Results 31 to 40 of about 114,080,730 (297)

Photosynthetic responses of heat-stressed apple leaves to foliar application of salicylic and ascorbic acid

Photosynthetica
High temperatures have significant impacts on fruit tree production. Foliar spraying application of promoting agents can be a sustainable approach to managing high-temperature stress in orchards.
I. MIHALJEVIĆ, M. VILJEVAC VULETIĆ, V. TOMAŠ, Z. ZDUNIĆ, D. VUKOVIĆ   +4 more
doaj   +1 more source

Variability of nutrients and chlorophyll a in Ancão Inlet during a spring tidal cycle in April 2009

Ciencias Marinas, 2011
São Luis or Ancão Inlet is the most western of the six inlets of the Ria Formosa lagoon, in southern Portugal. This inlet contributes relatively little to the water volume exchange over a tidal cycle (~10%).
P Alcântara, A Cravo, J Jacob
doaj   +1 more source

The statistical power to detect cross‐scale interactions at macroscales

Ecosphere, 2016
Macroscale studies of ecological phenomena are increasingly common because stressors such as climate and land‐use change operate at large spatial and temporal scales. Cross‐scale interactions (CSIs), where ecological processes operating at one spatial or
Tyler Wagner, C. Emi Fergus, Craig A. Stow, Kendra S. Cheruvelil, Patricia A. Soranno   +4 more
doaj   +1 more source

Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth

Geosciences, 2019
We validated simulations of the Earth system model (ESM) EC-Earth-NEMO of present-day temperature, salinity, nutrient, and chlorophyll a profiles with in situ observations in the Northeast Atlantic Ocean (29−63º N).
Nomikos Skyllas, Richard Bintanja, Anita G. J. Buma, Corina P. D. Brussaard, Matthias Gröger, Jenny Hieronymus, Willem H. van de Poll   +6 more
doaj   +1 more source

A new approach for estimating northern peatland gross primary productivity using a satellite-sensor-derived chlorophyll index

, 2011
Carbon flux models that are largely driven by remotely sensed data can be used to estimate gross primary productivity (GPP) over large areas, but despite the importance of peatland ecosystems in the global carbon cycle, relatively little attention has ...
A. Harris, J. Dash, Harris, A.; id_orcid, Harris, A., Dash, J.   +4 more
core   +1 more source

Development of a handheld chlorophyll content detector on wheat and maize leaves based on RGB sensor

Frontiers in Plant Science
Chlorophyll-a (CL-a) and chlorophyll-b (CL-b) are major chlorophyll found in green plants. Determining the CL-a, CL-b, and total chlorophyll (TCL) contents is important to guide crop growth.
Weidong Pan, Heng Ma, Rui Wang, Hongrui Wang, Dong Wang, Wenchuan Guo, Xiangkai Guo   +6 more
doaj   +1 more source

Water temperature and chlorophyll a density drive the genetic and epigenetic variation of Vallisneria natans across a subtropical freshwater lake

Ecology and Evolution, 2023
Plant genetic diversity differs in habitat's oscillations, especially species distributed under heterogeneous environmental conditions. Freshwater ecosystems are vulnerable to biotic and abiotic impacts, which affect the genetic and epigenetic variations
Yixian Li, Manli Xia, Xuyao Zhao, Hongwei Hou   +3 more
doaj   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

CHLOROPHYLL AND VITAMIN A. [PDF]

The Lancet, 1922
n ...
openaire   +4 more sources

Phytoplankton distribution and their relationship to environmental variables in Sanya Bay, South China Sea

Scientia Marina, 2010
Phytoplankton quantification was conducted in Sanya Bay from January 2005 to February 2006. A submersible in situ spectrofluorometer, which permits the differentiation of four algal groups (green algae, diatoms and dinoflagellates, cryptophytes and ...
Yanying Zhang, Junde Dong, Juan Ling, Youshao Wang, Si Zhang   +4 more
doaj   +1 more source