Effect of Magnetic Field on Growth and Development Parameters of Rudbeckia hirta L. Seed in Dry and Humid Conditions

Document Type: Original Article


Department of Horticultural Science, Rasht Branch, Islamic Azad University, Rasht, Iran


The magnetic field (MF) is considered as a biophysical treatment to change the growth and development parameters. Current research was carried out to evaluate the effect of different intensities of MF (0, 45, 60, 70 and 75 mT) on seed germination and some morphologic and physiologic parameters of Rudbeckia hirta L. in dry and humid conditions for 30 min. Results showed that the MF treatment increased germination percentage of dry seeds more than humid seeds and control. The intensity of 70 mT induced the maximum content of germination of dry seeds (94.5%). The MF decreased the seeds germination rate in both dry and humid conditions, as the control seeds showed the highest germination rate (3.5 days). Investigation of all morphologic traits like plantlet length and vigor index and physiologic (humid and dry weights of plantlet) revealed that the MF caused more induction of growth in these traits than the control. Totally, the use of 70 mT MF on dry seeds for optimum growth and development in Rudbeckia hirta L. is recommended.

Graphical Abstract

Effect of Magnetic Field on Growth and Development Parameters of  Rudbeckia hirta L. Seed in Dry and Humid Conditions


  • The changes of morphological and biological on Rudbeckia hirta L. were observed by magnetic field.
  • Magnetic field treatment is safe and without injury to the natural resources.


Aksenov, S.I., Grunina, T.I. and Goriachev, S.N. 2001. Characteristics of low frequency magnetic field effect on swelling of wheat seeds at various stages. Biofizika, 46: 1127-1132.

Aladjadjiyan, A. 2007. The use of physical methods for plant growing stimulation in Bulgaria. Journal of Central European Agriculture, 8: 369-380.

Aladjadjiyan, A. 2010. Influence of stationary magnetic field on lentil seeds. International Agrophysics, 24: 321-324.

Aladjadjiyan, A. and Ylieva, T. 2003. Influence of stationary magnetic field on the early stages of the development of tobacco seeds (Nicotiana tabacum L.). Journal of Central European Agriculture, 4: 131-138.

Alexander, M.P. and Doijode, S.D. 1995. Electromagnetic field: A novel tool to increase germination and seedling vigor of conserved onion (Allium cepa L.) and rice (Oryza sativa L.) seeds with low viability. Plant Genetic Resource Newsletter, 104: 1-5.

Bilalis, D., Katsenios, N., Efthimiadou, A., Karkanis, A., Khah, E.M. and Mitsis, T. 2013. Magnetic field pre-sowing treatment as an organic friendly technique to promote plant growth and chemical elements accumulation in early stages of cotton. Australian Journal of Crop Science, 7 (1): 46-50.

Cakmak, T., Dumlupinar, R. and Erdal, S. 2010. Acceleration of germination and early growth of wheat and bean seedlings grown under various magnetic field and osmotic conditions. Bioelectromagnetics, 30: 1-10.

Carbonell, M.V., Martinez, E. and Amaya, J.M. 2000. Stimulation of germination of rice (Oryza sativa L.) by a static magnetic field. Electro Magneto Biology, 19: 121-128.

Celik, O., Atak, C. and Rzakulieva, A. 2008. Stimulation of rapid regeneration by a magnetic field in Paulownia node cultures. Journal of Central European Agriculture, 9: 297-304.

De Souza, A., Garcí, D., Sueiro, L., Gilart, F., Porras, E. and Licea, L. 2006. Pre-sowing magnetic treatments of tomato seeds increase the growth and yield of plants. Bioelectromagnetics, 27: 247-257.

De Souza, A., Sueiro, L., García, D. and Porras, E. 2010. Extremely low frequency non-uniform magnetic fields improve tomato seed germination and early seedling growth. Seed Science and Technology,38: 61-72.

De Souza, A., Sueiro, L., Gonzalez, L.M., Licea, L., Porras, E. and Gilart, F. 2008. Improvement of the growth and yield of lettuce plants by non-uniform magnetic fields. Electromagnetic Biology and Medicine,27: 173-184.

Dhawi, F. and Al-Khayri, J.M. 2009. Magnetic fields induce changes in photosynthetic pigments content in date palm (Phoenix dactylifera L.) seedlings. The Open Agriculture Journal, 3: 1-5.

Dhawi, F., Al-Khayri, J.M. and Hassan, E. 2009. Static magnetic field influence on elements composition in date palm (Phoenix dactylifera L.). Research Journal of Agriculture and Biological Sciences, 5: 161-166.

Esitken, A. 2003. Effect of magnetic fields on yield and growth in strawberry ‘‘Camarosa’’. Journal of Horticultural Science and Biotechnology, 78 (2): 145–147.

Esitken, A. and Turan, M. 2004. Alternating magnetic field effects on yield and plant nutrient element composition of strawberry (Fragaria x ananassa cv. Camarosa). Acta Agriculturae Scandinavica, Section B-Soil and Plant Science, 54 (3): 135-139.

Fischer, G., Tausz, M., Ko¨ck, M., Grill, D. 2004. Effects of weak 16 Hz magnetic fields on growth parameters of young sunflower and wheat seedlings. Bioelectromagnetics, 25: 638-641.

Florez, M., Carbonell, M.V. and Martinez, E. 2007. Exposure of maize seeds to stationary magnetic fields: Effects on germination and early growth. Environment Experimental Botany, 59: 68-75.

Garcia, R.F. and Arza, P.L. 2001. Influence of a stationary magnetic field on water relations in lettuce seeds. Part I: Theoretical considerations. Bioelectromagnetics, 22: 589-595.

