Germination parameters and peroxidase activity of Lettuce seed under stationary magnetic field

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Research Paper 01/04/2013
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Germination parameters and peroxidase activity of Lettuce seed under stationary magnetic field

Seyyed Javad Mousavizadeh, Shahram Sedaghathoor, Abdolrahman Rahimi, Haydeh Mohammadi
Int. J. Biosci.3( 4), 199-207, April 2013.
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The magnetic fields influence the biological systems by several mechanisms. The magnetic field induces the translation and rotation movements of the electric charges. The effects of a stationary magnetic field on the germination and initial stages of growth of Lettuce seeds (Lactuca sativa var.longifolia) have been studied. The seeds were exposed to a magnetic field strength (125 and 250mT) for different time including 0, 1, 6, 12 and 24 hour. The results revealed a significant difference (P<0.01) of Lettuce seeds traits exposed to stationary magnetic field. By conducting the results, germination parameters in 0 and 24 h were underneath the 1, 6 and 12 h exposed to both 125 and 250mT of magnetic field. Germination rate at both 125 and 250mT were increased. Root length at 250mT was rapidly raised and then rapidly reduced than 125mT. Peroxidase activity rose with increasing to exposed magnetic field. The decline in peroxidase activity above 12 h is seen for 250mT. Maximum peroxidase activity at 125mT was recorded incubated 24 h exposed to 125mT magnetic field. Finally, magnetic treatment produces an increase in the germination and first stages of growth of lettuce. So, the magnetic field as nondestructive growth factors to accelerate germination and early growth of lettuce can be used.


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