Effect of Ar and Ar–CO2 Plasma on Rice Seeds (Oryza
sativa L.) Packed in a Dielectric Barrier Discharge
Reactor

Faculty	Engineering	Year:	2025
Type of Publication:	ZU Hosted	Pages:
Authors:	Staff Zu Site Abstract In Staff Site
Journal:	Plasma Process and Polymers Plasma Process and Polymers	Volume:

Keywords :	Effect , , , Ar–CO2 Plasma , Rice Seeds (Oryza sativa
Abstract:	A dielectric barrier discharge reactor packed with rice seeds (Oryza sativa L.) was operated with an Ar–CO₂ gas mixture to investigate the effects of CO₂ conversion to CO on the properties of rice seeds. The Ar discharge enhanced seed germination, seedling growth, physiological parameters, and antioxidant enzyme activities. Introducing of 20% CO₂ into Ar discharge resulted in the efficient production of CO, which further enhanced seed germination, mitigated abiotic stress, and inactivated bacterial pathogens. Short plasma exposure times (≤ 3 min) stimulated seed growth, while prolonged exposure (> 3 min) inhibited it. The use of an Ar–CO₂ plasma has been found to expedite seed responses, reaching their maximum at 2 min, compared to 3 min with Ar plasma treatment alone.

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