The Physiological and Biochemical Response of Field Bean (Vicia faba L. (partim)) to Electromagnetic Field Exposure Is Influenced by Seed Age, Light Conditions, and Growth Media
2022
Pawełek, Agnieszka | Wyszkowska, Joanna | Cecchetti, Daniele | Dinka, Mergi Daba | Przybylski, Krzysztof | Szmidt-Jaworska, Adriana
Research interest into the exposure of plants to magnetic fields (MF), including electromagnetic fields (EMF), has increased recently but results often vary depending on factors such as plant species and treatment dose. In this study, we exposed young (one year) and old (four years) field bean (Vicia faba L. (partim)) seeds to EMF (50 Hz, 7 mT) and observed seed germination and seedling growth under different conditions (growth media and light). The results indicated a stimulation by EMF of germination and early root growth of Petri dish-sown old seeds in continuous darkness and inhibition of germination of the pot-sown young seeds under long-day conditions. Root growth of two-week-old seedlings from pot-sown young seeds was stimulated by EMF treatment while their stem growth was inhibited. Some selected biochemical traits were examined, showing specific changes in membrane integrity, amylase activity, H₂O₂ levels, photosynthetic pigments, and content of the main groups of phytohormones, depending on seed age. The results indicate that priming of field bean seeds with EMF (50 Hz, 7 mT) could be a eustress factor that influences germination, early growth, and cellular activities and could positively influence the ability of field bean plants to grow and develop in more stressful conditions at later stages.
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