Abstract
AbstractAtmospheric nonthermal plasma (ANTP) is used for various biological applications including seed quality improvements in crop production. However, the underlying mechanisms of plasma-induced seed action are not fully explained and operating large-scale ANTP on seeds is highly challenging. Two large-scale ANTPs, streamer corona plasma (SCP) and dielectric barrier discharge (DBD) plasma, were used to enhance rice seed vigor through surface modification and functionalization. The SCP and DBD plasma were conducted under the same power source and applied to rice seeds to modify their surface from being highly hydrophobic to being highly hydrophilic, as defined by the apparent contact angle measurement. The results show that SCP requires less treatment time (~ 2 min) for surface activation than the DBD plasma process (~ 10 min). Both plasma-treated seeds showed higher seed vigor than non-treated seeds. For 50% of the viable seeds to emerge, the SCP-treated seeds took on average about 62 h., while the untreated rice seeds took around 72 h. The germination percentage of all conditions is ~ 92% which is a typical proportion of good seed quality. The microstructure of the rice seed surface suggests that the bombardment of highly energetic ions and the reaction of reactive oxygen and nitrogen species on the seed surface cause morphological changes via surface etching and functionalization without any adverse effects on seed nutrition.
Graphical abstract
Publisher
Springer Science and Business Media LLC
Subject
Surfaces, Coatings and Films,Condensed Matter Physics,General Chemical Engineering,General Chemistry
Reference58 articles.
1. Alexandratos N, Bruinsma J (2012) World agriculture towards 2030/2050: the 2012 revision In: FAO Agricultural Development Economics Division (ed) Agricultural Development Economics (ESA) Working Paper No. 12–03, Food and Agriculture Organization of the United Nations, Rome, Italy
2. International Rice Research Institute (IRRI) (2019) Rice to zero hunger, Los Baños, Laguna, Philippines. https://www.irri.org/world-food-day-2019-rice-zero-hunger
3. Basra SMA, Farooq M, Tabassam R, Ahmad N (2005) Physiological and biochemical aspects of pre-sowing seed treatments in fine rice (Oryza sativa L.). Seed Sci Technol 33:623–628. https://doi.org/10.15258/sst.2005.33.3.09
4. Finch-Savage WE, Bassel GW (2016) Seed vigour and crop establishment: extending performance beyond adaptation. J Exp Bot 67:567–591. https://doi.org/10.1093/jxb/erv490
5. Misra N, Yadav B, Roopesh M, Jo C (2019) Cold plasma for effective fungal and mycotoxin control in foods: mechanisms, inactivation effects, and applications. Compr Rev Food Sci Food Saf 18:106–120. https://doi.org/10.1111/1541-4337.12398
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献