Design, Fabrication and Evaluation of a Novel System for Magnetic Field Application to the Seeds- Case study of Onion Seed

ماشین های کشاورزی

Article 1, Volume 10, Issue 1 - Serial Number 19, 2020, Pages 1-10   

Document Type: Research Article-en

DOI: 10.22067/jam.v10i1.76370

Authors

S. Rezaei¹; M. Dowlati^{* 2}; R. Abbaszadeh³

¹Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, University of Jiroft, Jiroft, Iran

²Tuyserkan Faculty of Engineering and Natural Resources, Bu-Ali Sina University, Tuyserkan, Hamedan, Iran

³Agriculture Research Institute, Iranian Research Organization for Science and Technology (IROST), Ahmadabad Mostoufi, Tehran, Iran

Abstract

Non-chemical treatments are an approach for improving seed germination. In order to evaluate the effects of the magnetic field application on onion seed germination and seedling growth indices, a quadrupole magnetic field system was designed and fabricated. It was also compared with a dipole magnetic field system. In the quadrupole system, each coil consisted of three layers and the cores were moved inside the coils. These arrangements make it possible to change the magnetic field intensity in addition to input current setting. The experiments were conducted based on factors including the type of system (bipolar and quadrupole), magnetic flux density (75, 150, 300 and 600 μT) and duration of the field application (15, 30, 60 and 120 min). Germination percentage, germination rate, mean germination time, seedling vigor index, shoot length, root length, fresh weight of shoot and root, fresh weight of seedling, dry weight of shoot and root were measured. The results showed significant effects on seed germination and seedling growth of onion. In most germination characteristics, the quadrupole system had a better impact than the bipolar system. For many traits (except for weights), the increase in field intensity degraded the traits. Quadrupole system that applied the magnetic field of 600 μT for 15 minutes, yielded 63% increase in the total seedling weight. Most of the germination traits were not affected by exposure time. Further investigations are required for shorter exposure times compared to used durations in this study.

Keywords

Magnetic field; Quadrupole system; Onion; Seed germination and seedling growth

References

1. Aboutalebian, M. A., F. Sharifzadeh, M. R. Jahansouz, A. Ahmadi, and M. R. Naghavi. 2005. Effect of osmopriming treatments on speed of emergence, germination percentage, base temperature of germination and seedling vigour index of some wheat cultivars (Triticum aestivum L.). Agricultural Research Soil, Water and Plant 5 (1): 67-82.

2. Bhardwaj, J., A .Anand, and S. Nagarajan. 2012. Biochemical and biophysical changes associated with magnetopriming in germinating cucumber seeds, Plant Physiology and Biochemistry 57: 67-73.

3. Cakmak, T., R. Dumlupinar, and S. Erdal. 2010. Acceleration of germination and early growth of wheat and bean seedlings grown under various magnetic field and osmotic conditions. Bioelectromagnetics 31: 120-129.

4. Carbonell, M., E. Martinez, and R. M. Flores. 2005. Influencia de campos magneticos estacionarios de 125mT y 250 mT en la germinacion de semillas de girasol (in Spanish). Ingenieria de Recursos Naturales y del Ambiente 2 (3): 34-39.

5. De Souza, A., D. Garcia, L. Sueiro, and F. Gilart. 2014. Improvement of the seed germination, growth and yield of onion plants by extremely low frequency non-uniform magnetic fields, Scientia Horticulturae 176: 63-69.

6. Feyzollahzadeh, M., A. Nikbakht, and A. Modarres Motlagh. 2013. Investigation of the Effects of Irrigation and Nutrient Treatments on Biophysical and Biomechanical Properties of Safflower Seed. Journal of Agricultural Machinery 3 (1): 58-70. (In Farsi),

7. Fischer, G., M. Tausz, M. Kock, and D. Grill. 2004. Effects of weak 16 Hz magnetic fields on growth parameters of young sunflower and wheat seedlings. Bioelectromagnetics 25 (8): 638-641.

8. Hołubowicz, R., L. Kubisz, M. Gauza, Y. Tong, and D. Hojan-jezierska. 2014. Effect of Low Frequency Magnetic Field (LFMF) on the Germination of Seeds and Selected Useful Characters of Onion (Allium cepa L.). Notulae Botanicae Horti Agrobotanici Cluj-Napoca. 42 (1): 168-172.

9. Hoseyni, H., and P. Rezvani Moghadam. 2009. Effect of water and salinity stress in seed germination on Isabgol (Plantago ovata). Iranian Journal of Field Crops Research 4 (1): 15-22. (In Farsi).

10. Hozayn, M., A. Amal, A. EL-Mahdy, and H. M. H. Abdel-Rahman. 2015. Effect of magnetic field on germination, seedling growth and cytogenetic of onion (Allium cepa L.). African Journal of Agricultural Research 10 (8): 849-857.

11. Imanmehr, A. 2014. Effects of Drum Speed and Feed Rate on Damaged Wheat Grain during Threshing Operation. Journal of Agricultural Machinery 5 (1): 184-190. (In Farsi).

12. Maguire, J. D. 1962. Speed of germination-aid in selection and evaluation for seedling emergence and vigor. Crop Science 2 (2): 176-177.

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

14. Rajabbeigi, E., F. Ghanati, and P. Abdolmaleki. 2013. Physiologic responses of suspension-cultured parsley cells to static magnetic field. Iranian Journal of Plant Biology 5 (15): 59-68. (In Farsi).

15. Ranjbar, F., and M. Kianmehr. 2018. Review of some of Coating Seed Factors in Rotary Pan Coater. Journal of Agricultural Machinery 8 (1): 31-41. (In Farsi).

16. Vashisth, A., and D. K. Joshi. 2016. Growth characteristics of maize seeds exposed to magnetic field. Bioelectromagnetics. DOI: 10.1002/bem.2202.

17. Wang, P., and C. Chang. 2003. Detection of the low-germination-rate resting oospores of Pythium myriotylum from soil by PCR. Letters in Applied Microbiology 36 (3):157-161.

18. Zamiran, A., V. R. Saffari, and M. R. Maleki. 2013. Seed Germination Enhancement of Zinnia (Zinnia elegans) Using Electromagnetic Field. Journal of Ornamental Plants 3 (3): 203-214.

19. Zeidali, H., Z. Rostami, F. Darabi, H. Soheyli, Gh. Nabiyouni, and R. Naseri. 2017. Germination and Growth of Wheat and Wild Oat Seedling as Affected by Different Intensities and Times of Magnetic Fields. Biological, Environmental and Agricultural Sciences 2: 86-100.