scholarly journals Magnetic Field Stimulation Effect on Germination and Antioxidant Activities of Presown Hybrid Seeds of Sunflower and Its Seedlings

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Shazia Anwer Bukhari ◽  
Muhammad Tanveer ◽  
Ghulam Mustafa ◽  
Nighat Zia-Ud-Den
Keyword(s):  
Magnetic Field ◽  
Conformational Changes ◽  
Antioxidant Activities ◽  
Growth Parameters ◽  
Magnetic Field Effect ◽  
Magnetic Treatment ◽  
Control Group ◽  
Sunflower Seeds ◽  
Yield Attributes ◽  
Root And Shoot Length

Magnetic field biostimulation plays a significant role in enhancing the germination of seeds and increasing the metabolic rate. The low magnetic field effect for long exposure time and its effect on antioxidant profiling have not been studied. Therefore, in the recent findings, the static magnetic field’s impact on sunflower seeds subjected to the magnetic field at varying intensity (millitesla) for different exposure times was examined. The effectiveness of magnetic biostimulation on presown sunflower seeds, growth parameters of seedlings (biomass, root and shoot length, fresh and dry weight of roots, shoots, leaf, and height of plants), and antioxidant activities were also studied. It has been revealed that magnetic treatment at 50 mT/45 min greatly influenced the growth parameters, including mean germination growth (100 ± 0.02) and final emergence rate. Concerning the antioxidant parameters, seed variety FH620 at 500 µg/µL concentration showed significant results compared to other varieties. FTIR was employed to determine the conformational changes and functional groups of organic compounds from sunflower seedlings. Tocopherol analysis by HPLC showed that magnetic treatment at 50 mT/45 min had a higher concentration of vitamin E compared to the control group. These modifications indicated that magnetic field induction enhanced seeds’ inner energy that led to seedlings’ growth and development enhancement. Besides, magnetic field pretreatment has been shown to have a beneficial influence on sunflower seeds and their bioactive compounds. Future studies should be focused on growth characteristics at the field level and yield attributes.

scholarly journals The influence of the magnetoplasma install on growth parameters of sunflower Helianthus annuus L

2019 ◽  
Vol 58 (4) ◽  
pp. 72-76
Author(s):  
Daria V. Sergeeva ◽  
◽  
Pyotr P. Purygin ◽  
Keyword(s):  
Magnetic Field ◽  
Growth Parameters ◽  
Petroleum Products ◽  
Growth Delay ◽  
Sunflower Seeds ◽  
Gradient Magnetic Field ◽  
Daily Growth ◽  
Growth Energy ◽  
The Impact ◽  
Magnetic Plasma

The study assessed the impact of magnetic plasma installation YMPO-2 on sunflower seeds treated with petroleum products of different concentrations (0.5%, 0.9%, 2.9%, 4.7%). The plant generates a gradient magnetic field with variable induction from 50 to 300 GS and is equipped with a powerful source of UV radiation with a wave range of 248-340 nm, which has a strong bactericidal effect, and the magnetic field is able to activate vital processes in seeds. The analyzed parameters of sunflower: seed germination (total and daily), growth energy and length of seedlings. The positive effect of the gradient magnetic field, ultraviolet radiation and ozone, created by a powerful magnetic inductor, was revealed due to the observation of sunflower growth parameters for 30 days. Under the influence of UMPO-2 increases the permeability of cell membranes, resulting in changes in the concentration of substances in plant cells, increases the rate of chemical reactions and increases water absorption of seeds. According to the results of the experiment, the stimulating effect of the magnetoplasmic installation on germination, growth energy and length of seedlings was noted not only on healthy sunflower seeds, but also on seeds treated with petroleum products in four different concentrations (0.5%, 0.9%, 2.9%, 4.7% kerosene). When germinating seeds with the addition of kerosene to the substrate, the deterioration of agrochemical properties of the soil was noted, as a result, the growth of stems and other vegetative organs of sunflower was delayed. However, the seeds with added oil, treated with magnetic plasma installation UMPO-2, germinated together, the growth delay was noted slight. Also, after the impact of UMPO-2 on seeds not treated with petroleum products, positive dynamics of growth within 30 days, maximum germination and germination energy were revealed.

scholarly journals Practice of using the magnetic treatment devices to intensify the processes of primary oil treating

