Results 1 to 10 of about 2,694,025 (319)

Determination of the chlorophyll content of pistachio (Pistacia vera L.) kernels using various extraction techniques [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2019
The pistachio (Pistacia vera L.), a small nut tree belonging to the Anacardiaceae family, is extensively grown in Turkey, which is one of the leading world producers of pistachios.
Nogay Gözde   +5 more
doaj   +1 more source

Oyster growth across a salinity gradient in a shallow, subtropical Gulf of Mexico estuary

open access: yesExperimental Results, 2021
An increase in oyster aquaculture as a sustainable method of shellfish production is one response to overharvest and degradation of natural oyster reefs over the past century.
Benoit Lebreton   +5 more
doaj   +1 more source

Chlorophyll a spatial inference using artificial neural network from multispectral images and in situ measurements [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2013
Considering the importance of monitoring the water quality parameters, remote sensing is a practicable alternative to limnological variables detection, which interacts with electromagnetic radiation, called optically active components (OAC). Among these,
MONIQUE S. FERREIRA   +1 more
doaj   +3 more sources

Conversion of Chlorophyll b to Chlorophyll a via 7-Hydroxymethyl Chlorophyll [PDF]

open access: yesJournal of Biological Chemistry, 1996
Chlorophyll b is synthesized from chlorophyll a by the oxidation of the methyl group on the ring B of the tetrapyrrole ring to the formyl group. Previously, we reported that chlorophyllide b could be converted to chlorophyll a in isolated cucumber etioplasts indicating the conversion of chlorophyll b to chlorophyll a.
Tatsuyuki Ohtsuka   +2 more
openaire   +3 more sources

Impact of iron oxide nanoparticles on yellow medick (Medicago falcata L.) plants

open access: yesJournal of Plant Interactions, 2020
A large number of studies have explored the effects of various nanoparticles (NPs) on different economically important plant species. In this study, yellow medick plants were grown for five weeks using hydroponics with the addition of Fe3O4 NPs at 1, 2 ...
Inese Kokina   +3 more
doaj   +1 more source

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

open access: yesScientia 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   +4 more
doaj   +1 more source

Estimate of the trophic status of subarctic Imandra Lake [PDF]

open access: yesVestnik MGTU, 2017
The object of study is Imandra Lake – the largest reservoir of the Murmansk region. The lake is being influenced by the long-term and multi-factorial activities of mining and ore processing industries, air pollution and energetics.
Terent'eva I. A.   +2 more
doaj   +1 more source

Zooplankton as ecosystem indicators and their effects on eutrophication in Lake Arekit (Ethiopia) – implication for freshwater habitat management

open access: yesJournal of Freshwater Ecology, 2023
This paper examines the zooplankton abundance and composition along with various environmental factors in Lake Arekit – a shallow freshwater habitat in Ethiopia’s rift valley system. Zooplankton samples and specific environmental data were collected by a
Yirga Enawgaw   +3 more
doaj   +1 more source

The influence of disturbance scale on the natural recovery of biological soil crusts on the Colorado Plateau

open access: yesFrontiers in Microbiology, 2023
Up to 35% of global drylands have experienced degradation due to anthropogenic impacts, including physical disturbances like trampling and soil removal.
Sierra D. Jech   +2 more
doaj   +1 more source

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