fungicides efficiency to soybean seeds treatment eficiÊncia de fungicidas para o tratamento de sementes de soja (glycine max)

Clicks: 173
ID: 226740
2007
<!-- @page { margin: 2cm } --> <p class="western" align="justify">This study was carried out at Escola de Agronomia - Universidade Federal de Goiás, Goiânia - GO, in order to evaluate the efficiency of the following fungicides to soybean seeds treatment: 1) thiabendazole + thiram (17 + 70 g.a.i./100kg); 2) benomyl + thiram (g.a.i./100kg); 3) difenoconazole (5,0 g.a.i./100kg); 4) difenoconazole + thiram (5,0 + 70 g.a.i./100kg); 5) difenoconazole + captan (5,0 + 90 g.a.i./100kg); 6) carbendazin + thiram (30 + 70 g.a.i./100kg); 7) control. All fungicides reduced <em>Fusarium</em> <em>semitectum</em> and <em>Colletotríchum</em> <em>truncatum</em> incidence. Benomyl + thiram presented the highest efficiency in the control of these patogens. Difenoconazole didn’t present reasonable results, but difenoconazole + thiram was similar to thiabenazole + thiram. In field conditions, there was a meaningful increase in plant population as well as in productivity due to the fungicides treatment. Difenoconazole + thiram and carbendazin + thiram treatments provided higher stand at 12, 18 and 26 days after planting.</p> <p class="western" align="justify">KEY-WORDS: <em>Fusarium semitectum</em>; <em>Colletotrichun truncatum</em>; chemical control.</p>
<!-- @page { margin: 2cm } --> <p class="western" align="justify">Com o objetivo de avaliar a eficiência de fungicidas para o tratamento de sementes de soja, foram conduzidos ensaios em laboratório e no campo (Escola de Agronomia - Universidade Federal de Goiás, Goiânia - GO), testando os seguintes tratamentos: 1) thiabendazole + thiram (17 + 70 g i.a./100 kg); 2) benomyl + thiram (30 + 70 g i.a./100 kg); 3) difenoconazole (5,0 g i.a./100 kg); 4) difenoconazole + thiram (5,0 + 70 g i.a./100 kg); 5) difenoconazole + captan (5,0 + 90 g i.a./100 kg); 6) carbendazin + thiram (30 + 70 g i.a./100 kg); 7) testemunha. Todos os fungicidas reduziram a incidência de <em>Fusarium</em> <em>semitectum</em> e <em>Colletotrichum</em> <em>truncatum</em> nas sementes. Benomyl + thiram apresentou a maior eficiência no controle destes patógenos. Difenoconazole aplicado isoladamente não apresentou bons resultados, no entanto, em mistura com thiram, foi semelhante ao tratamento com thiabendazole + thiram. No campo, observou-se elevação significativa na população de plantas e na produtividade em função dos tratamentos com fungicidas. Carbendazin + thiram e difenoconazole + thiram propiciaram maior stand aos 12, 18 e 26 dias após o plantio.</p> <p class="western" align="justify">PALAVRAS-CHAVE: <em>Fusarium semitectum</em>; <em>Colletotrichun truncatum</em>; controle químico.</p>
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Authors ;Luís Antônio Siqueira de Azevedo;Nivaldo Alves Pereira Filho;Giselle Ottoni Costa;Mara Rúbia da Rocha
Journal chemical engineering and technology
Year 2007
DOI 10.5216/pat.v27i2.2967
URL
Keywords Keywords not found

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