2020 ◽  
Vol 245 ◽  
pp. 554-560
Author(s):  
Ivan Golubev ◽  
Andrei Golubev ◽  
Аnatolii Laptev
Keyword(s):  
Magnetic Field ◽  
Oil And Gas ◽  
Water Discharge ◽  
Fluid Pressure ◽  
Magnetic Field Effect ◽  
Magnetic Treatment ◽  
Gas Field ◽  
Field Equipment ◽  
Inner Surface ◽  
The Magnetic Field

During the primary treatment of oil, gas and water, complications arise associated with the presence of hard water-oil emulsions, which cause an increase in fluid pressure in the gathering systems, pipeline damage, as well as difficulties in gas separation and preliminary water discharge at the preliminary discharge unit (PRU). Additional problems arise during transportation of highly paraffinic oils associated with the crystallization of paraffin in the flow path of the oilfield equipment and on the inner surface of pipes, leading to a drop in the productivity of pipelines.  Article discusses the technology of magnetic-reagent treatment of water-oil media, which allows intensifying the processes of primary oil treatment at the facilities of its production. Bench and pilot tests have shown the ability of the magnetic field to accelerate oil demulsification processes, increasing the percentage of separated water during subsequent settling, and to reduce asphalt-resin-paraffin deposits (ARPD) on the inner surface of oil and gas field equipment. Mechanism of the magnetic field effect on water-oil media is described. Effect of treatment on the integrity of the armour shells of oil-water emulsions was studied. Various modes of magnetic treatment have been investigated with evaluation of its effectiveness. It is shown that the best effect is achieved with the combined use of reagents and a magnetic field. Synergistic effect is observed, which consists in increasing their effectiveness. This made it possible to conclude that this method can be applied to reduce the consumption of reagents used in oil production while maintaining the treatment efficiency.

scholarly journals Evaluation of two wild castor (Ricinus communis L.) accessions for cadmium tolerance in relation to antioxidant systems and lipid peroxidation

2021 ◽  
Author(s):  
Akwasi Yeboah ◽  
Jiannong Lu ◽  
Shuailei Gu ◽  
Haiyan Liu ◽  
Yuzhen Shi ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Activities ◽  
Growth Parameters ◽  
Ricinus Communis ◽  
Dry Weight ◽  
Antioxidant Systems ◽  
Control Group ◽  
Tolerance Index ◽  
Cd Stress ◽  
Mda Content

AbstractThe present study was conducted to assess the effect of toxicity of cadmium (Cd) on growth, tolerance index (TI), antioxidant activities, and malondialdehyde (MDA) content in two contrasting wild castor accessions (16-024 and S2-4) via hydroponic experiment (0 and 100 mg/L Cd). The results showed that Cd significantly reduced the growth rate, seedling height, root length, and shoot length of the castor accessions compared to the control, with the Cd effect being more severe in S2-4 than in 16-024. In addition, biomass response including the root and shoot fresh weight and root dry weight decreased in both accessions compared to the control. Compared to the control group, the shoot dry weight of accession S2-4 declined by 21.7%, whereas there was no change in 16-024, suggesting a level of tolerance in 16-024. Analysis of TI on all the growth parameters and biomass content revealed that accession 16-024 was highly tolerant to Cd stress than S2-4. The results further revealed that the expression of the antioxidant enzymes, viz., superoxide dismutase (SOD), catalase (CAT), non-enzymatic antioxidant, glutathione, and MDA content, was influenced by genotype. S2-4 exhibited a higher antioxidant activity (SOD, CAT) and lipid peroxidation activity than 16-024, indicative of oxidative damage from Cd stress.

scholarly journals Effects of magnetized water application on soil and maize growth indices under different amounts of salt in the water

2016 ◽  
Vol 7 (3) ◽  
pp. 319-325 ◽  
Author(s):  
Meysam Abedinpour ◽  
Ebrahim Rohani
Keyword(s):  
Magnetic Field ◽  
Irrigation Water ◽  
Growth Parameters ◽  
Saline Water ◽  
Magnetic Treatment ◽  
Water Levels ◽  
Available N ◽  
Maize Growth ◽  
Salinity Levels ◽  
The Impact

