The Effect of Liquids Activated by Plasma Generated with a Microwave Plasmatron and High-Frequency Glow Discharge on Cotton Plant Development

The Effect of Liquids Activated by Plasma Generated with a Microwave Plasmatron and High-Frequency Glow Discharge on Cotton Plant Development

In this study, we investigated the effect of plasma-activated liquids (PAL) on the cotton plant (<i>Gossypium hirsutum</i> L.) growth under laboratory and field conditions. We used two types of PAL: deionized water activated with plasma generated using a microwave plasmatron in atmospher...

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Main Authors: Sergey A. Shumeyko, Denis V. Yanykin, Mark O. Paskhin, Vladimir I. Lukanin, Dmitry A. Zakharov, Maxim E. Astashev, Roman Y. Pishchalnikov, Ruslan M. Sarimov, Mukhsindjan Kh. Ashurov, Erkindjan M. Ashurov, Dilbar K. Rashidova, Muzaffar M. Yakubov, Aleksei M. Davydov, Victoriya V. Gudkova, Yuri K. Danileyko, Alexey S. Dorokhov, Sergey V. Gudkov
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Plants
Subjects:
plasma-activated water
plasma discharge
plasmotron
cotton plant
KNO<sub>3</sub>
plant growth
Online Access:https://www.mdpi.com/2223-7747/14/3/304
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Summary:In this study, we investigated the effect of plasma-activated liquids (PAL) on the cotton plant (<i>Gossypium hirsutum</i> L.) growth under laboratory and field conditions. We used two types of PAL: deionized water activated with plasma generated using a microwave plasmatron in atmospheric-pressure air flow (PAW) and a 1.5% KNO<sub>3</sub> solution activated using plasma generated in an electrochemical cell (PAKNO<sub>3</sub>). These treatments differ in terms of their content of long-lived biologically active compounds. PAW contains a higher concentration of hydrogen peroxide (150 μM compared to 1.1 μM), while PAKNO<sub>3</sub> is more saturated with NO<sub>2</sub><sup>−</sup> and NO<sub>3</sub><sup>−</sup> (1510 μM compared to 300 µM). We found that PAW improved cotton plant growth under field conditions and in a laboratory drought stress. Additionally, PAW increased field emergence and germination of heat-treated cotton seeds in the laboratory. It was revealed that PAW prevents the drought-induced disruption of the partitioning of absorbed light energy in the photosynthetic apparatus. Meanwhile, PAKNO<sub>3</sub> has a positive effect on seed germination. The positive effect of PALs on cotton seeds and plants is thought to be due to the generation of long-lived biologically active oxygen and nitrogen species during plasma treatment of the liquid.
ISSN:2223-7747

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