نتایج جستجو برای: diverse salinity

تعداد نتایج: 184513  

2002
N. Rishe

Salinity in Florida Bay is closely related to water management in South Florida. Water management activities over the last century have disrupted the quantity, quality, timing and distribution of freshwater flows into Florida Bay affecting salinity conditions. The main goal of the project presented in this paper is to accumulate all the data available on salinity in Florida Bay into one databas...

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 ...

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: : 2021

Salinity largely determines the species diversity and structure of food web in lake ecosystems. Many studies have been focused on salinity tolerance various plankton species. There are fewer investigating modifications interactions under effect salinity. An appropriate system for such is closely located lakes different We took samples during summer stratification analyzed physicochemical biolog...

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...

2013
Amir Hossein Saeidnejad Mohammad Kafi

Salinity is an important constraining factor in the way of crop production around the world. Plant nutrition management could alleviate the harmful effects of salinity. In order to evaluate the interaction effects of Zinc availability and different levels of salinity, an experiment was conducted using four levels of zinc(0, 10, 20 and 40 mg/kg) and three levels of NaCl salinity of irrigation wa...

Journal: :Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology 2003
Stephen T Kinsey Bailey C Lee

The effect of acclimation salinity and salinity changes on the concentration of high-energy phosphate metabolites and arginine kinase (AK) flux was examined in vivo in juvenile blue crabs using 31P-nuclear magnetic resonance (NMR). Crabs were acclimated for 7 days to a salinity of 5 or 35 per thousand and then placed in a flow apparatus that could sustain the animals while NMR spectra were acqu...

2016
Jun Peng Lei Zhang Jingran Liu Junyu Luo Xinhua Zhao Helin Dong Yan Ma Ning Sui Zhiguo Zhou Yali Meng

Cotton (Gosspium hirsutum L.) is classified as a salt tolerant crop. However, its yield and fiber quality are negatively affected by soil salinity. Studies on the enzymatic differences in sucrose metabolism under different soil salinity levels are lacking. Therefore, field experiments, using two cotton cultivars, CCRI-79 (salt-tolerant) and Simian 3 (salt-sensitive), were conducted in 2013 and ...

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