Seed processing is a key part of any organized seed production program and serves to improve seed lot quality. The objective of this study was to establish a processing flowchart for mung bean seeds (Vigna radiata L.). Two seed lots were used: the first with seeds harvested at three different times and the second from a single harvest, with mostly mature pods. We tested 13 seed processing flowcharts, using a fan machine and sieves, a pneumatic separator, a gravity table and a sieve classifier. The seeds were evaluated for their physical, physiological and sanitary qualities. The ideal processing flowchart for mung bean seeds harvested at different times was the use of a fan machine and sieves followed by the gravity table. On the other hand, for seed lots from a single harvest, the ideal seed processing was a fan machine and sieves followed by a pneumatic separator and the gravity table.
gravity table; size; specific mass; physiological quality
