Impact of Coherent Laser Irradiation on Germination and Mycoflora of Soybean Seeds—Innovative and Prospective Seed Quality Management
2020
Agnieszka Klimek-Kopyra | Joanna Dłużniewska | Anna Ślizowska | Jan Wincenty Dobrowolski
Laser irradiation is considered a new technology in agriculture; however, the success of irradiation depends on the selection of precise parameters for the light source and exposure. In this study, the impact of laser stimulation on germination and the occurrence of mycoflora in soybean seeds was assessed. The following factors were considered: (1) irradiation using blue and red coherent lights, (2) irradiation of seeds only (a), use of <i>Bradyrhzobium japonicum</i> vaccine only (b), and irradiation of the seeds plus the <i>Bradyrhzobium japonicum</i> vaccine (c). The germination index, seedling weight and seeds infected by fungus were determined. It was found that the laser treatment of seeds increased germination and seedling weight. Laser irradiation affected the abundance of species <i>Phoma glomerata</i>, <i>Botrytis cinerea</i>, <i>Rhizopus nigricans</i> and <i>Gliocladium roseum.</i> The use of blue laser (LB—514 nm) reduced the number of the non-pathogenic species, <i>R. nigricans</i> and <i>G. roseum</i>.
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