RESUMO1 Recebido para publicação em 25/11/97 e na forma revisada em 07/08/98. 2 ABSTRACT Simulation of the transgenic soybean tolerant to glyphosate through explant cultivationThe objective of this experiment consisted in simulation in vitro of the transgenic soybean tolerant to glyphosate through explant cultivation in culture medium containing aromatic amino acids. The effects of glyphosate on soybean (Glycine max (L.) Merrill) were evaluated in seeds harvested from explants of cv UFV-16. The soybean explants were cultivated in liquid medium culture with pH about 5.0. Each explant consisted of one fruit completely expanded, containing two seeds of 100 mg approximately, and connected to a stem segment of 45 mm length. The explants were submitted to the following treatments: A = glutamine (Gln); B = Gln + phenylalanine (Phe) + tyrosine (Try) + tryptophan (Trp); C = Gln + glyphosate; D = Gln + Phe + Tyr + Trp + glyphosate. The experiment was conducted under irradiance of 80 mol -2 s -1 at 25 o C for 204 hours. The treatments with aromatic amino acids and glutamine avoided the herbicide effect on seed fresh and dried weights
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