摘要：ABSTRACT: Raffinose and stachyose levels decreased during germination in the Brazilian soybean (Glycine max. (L.) Merril) Cultivars IAC-5, IAC-8 GX and Foscarim GA, which are the most extensively produced cultivars in the Riberão Preto region of the State of São Paulo. Raffinose plus stachyose levels decreased more than 80% in 2-day plantlets and more than 90% in 4-day plantlets. Sucrose levels decreased progressively until the 4th day of germination but increased on the 6th day. On the other hand, fructose and glucose, which were not detectable in the mature grain, were quantifiable by the second day of germination and the increased up to the sixth day, with the increase in the ketose levels being always higher than the increase in the aldose. The levels of these simple sugar always corresponded to smaller quantity than the amounts of sucrose plus raffinose and stachyose that disappeared. KEY-WORDS: Raffinose in soybeans; flatulance; germination.
