期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 24, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/ijms24054638
关键词
rollable dielectric barrier discharge (RDBD); omnidirectional and uniform treatment; plasma seed treatment; non-thermal atmospheric pressure plasma (NAP)
We investigated the characteristics of a rollable dielectric barrier discharge (RDBD) and evaluated its effects on seed germination rate and water uptake. The rotational and vibrational temperatures were measured to be 342 K and 2860 K, respectively. Chemical species analysis showed that O-3 production was dominant and NOx production was restrained at the given temperatures. Treatment of spinach seeds with RDBD for 5 minutes increased water uptake and germination rate by 10% and 15%, respectively, and reduced the standard error of germination by 4% compared to the controls. RDBD enables an important step forward in non-thermal atmospheric-pressure plasma agriculture for omnidirectional seed treatment.
We investigated the characteristics of a rollable dielectric barrier discharge (RDBD) and evaluate its effects on seed germination rate and water uptake. The RDBD source was composed of a polyimide substrate and copper electrode, and it was mounted in a rolled-up structure for omnidirectional and uniform treatment of seeds with flowing synthetic air gas. The rotational and vibrational temperatures were measured to be 342 K and 2860 K, respectively, using optical emission spectroscopy. The chemical species analysis via Fourier-transform infrared spectroscopy and 0D chemical simulation showed that O-3 production was dominant and NOx production was restrained at the given temperatures. The water uptake and germination rate of spinach seeds by 5 min treatment of RDBD was increased by 10% and 15%, respectively, and the standard error of germination was reduced by 4% in comparison with the controls. RDBD enables an important step forward in non-thermal atmospheric-pressure plasma agriculture for omnidirectional seed treatment.
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