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Study of effect of AC and DC magnetic fields on growth of Pisum sativum seeds

Published online by Cambridge University Press:  27 August 2013

Mahmood Bahar ,
Yasaman Yasaie Mehrjardi ,
Jaleh Sojoodi ,
Hosien Bayani  and
Mohammad Kazem Salem
Mahmood Bahar*
Affiliation:
Faculty of Engineering, Islamic Azad University, Garmsar Branch, Iran
Yasaman Yasaie Mehrjardi
Affiliation:
Faculty of Plasma Physics, Islamic Azad University, Sciences and Research Campus, Tehran, Iran
Jaleh Sojoodi
Affiliation:
Faculty of Plasma Physics, Islamic Azad University, Sciences and Research Campus, Tehran, Iran
Hosien Bayani
Affiliation:
Faculty of Physics, Khajeh Nasir University, Tehran, Iran
Mohammad Kazem Salem
Affiliation:
Faculty of Plasma Physics, Islamic Azad University, Sciences and Research Campus, Tehran, Iran
*
a e-mail: mahmoodbahar@yahoo.com
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Abstract

This paper concentrates on the effect of the AC and DC magnetic fields on plant growth. The effect of AC magnetic field with intensities of 2.25, 1.66 and 1.49 mT and DC magnetic field with intensities of 3.6, 2.41 and 2.05 mT in exposure durations of 2, 4, 6, 8, 10 and 12 min on two groups of dry and wet Pisum sativum seedlings was studied. In each experiment 10 seeds were used; the experiments were repeated three times for each group and there was a sham exposed group for comparison purposes. The light cycle was 12 h light/12 h darkness and the temperature was 25 ± 1° C. The index of growth is considered to be the root and stem elongation on the sixth day. It was observed that AC magnetic field has a positive effect on the growth in all durations and intensities. Moreover, it is highlighted that during the experiments, the mean growth of dry seedlings significantly increased by a factor of 11 in AC magnetic field with the lowest intensity of 1.49 mT (p < 0.05). It was also shown that AC magnetic fields had a more positive effect on the growth of plants in comparison to DC magnetic fields.

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 63 , Issue 2 , August 2013 , 21201
Copyright
© EDP Sciences, 2013

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