Mobile phone radiation inhibits Vigna radiata (mung bean) root growth by inducing oxidative stress.

A b s t r a c t. The effect of magnetic field on germination and yields of spring wheat is presented. In the performed experiment two magnetic doses: D11=D13= 12.9 and D21=D23=17.9 kJ m -3 s were applied. The germination kinetic and yield of wheat depended on both magnetic field exposure doses. In both cases the better germination of seeds as compared to control seeds was observed. The yield of wheat for the exposure doses D11=D13 was 12.5% higher and for doses D21=D23 was 14.5% higher than obtained for the control. K e y w o r d s: magnetic field, wheat, pre-sowing treatment, germination, yield

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Effect of magnetic field on germination and yield of wheat.

Impact of a static magnetic field on the electricity production of Shewanella-inoculated microbial fuel cells

A b s t r a c t. The effect of magnetic field on the growth and yield of crop plants is presented based on 80 references on the studies of many authors. The introduction gives an outline of the history of the effect of magnetic field on biological organisms including plants since the second half of the 19th century. Then the role of static and alternating magnetic fields is discussed in relation to seed germination, root and stem growth, yield, protein and chlorophyll content, rhizosphere community. K e y w o r d s: magnetic field, crop plants, magnetic presowing treatment

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Magnetic field as a method of improving the quality of sowing material: a review

In this study, various magnetic field intensities between 2.9 to 4.8 mT by 1ms-1speed applied to mature embryos of Flamura-85 wheat variety and effects of magnetic field on different physiological (regeneration rate, average plant fresh weights, and average plant lengths) and biochemical [total protein, and chlorophyll amounts, superoxide dismutase (SOD), catalase (CAT), peroxidase (POX) and ascorbate peroxidase (APX) enzyme activities] parameters were investigated. Compared to the control group, an increase was detected on physiological parameters of 2.2 and 19.8 s magnetic field applied Flamura-85 wheat variety. Total protein and chlorophyll amounts, SOD, CAT, POX and APX enzyme activities of 2.2 and 19.8 s magnetic field applied experimental groups presented increase compared to the control, depending on applied magnetic field intensity.

	 

	Key words: Antioxidant enzymes, chlorophyll amount, growth parameters, magnetic field, plant tissue culture, protein amount, wheat.

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Stimulation of growth and some biochemical parameters by magnetic field in wheat (Triticum aestivum L.) tissue cultures

The paper presents the impact of magnetic fields on enzyme activities in plants. Three species of wheat with different ploidy levels were used in the experiments: Triticum monococum (diploid), T. dicocum (tetraploid), and T. aestivum (hexaploid). Air-dry seed samples, made up of 100 seeds each, were treated with an alternating magnetic field of low frequency (16 Hz) for 2 h. The control samples were not tested with the magnetic field. After the 13th day of magnetic field treatment, measurements were conducted on the following enzymes: - and -amylase and glutathione S-transferase. The magnetic field caused a reduction in the activity of alpha- and beta amylases. This can be really important in breeding and seed production and in certain sections of the agricultural and food industry. Plants grown from treated seeds will be more resistant to sprouting in the future. The magnetic field caused a higher activity in the glutathione S-transferase enzyme. It caused that the plants have a higher resistan- ce to pathogen attack, oxidative stress, and heavy-metal toxicity.

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K. Grabowska

Papers

Influence of magnetic fields on the activity of enzymes: alpha- and beta-amylase and glutathione S-transferase [GST] in wheat plants