Effect of Weak Sinusoidal Magnetic Field on Germination and Yield of Cotton (<i>Gossypium</i>spp.)

Leelapriya, T.; Dhilip, K. S.; Narayan, P. V. Sanker

doi:10.1081/jbc-120024621

Cited by 27 publications

(13 citation statements)

References 14 publications

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“…The considerable improvement of fruit yield per plant and per area resulted from an increase in mean fruit weight induced by magnetic treatments. Similar effects have been reported on flax, buckwheat, sunflower, pea, wheat, tomato, pepper, soybean, cotton, and strawberry yield parameters by Gubbels [1982]; Grabrielian [1996]; Patent RU [1997]; Phirke et al [1996Phirke et al [ , 1998]; Pietruszewski [1999]; Ogólnej et al [2002]; Vasilevski [2003]; Leelapriya et al [2003]; Esitken and Turan [2004].…”

Section: Magnetic Treatmentssupporting

confidence: 73%

Pre‐sowing magnetic treatments of tomato seeds increase the growth and yield of plants

Souza¹,

Garcí²,

Sueiro³

et al. 2006

Bioelectromagnetics

140

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The effects of pre-sowing magnetic treatments on growth and yield of tomato (cv Campbell-28) were investigated under field conditions. Tomato seeds were exposed to full-wave rectified sinusoidal non-uniform magnetic fields (MFs) induced by an electromagnet at 100 mT (rms) for 10 min and at 170 mT (rms) for 3 min. Non-treated seeds were considered as controls. Plants were grown in experimental plots (30.2 m(2)) and were cultivated according to standard agricultural practices. During the vegetative and generative growth stages, samples were collected at regular intervals for growth rate analyses, and the resistance of plants to geminivirus and early blight was evaluated. At physiological maturity, the plants were harvested from each plot and the yield and yield parameters were determined. In the vegetative stage, the treatments led to a significant increase in leaf area, leaf dry weight, and specific leaf area (SLA) per plant. Also, the leaf, stem, and root relative growth rates of plants derived from magnetically treated seeds were greater than those shown by the control plants. In the generative stage, leaf area per plant and relative growth rates of fruits from plants from magnetically exposed seeds were greater than those of the control plant fruits. At fruit maturity stage, all magnetic treatments increased significantly (P < .05) the mean fruit weight, the fruit yield per plant, the fruit yield per area, and the equatorial diameter of fruits in comparison with the controls. At the end of the experiment, total dry matter was significantly higher for plants from magnetically treated seeds than that of the controls. A significant delay in the appearance of first symptoms of geminivirus and early blight and a reduced infection rate of early blight were observed in the plants from exposed seeds to MFs. Pre-sowing magnetic treatments would enhance the growth and yield of tomato crop.

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Section: Magnetic Treatmentssupporting

confidence: 73%

Pre‐sowing magnetic treatments of tomato seeds increase the growth and yield of plants

Souza¹,

Garcí²,

Sueiro³

et al. 2006

Bioelectromagnetics

140

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“…The healthy uniform seeds were selected and each 100 g of seeds were spread on a plastic plate and kept at the geometric center of the coil assemblies and subjected to 1 Hz at 1.5 µT according to the method of Leelapriya et al [2003]. PMF treatment was for 5 h/day for 20 days, and control seeds were kept under similar conditions (local geomagnetic field only) but in the absence of the MF.…”

Section: Methodsmentioning

confidence: 99%

Effects of pulsed magnetic field treatment of soybean seeds on calli growth, cell damage, and biochemical changes under salt stress

Radhakrishnan

Leelapriya²,

Kumari

2012

Bioelectromagnetics

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The effects of magnetic field (MF) treatments of soybean seeds on calli growth, cell damage, and biochemical changes under salt stress were investigated under controlled conditions. Soybean seeds were exposed to a 1.0 Hz sinusoidal uniform pulsed magnetic field (PMF) of 1.5 µT for 5 h/day for 20 days. Non-treated seeds were considered as controls. For callus regeneration, the embryonic axis explants were taken from seeds and inoculated in a saline medium with a concentration of 10 mM NaCl for calli growth analysis and biochemical changes. The combined treatment of MF and salt stress was found to significantly increase calli fresh weight, total soluble sugar, total protein, and total phenol contents, but it decreased the ascorbic acid, lipid peroxidation, and catalase activity of calli from magnetically exposed seeds compared to the control calli. PMF treatment significantly improved calli tolerance to salt stress in terms of an increase in flavonoid, flavone, flavonole, alkaloid, saponin, total polyphenol, genistein, and daidzein contents under salt stress. The results suggest that PMF treatment of soybean seeds has the potential to counteract the adverse effects of salt stress on calli growth by improving primary and secondary metabolites under salt stress conditions.

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“…These results are closed to the results found by De Souza et al (2006) on tomato plants and Selim (2016) on cucumber plants. The enhancement in yield of wheat plants produced from magnetically treated water and/or seeds may be ascribed to the increment of protein, mineral accumulation, water uptake and enzyme activities which leads to increase the growth and yield (Radhakrishnan and Kumari 2012;Leelapriya et al 2003). Garcia-Reina and Fundora (2002) found a significance increase in the rate of water absorption accompanied with an increase in the total mass in lettuce seeds previously treated in stationary magnetic field.…”

Section: Yield Traitsmentioning

confidence: 99%

Physio-Biochemical Behaviour, Water Use Efficiency and Productivity of Wheat Plants Exposed to Magnetic Field

Selim

2019

Journal of Plant Production

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The aim of this study was to evaluate the capability of magnetized field in improving the growth, physiological and biochemical aspects and yield attributes of wheat crop (Triticum aestivum L. cv Giza 168) as one of the important economically strategic crops. Pot experiments were executed in a glass greenhouse belonged to the experimental farm, Faculty of Agriculture, Menoufia University, Shibin El-Kom, Egypt during two winter growing seasons 2015/2016 and 2016/2017. Magnetic treatments were magnetic grains, magnetic water and combined magnetic grains and water in addition to the control group. Vegetative growth of wheat plants was significantly increased by treating with different magnetic treatments compared to the control plants. Application of magnetic treatments caused significant increases in total leaf water content, relative water content, water use efficiency (WUE), membrane permeability and succulence degree, whereas the transpiration rate and leaf water deficit were significantly reduced. Most growth characteristics and WUE were more positively affected by the magnetized water treatment than other magnetic treatments. The concentrations of photosynthetic pigments and growth promoters (IAA, GA and Cytokinins) showed significant increases in the treated wheat plants with all magnetic treatments. A marked increase was observed in the uptake of N, P, K, Ca, Mg, Fe, Cu and Mn, but Na uptake was decreased in wheat plants by the application of magnetic field. Magnetic treatments caused a significant increase in the spike characters, grain and straw yield, and harvest index of wheat plants as well as some chemical constituents in grains compared with the control plants.

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Effect of Weak Sinusoidal Magnetic Field on Germination and Yield of Cotton (Gossypiumspp.)

Cited by 27 publications

References 14 publications

Pre‐sowing magnetic treatments of tomato seeds increase the growth and yield of plants

Pre‐sowing magnetic treatments of tomato seeds increase the growth and yield of plants

Effects of pulsed magnetic field treatment of soybean seeds on calli growth, cell damage, and biochemical changes under salt stress

Physio-Biochemical Behaviour, Water Use Efficiency and Productivity of Wheat Plants Exposed to Magnetic Field

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