The effects of three plasma-activated water generation systems on lettuce seed germinationCitation:
Abbaszadeh R., Khosravi Nia P., Fattahi M., Marzdashti H.G. (2021): The effects of three plasma-activated water generation systems on lettuce seed germination. Res. Agr. Eng., 67: 131–137.
Irrigation water treatment using plasma technology is a new approach to improve productivity. In this study the generation of plasma-activated water (PAW) as a novel subject in agriculture is investigated. Three water treatment systems were designed and evaluated: 1st PAW generation from vapor and injection into the water, 2nd PAW generation using electrical discharge on the water surface and 3rd PAW generation in the aeration path into the water. The lettuce seeds were irrigated with PAW. The germination rate and mean germination time were measured after 6 days. The seedlings weight and the number of seedlings with a length of more than 3 cm were also recorded after 8 days. The results showed that PAW had a significant effect on the germination rate and length of seedlings. Electrical discharge on the water surface had the best results. Germination rate and the number of seedlings with a length of more than 3 cm increased by 11 and 36% respectively. While injection of plasma-treated air into the water significantly reduced the number of seedlings longer than 3 cm, compared to the control. In conclusion, the PAW application can improve some attributes of lettuce germination depending on the PAW system.
Attri P., Ishikawa K., Okumura T., Koga K., Shiratani M. (2020). Plasma agriculture from labora-tory to farm: A review. Processes, 8: 1002. https://doi.org/10.3390/pr8081002
Bafoil M., Jemmat A., Martinez Y., Merbahi N., Eichwald O., Dunand C., Yousfi M. (2018): Effects of low temperature plasmas and plasma activated waters on Arabidopsis thaliana germi-nation and growth. PloS one 13: e0195512
Boushehri M., Abbaszadeh R. (2019): The effect of plasma activated water on seed germinationand seedling growth of cucumber. 11th Iranian Horticultural Science Congress. Urmia, Iran: Aug 26–29, 2019: 5
Maguire J.D. (1962): Speed of germination – Aid in selection and evaluation for seedling emer-gence and vigor. Crop science, 2: 176–177. https://doi.org/10.2135/cropsci1962.0011183X000200020033x
Hosseini H., Rezvani Moghadam P. (2009): Effect of water and salinity stress in seed germina-tion on Isabgol (Plantago ovata). Iranian Journal of Field Crops Research, 4: 15–22.
Judée F., Simon S., Bailly C., Dufour T. (2018): Plasma-activation of tap water using DBD for agronomy applica-tions: Identification and quantification of long lifetime chemical species and production/consumption mechanisms. Water research, 133: 47–59. https://doi.org/10.1016/j.watres.2017.12.035
Kučerová K., Henselová M., Slováková L., Hensel K. (2019): Effects of plasma activated water on wheat: Germination, growth parameters, photosynthetic pigments, soluble protein content, and antioxidant enzymes activity. Plasma Processes and Polymers, 16: e1800131. https://doi.org/10.1002/ppap.201800131
Ling L., Jiafeng J., Jiangang L., Minchong S., Xin H., Hanliang S., Yuanhua D. (2014): Effects of cold plasma treatment on seed germination and seedling growth of soybean. Scientific Reports, 4: 5859.
Park D.P., Davis K., Gilani S., Alonzo A., Dobrynin D., Friedman G., Fridman A., Rabinovich A. (2013): Reactive nitrogen species produced in water by non-equilibrium plasma increase plant growth rate and nutritional yield. Current Applied Physics, 13: S19–S29. https://doi.org/10.1016/j.cap.2012.12.019
Sivachandiran L., Khacef A. (2017): Enhanced seed germination and plant growth by atmospheric pressure cold air plasma: Combined effect of seed and water treatment. RSC Advances, 7: 1822–1832. https://doi.org/10.1039/C6RA24762H
Takahata J., Takaki K., Satta N., Takahashi K., Fujio T., Sasaki Y. (2015): Improvement of growth rate of plants by bubble discharge in water. Japanese Journal of Applied Physics, 54: 01AG07. https://doi.org/10.7567/JJAP.54.01AG07
Takashima K., Hu Y., Goto T., Sasaki S., Kaneko T. (2020). Liquid spray transport of air – Plas-ma-generated reactive species toward plant disease management. Journal of Physics D: Applied Physics, 53: 354004. https://doi.org/10.1088/1361-6463/ab87bd
Thirumdas R., Kothakota A., Annapure U., Siliveru K., Blundell R., Gatt R., Valdramidis V.P. (2018): Plasma activated water (PAW): Chemistry, physico-chemical properties, applications in food and agriculture. Trends in Food Science & Technology, 77: 21–31.
Wang P.H., Chang C.W. (2003): Detection of the low-germination-rate resting oospores of Pythium myriotylum from soil by PCR. Letters in Applied Microbiology, 36: 157–161. https://doi.org/10.1046/j.1472-765X.2003.01287.x
Zhang S., Rousseau A., Dufour T. (2017): Promoting lentil germination and stem growth by plasma activated tap water, demineralized water and liquid fertilizer. RSC Advances, 7: 31244–31251. https://doi.org/10.1039/C7RA04663D