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Treatment of Maize Seeds (Zea Mays) by Nonthermal Plasma Generated by Gliding Electric Discharge for Application in Agriculture
IEEE Transactions on Plasma Science ( IF 1.5 ) Pub Date : 2021-07-12 , DOI: 10.1109/tps.2021.3094935
Jean-Paul Kamseu-Mogo , Georges Kamgang-Youbi , Serge A. Djepang , Berthelot S. Tamo , Samuel Laminsi

The gliding arc (Glidarc) electric discharge generates nonthermal plasma at atmospheric pressure. This work proposes to investigate the effect of humid air Glidarc plasma on maize seeds by studying the early germination and the effect on maize pathogens potentially harmful. The seeds were treated for 300 and 900 s in spatial post-discharge mode. At the first sight, there was a coloration change of the surface of 900 s-treated seeds, which became darker than control ones. Scanning electron microscopy (SEM) analysis showed no change for 300-s-treated but significant changes for higher exposure (900 s) revealed by modification of the etched/eroded surface of the starch caryopsis resulting in water holes and large channels. The pathogenicity test through the fungal infection led to a degree of 58% for the untreated seeds and 6.7% and 13.3% for the seeds treated for 300 and 900 s, respectively, and, thus, an important load reduction of fungi when the seeds were pretreated. Then, germination percentage (GP) along the early growth parameters was evaluated and the results showed that under laboratory conditions, these parameters increased by 4.6%–17.4% for GP, 5.8%–36.7% for shoot length, and 1%–12.9% for root length. Furthermore, the Fourier transform infrared (FTIR) spectroscopy showed no change in the bonds between atoms after the plasma treatment but revealed a surface activation due to the degradation of lipids. This application could contribute to the fight against food insecurity in Cameroon and in the world without using chemical additives.

中文翻译:

用滑动放电产生的非热等离子体处理玉米种子(Zea Mays)在农业中的应用

滑翔弧 (Glidarc) 放电在大气压下产生非热等离子体。这项工作旨在通过研究早期萌发和对可能有害的玉米病原体的影响来研究潮湿空气 Glidarc 等离子体对玉米种子的影响。种子在空间后放电模式下处理 300 和 900 秒。乍一看,经过 900 s 处理的种子表面有颜色变化,比对照种子颜色变深。扫描电子显微镜 (SEM) 分析显示,300 秒处理没有变化,但更高曝光 (900 秒) 的显着变化是通过修改淀粉颖果的蚀刻/侵蚀表面导致水孔和大通道。通过真菌感染进行的致病性测试导致未处理种子的致病度为 58%,而未处理的种子为 6.7% 和 13。分别处理 300 秒和 900 秒的种子减少了 3%,因此,当种子经过预处理时,真菌的负载量显着降低。然后,沿着早期生长参数评估发芽率 (GP),结果表明,在实验室条件下,这些参数对于 GP 增加了 4.6%–17.4%,对于枝条长度增加了 5.8%–36.7%,和 1%–12.9%为根长。此外,傅里叶变换红外 (FTIR) 光谱显示等离子体处理后原子之间的键没有变化,但显示出由于脂质降解导致的表面活化。该应用程序可以在不使用化学添加剂的情况下,在喀麦隆和世界范围内对抗粮食不安全问题。评估了早期生长参数的发芽率 (GP),结果表明,在实验室条件下,这些参数对于 GP 增加了 4.6%–17.4%,对于枝长增加了 5.8%–36.7%,对于根增加了 1%–12.9%长度。此外,傅里叶变换红外 (FTIR) 光谱显示等离子体处理后原子之间的键没有变化,但显示出由于脂质降解导致的表面活化。该应用程序可以在不使用化学添加剂的情况下,在喀麦隆和世界范围内对抗粮食不安全问题。评估了早期生长参数的发芽率 (GP),结果表明,在实验室条件下,这些参数对于 GP 增加了 4.6%–17.4%,对于枝长增加了 5.8%–36.7%,对于根增加了 1%–12.9%长度。此外,傅里叶变换红外 (FTIR) 光谱显示等离子体处理后原子之间的键没有变化,但显示出由于脂质降解导致的表面活化。该应用程序可以在不使用化学添加剂的情况下,在喀麦隆和世界范围内对抗粮食不安全问题。傅里叶变换红外 (FTIR) 光谱显示等离子体处理后原子之间的键没有变化,但显示出由于脂质降解导致的表面活化。该应用程序可以在不使用化学添加剂的情况下,在喀麦隆和世界范围内对抗粮食不安全问题。傅里叶变换红外 (FTIR) 光谱显示等离子体处理后原子之间的键没有变化,但显示出由于脂质降解导致的表面活化。该应用程序可以在不使用化学添加剂的情况下,在喀麦隆和世界范围内对抗粮食不安全问题。
更新日期:2021-08-13
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