Results 141 to 150 of about 21,000 (274)

Estudos de fluorescencia em organo-gel [PDF]

, 1997
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Um novo campo de estudo tem sido aberto com a solubilização de gelatina em microemulsão água em óleo. O sistema MBG é formado por Aerosol-OT, água e
Souza, Donizete de
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Marine phytoplankton primary production and ecophysiology using chlorophyll-A fluorescence

, 2007
Marine phytoplankton ecophysiological state and primary production measurements have typically been controversial due to potential impacts of measurement techniques.
Cosgrove, Jeffrey John
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Fluorescence-based primary productivity estimates are influenced by non-photochemical quenching dynamics in Arctic phytoplankton. [PDF]

Front Microbiol, 2023
Sezginer Y, Campbell D, Pillai S, Tortell P.   +3 more
europepmc   +1 more source

The quantum efficiency of photosystem II and its relation to non-photochemical quenching of chlorophyll fluorescence; the effect of measuring-and growth temperature

, 1990
The relation between the quantum yield of oxygen evolution of open photosystem II reactions centers (Φp), calculated according to Weis and Berry (1987), and non-photochemical quenching of chlorophyll fluorescence of plants grown at 19°C and 7°C was ...
Van Wijk, Klaas J., Van Hasselt, Philip R.   +1 more
core   +1 more source

Morphophysiology of cowpea under salt stress and application of carbon-based nanobiostimulant in the vegetative stage

Revista Brasileira de Engenharia Agrícola e Ambiental
Several technologies have been implemented to improve plant performance in irrigated crops, and one of them is the use of nanobiostimulants. Therefore, the aim of the present study was to explore the effects of applying different concentrations of a ...
Letícia K. B. de Oliveira, Rafael S. da Costa, Johny de S. Silva, Bruna A. da Silva, Késsia V. G. de Lima, Maria B. dos S. Pinto, Ana B. P. Batista, Felipe J. L. da Silva, Toshik I. da Silva, Rosilene O. Mesquita   +9 more
doaj   +1 more source

Quenching of excited uranyl ion during its photochemical reduction with triphenylphosphine: Part IV - Effect of heterocyclic molecules [PDF]

, 1994
253-254The presence of heterocyclic compounds triggers off a competition between photo physical and photochemical annihilation of excited uranyl ion during its photochemical reduction with triphenylphosphine.
Sidhu, M S, Bhatia, P V K
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Non-photochemical quenching of photosystem I as an adaptive response to prolonged drought. [PDF]

J Exp Bot, 2023
Arellano JB.
europepmc   +1 more source

Fluorescence and photochemical quenching in photosynthetic reaction centers. [PDF]

Proceedings of the National Academy of Sciences, 1968
K L, Zankel, D W, Reed, R K, Clayton
openaire   +2 more sources

Photoinhibition, carotenoid composition and the co-regulation of photochemical and non-photochemical quenching in neotropical savanna trees

, 2015
Plants in the neotropical savannas of central Brazil are exposed to high irradiances, high air temperatures and low relative humidities. These conditions impose a selection pressure on plants for strong stomatal regulation of transpiration to maintain ...
Orthen, Birgit, Franco, Augusto C, Matsubara, Shizue   +2 more
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Quenching of excited uranyl ion during its photochemical reduction triphenylphosphine: Part 1-Effect of monosubstituted benzene derivatives [PDF]

, 1991
117-118The relative rates of quenching of excited uranyl ion by benzonitrile, aeetopbenone, bromo benzene, chlorobenzene, biphenyl and aniline have been measured during photochemical reduction of uranyl ion by triphenylphosphine. The quenching of excited
Sidhu, M S, Sandhu, S S, Chopra, (Miss) A   +2 more
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