Eficiência de fungicidas para o tratamento de sementes de soja (Glycine max)

Abstract

This study was carried out at Escola de Agronomia - Universidade Federal de Goiás, Goiânia - GO, in arder to evaluate the efficiency ofthe following fungicides to soybean seeds treatment: 1) thiabendazole + thiram (17 + 70 g.a.i./lOOkg); 2) benomyl + thiram (g.a.i./lOOkg); 3) difenoconazole (5,0 g.a.i./lOOkg); 4) difenoconazole + thiram (5,0 + 70 g.a.i./lOOkg); 5) difenoconazole + captan (5,0 + 90 g.a.i./lOOkg); 6) carbendazin + thiram (30 + 70 g.a.i./100kg); 7) contrai. Ali fungicides reduced Fusarium semitectum and Colletotrichum truncatum incidence. Benomyl + thiram presented the highest efficiency in the contrai ofthese patogens. Difenoconazole didn't present reasonable results, but difenoconazole + thiram was similar to thiabenàzole + thirarn. ln field conditions, there was a meaningful increase in plant population as well as in productivity due to the fungicides treatment. Difenoconazole + thiram and carbendazin + thirarn treatments provided higher stand 12, 18 and 26 days after planting.