Garcia, M.F., Ramirez, E.M. and Padrino, M.V.C. 2008. Germination of grass seeds subjected to

stationary magnetic field. International Agrophysics, 10 (1): 51-55.

Kalinin, L. and Boshkova, I. 2003. Complex systems biophysics-physical model of the response of the plant tissue to a microwave electromagnetic field. Biophysics, 48: 111-113.

Kargarshooraki, E. and Majd, A. 2016. The comparative study of the electromagnetic fields’ effects on seed germination, growth and development indicators of Nigella sativa L. seeds. Journal of Plant Research, 29 (4): 867-873 (In Persian).

Kordas, L. 2002. The effect of magnetic field on growth, development and the yield of spring wheat. Polish Journal of Environmental Studies, 11: 527-530.

Mahdavi, B., Modarres Sanavy, A.M. and Bolouchi, H. 2008. Effect of electromagnetic field on seed germination and seedling growth of annual medics, barley, dodder and barnyard grass. Journal of Iranian Biology, 21: 433-443 (In Persian).

Majd, A., Bahar, M. and Abdi, S. 2009. Evaluation of the effect of AC and DC magnetic fields on seeds germination and primary growth of Brassica napus L. seedlings. Developmental Biology, 1 (1): 1-7.  

Marinkovic, B., Grujic, M., Marinkovic, D., Crnobarac, J., Marinkovic, J., Jacimovic, G. and Mircov, D.V. 2008. Use of biophysical methods to improve yields and quality of agricultural productions. Journal of Agricultural Sciences, 53 (3): 235-242.

Martinez, E., Carbonell, M.V. and Amaya, J.M. 2000. Astatic magnetic field of 125 mT stimulates the initial growth stages of barley (Hordeum vulgare L.). Electro Magneto Biology, 19: 271-277.

Martinez, E., Carbonell, M.V., Amaya J.M. and Maqueda, R. 2009. Germination of tomato seeds (Lycopersicon esculentum L.) under magnetic field. International Agrophysics, 23: 45-49.

Martinez, E., Carbonell, M.V. and Florez, M. 2002. Magnetic biostimulation of initial growth stages of wheat (Triticum aestivum L.). Electro Magnetobiology Medicine, 21: 43-53.

Naz, A., Jamil, Y., Ul Haq, Z., Iqbal, M., Ahmad, M.R., Ashraf, M.I. and Ahmad, R. 2012. Enhancement in germination, growth and yield of okra (Abelmoschus esculentus) using presowing magnetic treatment of seeds. Indian Journal of Biochemistry and Biophysics, 49: 211-214.

Peñuelas, J., Llusià, J., Martínez, B. and Fontcuberta, J. 2004. Diamagnetic susceptibility and root growth responses to magnetic fields in Lens culinaris, Glycine soja and Triticum aestivum. Electromagnet Biology and Medicine, 23: 97-112.

Phirke, P.S., Patil, M.N., Umbarkar, S.P. and Dudhe, Y.H. 1996a. The application of magnetic treatment to seeds: Methods and responses. Seed Science and Technology, 24: 365-373.

Pietruszewski, S. and Kania, K. 2010. Effect of magnetic field on germination and yield of wheat. International Agrophysics, 24: 297-302.

Podlesny, J., Pietruszewski, S. and Podelsna, A. 2004. Efficiency of the magnetic treatment of broad bean seeds cultivated under experimental plot conditions. International Agrophysics, 18: 65-71.

Podlesny, J., Pietruszewski, S. and Podlesna, A. 2005. Influence of magnetic stimulation of seeds on the formation of morphological features and yielding of the pea. International Agrophysics, 19: 1-8.

Racuciu, M., Creanga, D.E. and Amoraritei, C. 2008. Biochemical changes induced by low frequency magnetic field exposure of vegetal organisms. Romanian Journal of Physics, 52: 601-606.

Rakosy-Tican, E., Aurori, C.M. and Morariu, V.V. 2005. Influence of near null magnetic field on in vitro growth of potato and wild Solanum species. Bioelectromagnetics, 26 (7): 548-557.

Rochalska, M. and Orzeszko-Rywka, A. 2005. Magnetic field treatment improves seed performance. Seed Science and Technology, 33: 669-674.

Ruzic, R. and Jerman, I. 2002. Weak magnetic field decreases heat stress in cress seedlings. Electromagnetic Biology and Medicine, 21: 43-53.

Selim, A.F.H. and El-Nady, M. 2011. Physioanatomical responses of drought stressed tomato plants to magnetic field. Acta Astronautica, 69: 387-396.

Stange, B.C., Rowland, R.E., Rapley, B.I. and Podd, J.V. 2002. ELF magnetic fields increase amino acid uptake into Vicia faba L. roots and alter ion movement across the plasma membrane. Bioelectromagnetics, 23: 347-354.

Vashisth, A. and Nagarajan, S. 2010. Effect on germination and early growth characteristics in sunflower (Helianthus annuus) seeds exposed to static magnetic field. Journal of Plant Physiology, 167: 149-156.

Vasilevski, G. 2003. Perspectives of the application of biophysical methods in sustainable agriculture. Bulgarian Journal of Plant Physiology (Special Issue), 179-186.

Wadas, R.S. 1991. Biomagnetism physics and its applications. Ellis Horwood Ltd, New York.

Yinan, Y., Yuan, L., Yongqing, Y. and Chunyang, L. 2005. Effect of seed pretreatment by magnetic field on the sensitivity of cucumber (Cucumis sativus) seedlings to ultraviolet-B radiation. Environment and Experiment Botany, 54: 286-294.