Improvement of growth rate of plants by bubble discharge in water

Takahata, Junichiro; Takaki, Koichi; Satta, Naoya; Takahashi, Katsuyuki; Fujio, Takuya; Sasaki, Y.

doi:10.7567/jjap.54.01ag07

Cited by 58 publications

(46 citation statements)

References 22 publications

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“…14- 18 Volin et al 19 achieved either delayed or accelerated germination in several different agricultural species without signicantly affecting the percentage of germination. For an example, using a selective gas and plasma conditions, germination was delayed in pea, radish, soybean, corn and bean seed, while the germination was accelerated in soybean and corn seed.…”

Section: 10mentioning

confidence: 99%

“…17,23 The low pH and elevated concentration of H 2 O 2 notably affect the seed germination and plant growth. 24 Takahata et al 18 investigated the effect of bubble (one tube) discharge in drained water on plant growth as well as edible parts of the plant. Authors reported that the plants watered with plasma treated water have shown faster growth and the fruits contain higher sugar.…”

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confidence: 99%

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Enhanced seed germination and plant growth by atmospheric pressure cold air plasma: combined effect of seed and water treatment

2017

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The combined effect of non-thermal plasma treatment of water and seeds on the rate of germination and plants growth of radish (Raphanus sativus), tomato (Solanum lycopersicum), and sweet pepper (Capsicum annum) have been investigated using dielectric barrier discharges in air under atmospheric pressure and room temperature. A cylindrical double dielectric barrier discharge reactor is used for water activation and a plate-to-plate double DBD reactor is employed for seed treatment. The activation of water, for 15 and 30 min, lead to acidic solutions (pH z 3) with moderate concentrations of nitrate (NO 3 À ) and hydrogen peroxide (H 2 O 2 ). Plasma activated water (PAW) has shown a significant impact on germination as well as plant growth for the three types of seeds used. Interestingly, the positive effect, in seed germination and seedling growth, has been observed when the PAW and plasma-treated seeds (10 and 20 min) were combined. In one hand, when the seeds were (tomato and pepper) exposed to 10 min plasma and watered with PAW-15 for first 9 days followed by tap water for 51 days, the stem length is increased about 60% as compared to control sample. On the second hand, for longer exposures of seeds and water to plasma discharges, a negative effect is observed. For instance, plasma-treated seeds watered with PAW-30, the plant growth and vitality were decreased as compared to control sample.These results revealed that the developed cold plasma reactors could be used to significantly improve the seed germination as well as plant growth, nevertheless, the plasma treatment time has to be optimized for each seeds.

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Section: 10mentioning

confidence: 99%

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confidence: 99%

Enhanced seed germination and plant growth by atmospheric pressure cold air plasma: combined effect of seed and water treatment

2017

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“…In the last few years, studies have been conducted on selected species to test the effect of PAW on seed germination and plant growth …”

Section: Introductionmentioning

confidence: 99%

Plasma‐activated water to improve the stress tolerance of barley

Gierczik

Vukušić

Kovács

et al. 2020

Plasma Processes & Polymers

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It is shown that plasma‐activated water (PAW) improves tolerance against combined low temperature and hypoxia stresses during germination. Due to PAW's effect on the antioxidant system, PAW pretreatment mitigates the reducing effect on plant growth of the hydroponically applied NaCl. PAW pretreatment reduces the salt‐stress‐induced decrease of the cysteine and γ‐glutamylcysteine content and improves the plant's recovery after NaCl stress. PAW pretreatment also modifies the NaCl‐induced changes in carotenoid content, especially, β‐carotenes and xanthophylls. These compounds, together with glutathione can reduce salt‐induced damage through the removal of excess reactive oxygen species, which could be the basis of the protective effect of PAW.

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“…16,17) Various electrode configurations are employed for APPJs such as capillary dielectric barrier discharge, 18,19) microhollow cathode discharge, 20) and microfluidic discharge. [21][22][23] Among these configurations, the capillary helium (He) discharge configuration with an external electrode(s) has been widely utilized in biology-related research.…”

Section: Introductionmentioning

confidence: 99%

Effect of plasma jet diameter on the efficiency of reactive oxygen and nitrogen species generation in water

Kakuta

Furuta

et al. 2016

Jpn. J. Appl. Phys.

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The plasma jet generation of reactive oxygen and nitrogen species (RONS) in solution is important in biology, medicine, and disinfection. Studies using a wide variety of plasma jet devices have been carried out for this purpose, making it difficult to compare the performance between devices. In this study, we compared the efficiency of RONS generation in deionized (DI) water between 3.7-mm-and 800-µm-sized helium (He) plasma jets (hereafter mm-jet and µm-jet, respectively) at different treatment distances and times. The efficiency of RONS generation was determined by considering the total amount of RONS generated in DI water with respect to the input energy and gas consumption. We found that the mm-jet generated 20% more RONS in the DI water than the µm-jet at the optimized distance. However, when the input power and He gas consumption were taken into account, we discovered that the µm-jet was 5 times more efficient in generating RONS in the DI water. Under the parameters investigated in this study, the concentration of RONS continued to increase as a function of treatment time (up to 30 min). However treatment distance had a marked effect on the efficiency of RONS generation: treatment distances of 25 and 30 mm were optimal for the mm-jet and µm-jet, respectively. Our method of comparing the efficiency of RONS generation in solution between plasma jets could be used as a reference protocol for the development of efficient plasma jet sources for use in medicine, biology, and agriculture.

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Improvement of growth rate of plants by bubble discharge in water

Cited by 58 publications

References 22 publications

Enhanced seed germination and plant growth by atmospheric pressure cold air plasma: combined effect of seed and water treatment

Enhanced seed germination and plant growth by atmospheric pressure cold air plasma: combined effect of seed and water treatment

Plasma‐activated water to improve the stress tolerance of barley

Effect of plasma jet diameter on the efficiency of reactive oxygen and nitrogen species generation in water

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