文献类型： 外文期刊
作者： Song, Ping 1 ; Song, Peng 2 ; Yang, Hongwei 1 ; Yang, Tao 1 ; Xu, Jing 1 ; Wang, Kaitian 1 ;
作者机构： 1.Shenyang Agr Univ, Coll Informat & Elect Engn, Shenyang 110866, Liaoning, Peoples R China
2.Beijing Res Ctr Informat Technol Agr, Beijing 10097, Peoples R China
3.Natl Res Ctr Intelligent Equipment Agr, Beijing 10097, Peoples R China
关键词： nondestructive detection; nuclear magnetic resonance; transverse relaxation time; signal amplitude; rice; seeds vigor
期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING （ 影响因子：2.032； 五年影响因子：2.137 ）
ISSN： 1934-6344
年卷期： 2018 年 11 卷 6 期
页码：
收录情况： SCI
摘要： A new method to predict the seed vigor of rice was developed to control adulteration during the seed trading process and to address the deficiencies of traditional manual detection methods. Low-field nuclear magnetic resonance (LF-NMR) technique was used to detect the vigor of rice seeds. Four varieties (Beijing-1, Qianchonglang-2, Yanfeng-47 and Shennong-265) of rice seeds from the Rice Research Institute of Shenyang Agricultural University were chosen for the experiment. The transverse relaxation time T-2, T-21 and T-22 were observed in the experiment. The peak start time of free water (transverse relaxation time T-22), signal amplitude of bound water (transverse relaxation time T-21), and moisture content decreased with the decrease in the vigor of the seeds. There were no obvious trends observed for the top of the peak and the end point of the transverse relaxation time T-22. In addition, the start, top, and end time of the peak (transverse relaxation time T-21), and the signal amplitude of bound water showed no consistent changes. The results indicated that LF-NMR could be used as a method to distinguish the vigor of rice seeds rapidly. This study provided theoretical basis and technical support for the rapid detection of rice seed vigor.
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