Results 11 to 20 of about 801,404 (300)

Earlier quantification of rice blast impact via instantaneous chlorophyll fluorescence [PDF]

Plant Methods
Background Rice blast, one of the major diseases causing significant rice yield loss, downregulates the photosynthetic activity and induces aggressive spread of cell death causing food security concerns.
Insu Yeon, Jihyeon Yeo, Yejin Park, Ghiseok Kim, Jae Hoon Lee, Hyungsuk Kimm   +5 more
doaj   +2 more sources

Seasonal biases in fluorescence-estimated chlorophyll-a derived from biogeochemical profiling floats

Communications Earth & Environment
Marine phytoplankton biomass and chlorophyll-a concentration are often estimated from pigment fluorescence measurements, which have become routine despite known variability in the fluorescent response for a given amount of chlorophyll-a. Here, we present
Jacqueline S. Long, Yuichiro Takeshita, Joshua N. Plant, Nina Buzby, Andrea J. Fassbender, Ken S. Johnson   +5 more
doaj   +2 more sources

Chlorophyll Fluorescence, Oxygen Consumption Rates and Germination of Green Soybean Seeds Produced Under Heat–Drought Stress [PDF]

Plant Direct
Heat–drought stress during the late development of soybean seeds (Glycine max [L.] Merr.) adversely affects chlorophyll degradation, resulting in green seeds with low physiological quality.
M. A. Martinez, N. H. Montechiarini, C. O. Gosparini, B. Oppedijk, B. vanDuijn   +4 more
doaj   +2 more sources

Can chlorophyll fluorescence imaging make the invisible visible?

, 2021
Chlorophyll fluorescence has developed into a well-established noninvasive technique to study photosynthesis and by extension, the physiology of plants and algae.
R. VALCKE, VALCKE, Roland, R. VALCKE
core   +1 more source

Deriving sun-induced chlorophyll fluorescence from airborne based spectrometer data [PDF]

, 2010
Sun-induced chlorophyll fluorescence (Fs) is a promising parameter for remote measuring plant photosynthesis. It has been demonstrated that Fs at cell and leaf level is strongly related to photosynthesis.
Schaepman, Michael E; https://orcid.org/, Rascher, U., Schaepman, M., Schickling, A, Schaepman, M.E., Schlapfer, D., Schläpfer, D, Rascher, U, Damm, A; https://orcid.org/, Damm, A., Schickling, A.   +10 more
core   +1 more source

Vertical distributions of chlorophyll in deep, warm monomictic lakes [PDF]

, 2010
The factors affecting vertical distributions of chlorophyll fluorescence were examined in four temperate, warm monomictic lakes. Each of the lakes (maximum depth >80 m) was sampled over 2 years at intervals from monthly to seasonal.
Brookes, Justin D., O’Brien, Katherine R., Brookes, Justin D, O'Brien, Katherine R, McBride, Chris G, Burford, M., Hamilton, David P, Burford, Michele A, Hamilton, D., Burford, Michele A., McBride, C., McBride, Chris G., Brookes, J., O'Brien, K., O'Brien, Katherine R., Hamilton, David P.   +15 more
core   +1 more source

Study of factors controlling the photoprotection capacity of the thylakoid membrane [PDF]

, 2010
PhDPlants require light for the process of photosynthesis, but excess of light absorption can cause photooxidative damage. To avoid this damage, plants have evolved a photoprotective mechanism to dissipate excess light energy as heat in a process ...
Zia, Ahmad
core   +3 more sources

Early Water Stress Detection Using Leaf-Level Measurements of Chlorophyll Fluorescence and Temperature Data

Remote Sensing, 2015
The purpose of this paper was to investigate the early water stress in maize using leaf-level measurements of chlorophyll fluorescence and temperature.
Zhuoya Ni, Zhigang Liu, Hongyuan Huo, Zhao-Liang Li, Françoise Nerry, Qingshan Wang, Xiaowen Li   +6 more
doaj   +1 more source

Analysis of initial chlorophyll fluorescence induction kinetics in chloroplasts in terms of rate constants of donor side quenching release and electron trapping in photosystem II [PDF]

, 2008
The fluorescence induction F(t) of dark-adapted chloroplasts has been studied in multi-turnover 1 s light flashes (MTFs). A theoretical expression for the initial fluorescence rise is derived from a set of rate equations that describes the sequence of ...
Vredenberg, W.J.
core   +1 more source

Vertical distribution of chlorophyll a concentration and phytoplankton community composition from in situ fluorescence profiles: a first database for the global ocean [PDF]

Earth System Science Data, 2015
In vivo chlorophyll a fluorescence is a proxy of chlorophyll a concentration, and is one of the most frequently measured biogeochemical properties in the ocean.
R. Sauzède, H. Lavigne, H. Claustre, J. Uitz, C. Schmechtig, F. D'Ortenzio, C. Guinet, S. Pesant   +7 more
doaj   +1 more source