种子活力光学无损检测技术研究进展

种子活力检测是种子检测中的重要一环,国际种子检验协会建议的检测方法主要有标准发芽实验法、TTC染色法、电导率测定和加速老化试验等方法。这些检测方法具有检测结果显示直观、测量准确等优点,但也存在对种子有破坏作用、检测过程复杂和耗时耗力等缺点。随着现代免耕直播技术的发展,对种子活力的检测在速度和无损性方面提出了更高的要求,而传统方法难以实现快速无损检测目标。基于光学技术的种子活力检测方法具有效率高、无损的特点,近年来得到了国内外相关学者的关注。本文对光学技术在种子活力检测上的应用进行了综述,介绍了X光、近红外光谱、高光谱、光声光谱、可调谐半导体激光吸收光谱和色选技术等光学技术在种子活力检测中的研究,并对光学技术在种子活力检测的前景进行了展望。

Progress in Research of Optical Non-Destructive Test Technology for Seed Vigor

As an important part of seed test, there are many methods for testing seed vigor, the ways suggested by International Seed Testing Association are standard germination test, dyeing with TTC staining method, conductivity test, accelerated aging test, etc. With the help of these methods, the results are measured accurately and displayed easily, but the seeds are damaged, the process is complex, time and work are wasted. Nowadays, modern no-tillage technology calls for a new kind of method for testing seed vigor with the higher requirement of less time and non-destruction, while the traditional methods can hardly reach that goal. The ways to test seed vigor based on the optical technology are highly efficient and non-destructive, and have attracted great attention from relevant scholars at home and abroad in recent years. This review pays attention to the application of optical technology in seed vigor test, and introduces the methods like X-ray, near-infrared spectroscopy, hyperspectral imaging, photoacoustic spectroscopy, tunable diode laser absorption spectroscopy and color sorting. Finally, the prospect for optical technology using in seed vigor test is proposed.