Application of low quality water for irrigation is compulsive in facing water scarcity. Use of a magnetic field is an approach to overcome this challenge. This study examined the impact of magnetic field technology on improving germination under water of different salinity levels. An experiment was conducted to determine the effects of saline water levels, i.e. (S1):0.5, (S2):2, (S3):4 and (S4):6 dS/m combined with magnetized technology (with or without) on maize growth. Thus, magnetic treatment was applied by passing the irrigation water through a 1,500 mT magnetic field at 3 litres per minute (lpm) flow rate. Some emergence indices, such as emergence index, emergence rate index (ERI) and mean emergence time, were used to evaluate the germination of maize seed. As for soil properties after plant harvest, the use of magnetically treated irrigation water reduced soil pH but increased soil electrical conductivity and available N and P. ERI increased from 7.6 to 10.2, 9.1 to 11.1, 10.3 to 13.3, and 11.8 to 13.3 when applying the magnetized field for S1, S2, S3 and S4, respectively. Overall, the growth parameters of maize were improved by using magnetic technology with saline water, while the opposite trend was shown for increasing salinity without magnetic treatment.

The Model for Calculation the Hall Effect Parameter

2004 ◽  
Vol 9 (2) ◽  
pp. 129-138
Author(s):  
J. Kleiza ◽  
V. Kleiza
Keyword(s):  
Magnetic Field ◽  
Field Effect ◽  
Magnetic Field Effect ◽  
Mapping Method ◽  
Sample Thickness ◽  
System Of Nonlinear Equations ◽  
Specific Resistivity ◽  
Conformal Mapping Method ◽  
Effect Parameter ◽  
The Magnetic Field

A method for calculating the values of specific resistivity ρ as well as the product µHB of the Hall mobility and magnetic induction on a conductive sample of an arbitrary geometric configuration with two arbitrary fitted current electrodes of nonzero length and has been proposed an grounded. During the experiment, under the constant value U of voltage and in the absence of the magnetic field effect (B = 0) on the sample, the current intensities I(0), IE(0) are measured as well as the mentioned parameters under the effect of magnetic fields B1, B2 (B1 ≠ B2), i.e.: IE(β(i)), I(β(i)), i = 1, 2. It has been proved that under the constant difference of potentials U and sample thickness d, the parameters I(0), IE(0) and IE(β(i)), I(β(i)), i = 1, 2 uniquely determines the values of the product µHB and specific resistivity ρ of the sample. Basing on the conformal mapping method and Hall’s tensor properties, a relation (a system of nonlinear equations) between the above mentioned quantities has been found.

Arthrophytum scoparium Extract Improves Memory Impairment and Affects Acetylcholinesterase Activity In Mice Brain

2020 ◽  
Vol 21 (6) ◽  
pp. 480-487
Author(s):  
Med A. Smach ◽  
Jawhar Hafsa ◽  
Bassem Charfeddine ◽  
Hedi Dridi ◽  
Khalifa Limem ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Saline Water ◽  
Experimental Studies ◽  
Chronic Administration ◽  
Acetylcholinesterase Activity ◽  
Control Group ◽  
Pharmacological Activities ◽  
Oxidative Damages ◽  
Y Maze ◽  
Mice Brain

Background: Arthrophytum scoparium (Pomel) Iljin (Amaranthaceae family) has been widely used in traditional Tunisian medicine to treat many disorders such as migraine, headache, and neurological disorders. This study investigates the effect of Arthrophytum scoparium Aqueous Extract (ASAE) on cognitive impairments and oxidative injury induced by galactose (10%) in a mouse model. Materials and Methods: The mice were divided randomly into 4 experimental groups, including the control group (saline water 9 ‰), Galactose group, Scop group (300 mg/kg/d), and Scop+Gal group (300 mg/kg/d). Mice received the corresponding solutions by intraperitoneal injection (i.p.) for 7 days before the Y-maze active tests. Galactose 10% was given to all groups except control and Scop groups, 30 min before the trial. Levels of Acetylcholinesterase Activity (AChE), Ascorbic Acid (AA), Gluthatione (GSH) and Malondialdehyde (MDA) in mice brains were examined. Results: Chronic administration of galactose significantly impaired cognitive performance in Y maze, caused marked oxidative damages and a significant increase in the acetylcholinesterase activity as compared to other groups. On the contrary, ASAE (300 mg/kg) treatment suppressed galactoseinduced oxidative damage by ameliorating the increased levels of GSH and AA. Moreover, ASAE treatment reduced brain AChE activities in the galactose-induced model. Conclusion: These findings suggest that ASAE exerts potent anti-amnesic effects via the modulation of cholinergic and antioxidant activities. The observed pharmacological activities should be further evaluated by detailed experimental studies and validated by clinical trials.

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