نتایج جستجو برای: salinity indicator

تعداد نتایج: 99461  

Journal: :Physiological and biochemical zoology : PBZ 2003
Carol Eunmi Lee Christine H Petersen

Invasive species are commonly thought to have broad tolerances that enable them to colonize new habitats, but this assumption has rarely been tested. In particular, the relative importance of acclimation (plasticity) and adaptation for invasion success are poorly understood. This study examined effects of short-term and developmental acclimation on adult salinity tolerance in the copepod Euryte...

2008
Boyin Huang Yan Xue David W. Behringer

[1] Salinity profiles collected by the International Argo Project (International Argo Project data are available at http://argo.jcommops.org) since 2000 provide us an unprecedented opportunity to study impacts of salinity data on the quality of ocean analysis, which has been hampered by a lack of salinity observations historically. The operational Global Ocean Data Assimilation System (GODAS) d...

2017
S. Negrão S. M. Schmöckel M. Tester

BACKGROUND Because soil salinity is a major abiotic constraint affecting crop yield, much research has been conducted to develop plants with improved salinity tolerance. Salinity stress impacts many aspects of a plant's physiology, making it difficult to study in toto Instead, it is more tractable to dissect the plant's response into traits that are hypothesized to be involved in the overall to...

2014
Lyuben Zagorchev Plamena Kamenova Mariela Odjakova

Contemporary agriculture is facing new challenges with the increasing population and demand for food on Earth and the decrease in crop productivity due to abiotic stresses such as water deficit, high salinity, and extreme fluctuations of temperatures. The knowledge of plant stress responses, though widely extended in recent years, is still unable to provide efficient strategies for improvement ...

Journal: :Scientia Horticulturae 2021

The salinity tolerance of plants can be improved by efficient irrigation management and salt flushing, which require a continuous precise knowledge the in soil or substrate. Soil sensors that measure electrical conductivity play an essential role monitoring salinity. However, correct interpretation measurements using depends on developing appropriate indexes. This work studied potential several...

Journal: :Land 2021

There is a lack of understanding the main drivers that form picture biological communities transitional waters in deltaic ecosystems under influence terrestrial sources. Analysis hydrochemical parameters relation to phytoplankton Ukrainian part Danube coastal zone (in August 2018) focus current work. The goal was identify patterns distribution environmental (salinity and nutrients) area shippin...

Journal: : 2022

The paper presents the research results of changes in age (for all ontogenetic groups) and sex structure, as well production cysts, two populations Artemia sp. living different contrasting environmental conditions (by area water body, its depth, salinity, nature bottom sediments, level anthropogenic load) hyperhaline bodies aquatic complex Lake Aktash. Data on dynamics size structure each or gr...

2013
S A Tabatabaei

Objective of this study was to evaluation Changes in proline, catalase and germination characteristics of barley seeds under salinity stress. Salinity stress at osmotic potentials of 0 (as control), 4, -8, -12 and -16 bar were adjusted using NaCl before the start of the experiment. Our results showed that, the effect of salinity levels for all traits was significantly. With, increases of salini...

Journal: :American journal of botany 2001
G Houle L Morel C Reynolds J Siégel

Salinity reduces substrate water potential, thereby restricting water and nutrient uptake by plants; salinity may also cause ionic imbalance and toxicity. Because substrate salinity fluctuates through the growing season, a plant may be exposed to different salinity levels, at various stages of development, with potentially significant consequences on population dynamics. Here, we present the re...

2015
Md Amirul Alam Abdul Shukor Juraimi M Y Rafii Azizah Abdul Hamid

13 selected purslane accessions were subjected to five salinity levels 0, 8, 16, 24, and 32 dS m(-1). Salinity effect was evaluated on the basis of biomass yield reduction, physiological attributes, and stem-root anatomical changes. Aggravated salinity stress caused significant (P < 0.05) reduction in all measured parameters and the highest salinity showed more detrimental effect compared to co...

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