Evaluation of the physical and physiological quality of soybean seeds during processing

Abstract

The importance of producing high quality seeds for the soy bean cropisrelated to the establishment of a uniform stand in thefield, made up of plants that preserve thegenetic, sanitaryand high physiological potential. One of the stage sof seed productio nisthe beneficiation, which aims to classify seeds, remove contaminant sand prepare them for commercialization. The objective of this research was to evaluate the possible changes in the physical and physiological quality of soy bean seeds during the stages of seed processing. Samples were obtaineda teach stage of the seed treat ment process (reception, pre-cleaning, drying, cleaning, spirals, stand ardization, densimetric table and bagging), the seeds we resubmitted to determination of the degree of humid it yand germination tests, Accelerated aging, tetrazolium (mechanical damage class from 1 to 5, and from 6 to 8) and so dium hypochlorite. The experiment was evaluated in a completely randomized design, witheight collection points (treatments) and four replications. From the results obtained, it was concluded that under the conditions evaluated, the seed treatment caused mechanical damages to the soybean seeds, especially in the initial stages of the process, when the seeds had a moisture content of 17.0%. As the processing took place, especially after classification by density, the germination of the soybean seeds reach adequate levels of quality for its commercialization.