Biomagnetic Priming—Possible Strategy to Revitalize Old Mustard Seeds

Abstract

Different priming methods were developed to improve seed germination and the early growth of seedlings. This study aimed to examine the combined effect of bacterial inoculation and static magnetic field on white mustard (Sinapis alba L.) germination. A plant growth-promoting bacterial strain Bacillus amyloliquefaciens D5 ARV was used for biopriming. The static magnetic field of 90 mT was applied for 5 and 15 min. Analyses of abscisic acid, chlorophyll, anthocyanins, flavonoids content, nitrogen balance index, and bacterial indole-3-acetic acid were used to explain observed effects. Bacterial inoculation improved seed germination, whereas exposure to 90 mT for 15 min suppressed germination. Such an unfavorable effect was neutralized when the treatment with the static magnetic field was combined with bacterial inoculation. The highest germination percentage was a result of synergistic action of B. amyloliquefaciens D5 ARV and 15 min long exposure to 90 mT, which induced an increase of 53.20% in the number of germinated seeds. The static magnetic field induced the increase of bacterial indole-3acetic acid production threefold times. Biomagnetic priming caused a metabolic shift from primary to secondary metabolism in the white mustard seedlings. An adequate combination of biological priming and static magnetic field treatment can be successfully used in old seed revitalization and germination improvements.

Magnetopriming enhance germination and seedling growth parameters of onion and lettuce seeds

“…Some studies were conducted evaluating the response of plants to MF at different intensities, including nearzero (0-40 nT), low (up to 40 mT), and very high values (up to 30 T) (Teixeira da Silva and Dobranszki, 2015). Results show that biochemical, molecular, cellular and various effects on the whole plant occur in many plant species (Sen and Alikamanoğlu, 2016;Podlesna et al, 2019;Mohammadi and Roshandel, 2020;Jovičić-Petrović et al, 2021;Vashisth et al, 2021).…”