performance of rice mutant with low chlorophyll content, we assessed light energy conversion and photosynthetic electron transport at the flowering stage in rice of yellow-green leaf mutant (ygl) and a control with normal pigment content (IR36) under field conditions. The results showed that the reduced chlorophyll content and high expression levels of chlorophyll-b ...
chlorophyll, etc ; anodes; delamination; dyes; energy; zinc; Show all 6 Subjects
Abstract:
... Two-dimensional (2D) MXenes have attracted extensive attentions for their excellent energy storage ability. In the current study, our main goal is to report on the delamination of the Nb₂C MXene using a chlorophyll-a derivative (zinc methyl 3-devinyl-3-hydroxymethyl-pyropheophorbide a (Chl)) to produce Chl@Nb₂C composites as the anode materials in the lithium-ion batteries. The electrochemical beh ...
... The spatio-temporal variation of leaf chlorophyll content is an important crop phenotypic trait that is of great significance for evaluating crop productivity. This study used a soil-plant analysis development (SPAD) chlorophyll meter for non-destructive monitoring of leaf chlorophyll dynamics to characterize the patterns of spatio-temporal variation in the nutritional status of maize (Zea mays L. ...
chlorophyll; leaf chlorophyll content, etc ; cultivars; fertilizers; field capacity; greenhouses; leaves; nickel oxide; physiological response; rice; spectrophotometers; submergence; vegetative growth; Indonesia; Show all 14 Subjects
Abstract:
... Nio SA, Ludong DPM, Siahaan R. 2022. Short communication: Pattern of chlorophylls content declined during partial submergence for rice varieties cultivated in North Sulawesi at the vegetative stage. Biodiversitas 23: 2451-2456. Submergence or flooding stress limits plant growth in various physiological, anatomical, and morphological aspects. This study examined leaf chlorophyll content as a physio ...
chlorophyll, etc ; fermentation; fluorescence; oxygen; photosynthesis; spatial variation; Show all 6 Subjects
Abstract:
... Currently, only non-imaging chlorophyll fluorescence measurements are used to identify the Lower Oxygen Limit (LOL) in Dynamic Controlled Atmosphere - Chlorophyll Fluorescence (DCA-CF) storage. The disadvantage of non-imaging fluorescence is that no statement can be made about the spatial heterogeneity of the sample. In contrast, chlorophyll fluorescence imaging can detect spatial heterogeneity of ...
chlorophyll, etc ; horticulture; lettuce; light intensity; photosynthesis; temperature; Show all 6 Subjects
Abstract:
... Lettuce is an important vegetable in horticulture, but information about the interactive effects of light and temperature on its photosynthetic characteristics was inadequate. This work investigated the effects of three temperatures (15/10 (T15), 23/18 (T23), and 30/23 °C (T30)) and five light treatments (100 (P100), 200 (P200), 350 (P350), 500 (P500), and 600 μmol·m⁻²·s⁻¹ (P600)) on the light–res ...
chlorophyll, etc ; basins; biotopes; macrophytes; organic matter; sediments; Show all 6 Subjects
Abstract:
... First data on the concentrations of plant pigments in the top layer of bottom sediments are given for a large, shallow, moderately overgrown by macrophytes (21.5%) the Kostromskoe widening of the Gorky Reservoir. The data were collected from 2009 to 2020. The concentration of chlorophyll a degradation products, i.e., pheopigments, was found to be high (91 ± 3%). The spatial distribution of pigment ...
chlorophyll, etc ; climate; color; oceanography; satellites; Indian Ocean; Show all 6 Subjects
Abstract:
... The Indian Ocean Dipole (IOD) is a basin-wide ocean–atmosphere phenomenon that has profound impacts on the global climate, land, and ocean. The Dipole Mode Index (DMI), which is defined as the difference of the sea surface temperature (SST) anomaly in the east IOD zone and the west IOD zone has long been used to characterize and quantify the strength of IOD events. In this study, we propose biolog ...
chlorophyll, etc ; absorption; boron; chlorins; condensation reactions; moieties; Show all 6 Subjects
Abstract:
... Cyclopheophorbide-a prepared from intramolecular mixed Claisen condensation of methyl pyropheophorbide-a (one of the chlorophyll-a derivatives) was complexed with a difluoroboron species at the β-diketonate moiety on the exo-five-membered ring fusing the core cyclic tetrapyrrole π-skeleton. Its 3-substituted chlorin analogs and the related bacteriochlorin were also synthesized by difluoroboronatio ...
chlorophyll, etc ; algorithms; inland waters; models; reflectance; variance; Show all 6 Subjects
Abstract:
... Remote sensing technology has been a popular tool with high potential to measure chlorophyll-a concentration in inland waters. This study proposed the band ratio algorithm to estimate the chlorophyll-a concentration in inland water using a machine learning approach. The blue-green, NIR-red band ratios, and the three-band models were sensitive to chlorophyll-a concentration in various water bodies. ...
chlorophyll, etc ; data collection; turbidity; uncertainty; water quality; Show all 5 Subjects
Abstract:
... The spatial representativeness of the in-situ data is an important prerequisite for ensuring the reliability and accuracy of remote sensing product retrieval and verification. Limited by the collection cost and time window, it is essential to simultaneously collect multiple water parameter data in water tests. In the shipboard measurements, sampling design faces problems, such as heterogeneity of ...
chlorophyll, etc ; biomass; floodplains; macrophytes; phytoplankton; rivers; Poland; Show all 7 Subjects
Abstract:
... In the years 2007–2015, phytoplankton of six floodplain lakes of the Lower Vistula were studied. During this period, river levels were recorded ranging from normal to both extremely high and extremely low. The research attempted to answer two questions: (i) Do the distributions of phytoplankton communities differ between different types of floodplain lakes? (ii) How are the phytoplankton in floodp ...
chlorophyll, etc ; ammonia; computer vision; soil; supply chain; Show all 5 Subjects
Abstract:
... Computer Vision Systems (CVS) offer a non-destructive and contactless tool to assign visual quality level to fruit and vegetables and to estimate some of their internal characteristics. The innovative CVS described in this paper exploits the combination of image processing techniques and machine learning models (Random Forests) to assess the visual quality and predict the internal traits on unpack ...