Abstract

Effect of products of surface discharge on seeds of soft winter wheat in electrode configurations consisting of parallel strips with interstrip distances of 5 and 10 mm is experimentally studied. In each system, the seeds are exposed for 10, 60, 120, or 180 s at voltages of 1.8, 2.1, 2.4, or 2.7 kV using sine-shaped supply voltage of electrodes with a frequency of 4.4 kHz. The seeds are placed as a single layer on a grounded surface at a distance of 10 mm from the plane of dielectric barrier. The results of treatment are assessed using morphological characteristics of three-day germs. Air flows in the gap are monitored using particle image velocimetry. It is shown that the regimes of treatment are divided into two groups. For the first group, the air flow reaches the plane in which the seeds are placed. For the second group, the air flow does not reach the plane. In the first case, germination can be stimulated at an interstrip distance of 10 mm, a voltage of 2.4–2.7 kV, and any exposure time. Germination percentage remains stable and high in all regimes.

中文翻译：

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利用表面放电对冬小麦种子进行预播处理

摘要

实验研究了表面放电产物对软冬小麦种子的影响，该电极结构由带间距离为5和10 mm的平行条组成的电极配置。在每个系统中，使用频率为4.4 kHz的正弦形电极供电电压，将种子在1.8、2.1、2.4或2.7 kV的电压下暴露10、60、120或180 s。种子以单层形式放置在接地表面上，与介电屏障平面相距10 mm。使用三天细菌的形态特征评估治疗结果。使用粒子图像测速仪监测间隙中的空气流动。结果表明，治疗方案分为两组。对于第一组，气流到达放置种子的平面。对于第二组，气流未到达飞机。在第一种情况下，可以在10 mm的间距，2.4-2.7 kV的电压以及任何暴露时间刺激发芽。在所有制度下，发芽率均保持稳定且较高。