Subsequently, the embryos were individually observed with a magnifying stereoscopic and evaluated for uniformity, color intensity, presence of milky white areas, tissues appearance and location of these colorations in relation to the essential areas of the embryo (hypocotyl-radicle axis and vascular area), being classified into viable and unviable, in accordance with standards specified by AOSA (Association of Official Seed Analysts) (2009) and Brasil (2009), for various agricultural and forest species: 1) viable: embryos with full coloration in light pink or bright red; radicle end without a milky white/yellowish coloration; and 2) unviable: embryos with full coloration in crimson red/intense red or milky white/yellowish; radicle end without coloration or an intense red coloration. Results were expressed as percentage of viable seeds