Optical properties of asymptomatic soybean seeds, green seeds, and four classes of soybean seeds discolored by fungi were determined using a spectroradiometer. Knowledge of the optical properties of soybean seeds provided a means of identifying that differences in spectral reflectance existed that could be used for discriminating among asymptomatic soybean seeds and seeds discolored by a pathogen. This knowledge also aided in identifying the feasibility of using color filters as a means for separation of soybean seed classes. Electromagnetic radiation between 436 and 724 nm provided the most information for linear separation of soybean seeds, which was useful for identifying differences in the colors of soybean seeds. However, no single wavelength or combination of wavelengths could be used to linearly separate all classes of damaged soybean seeds.
|Original language||English (US)|
|Number of pages||5|
|Journal||Transactions of the American Society of Agricultural Engineers|
|State||Published - May 1 1993|
ASJC Scopus subject areas
- Agricultural and Biological Sciences (miscellaneous)