The article presents studies on the impact of ultraviolet light-emitting diodes and silicon-containing preparation “Nanosilicon” on the germination of seeds of meadow clover ‘Ranny 2’, alfalfa (Medicago varia) ‘Victoria’ and fodder galega ‘Yaltinsky’. The purpose of the studies was to investigate the synergism of the simultaneous exposure to ultraviolet radiation and nanosilicon to increase the rate of seed germination. The study was investigating ultraviolet radiation zone “A” (UV-A) for a period of 5 minutes. The average irradiance was 3.137 W/m2. A decrease to 2-3% of the amount of hard seeds of meadow clover was noted in the variants: first treatment was with ultraviolet light, and then with “Nanosilicon” (UV irradiation + “Nanosilicon”) and vice versa: first, treatment was with “Nanosilicon”, and then with ultraviolet (“Nanosilicon” + UV irradiation). In addition, a decrease to 7.9-9.5% of the seeds contamination was detected for fodder galega in almost all studied variants. The use of the preparation “Nanosilicon” and UV radiation on the seeds of alfalfa contributed to an increase in the length of the sprout up to 2.4 cm, the root up to 1.5 cm, the degree of development of seedlings up to 3.0 points, the growth rate up to 29.8%.
The paper shows the synergistic effect of simultaneous exposure to ultraviolet radiation and electron-donor solution on the seed germination of grain crops. When the seed is moistened, the biochemical processes that control the growth of the root system and stem are activated in them. The purpose of the study is to determine the presence of a synergistic effect on seed germination of grain crops with simultaneous exposure to ultraviolet radiation and electron-donor solution. It was found out that the oxidation-reduction potential (ORP) is affected by the time of seed soaking, the weight of seeds and the type of grain crops. The best soaking time turned out to be 18 hours, the greatest negative ORP was in oat seeds -510 mV (100%), in barley and rye it was 487mV (95%), in wheat - 462 mV (91%). The greatest synergistic effect was obtained with a 10-minute exposure to UV irradiation of seeds at a dose of 1,882 ± 14.1 J/m2, followed by soaking in an electron-donor solution. In this case, the height of the sprouts was 108.8 mm (100%). At an exposure of 15 min (UV radiation dose 2.813 ±18.3 J/m2), the effect was slightly lower. The height of the sprouts was 107.6 mm (98.9%)
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