种子介电分选技术研究新进展

本文讨论了植物种子的电场、磁场效应，肯定了电磁场处理对种子生理生化指标的正效应，它能提高种子活力和发芽率，增大发芽势；对国内外种子介电分选装置与设备的现状和发展作了介绍和分析；对介电分选机理作了进一步的探讨，提出了区别于传统分选技术的关键因素是电极化力。在分析分选电场的构成及计算方法的同时，对作为分选介质的种子在电场中的状态、介电性质以及影响因素作了说明，指出影响种子介电性质的主要因素是种子含水率

THE NEW ADVANCES OF STUDY ON SEED DIELECTRIC SEPARATION TECHNOLOGY

The article discusses the electric field and magnetic field effects of plant seeds,affirms the positive effects of the electromagnetic field treatment on the physiology and biochemistry indexes,which can raise the vitality and germination rate of seeds, and increase the germinating energy of seeds.The present condition and developing process of seed dielectric separation apparatus and equipment are introduced and analyzed.The mechanism of dielectric separation is further researched.It is put forward that the key factor to distinguish traditional separation is electric polarization force.While the construction of separation field and the method of calculating are presented,the state of seeds considered as separation dielectric in the electric field,dielectric property and affecting factors are instructed as well It points out that the main factor affecting the dielectric property of seed is moisture content of seeds. Further more,there is usually a linear relationship between them.Also the methods and equipment to measure the dielectric property of seeds are given.