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vi seminário sobre pragas, doenças e plantas daninhas do ... - IAC

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AVALIAÇÃO DE POSSÍVEIS ANTAGONISTAS NO CONTROLE<br />

BIOLÓGICO DE DUAS DOENÇAS DE SOLO NO FEIJOEIRO<br />

Francelino Pereira Costa ( 1 ); Cláudio Lopes Almeida ( 1 ); Marcelo Hirata Campacci ( 1 );<br />

Patricia <strong>do</strong>s Santos Oliveira ( 1 ); Simone Bragantini Camilo ( 1 ) e Andréa Dantas de Souza ( 1 )<br />

RESUMO<br />

O feijoeiro comum é ataca<strong>do</strong> por diversas <strong>do</strong>enças de solos dentre elas destacam-se as podridões<br />

radiculares causadas por Fusarium oxysporum f.sp. phaseoli e Fusarium solani, que nos últimos anos<br />

aumentaram consideravelmente. O presente trabalho objetivou avaliar o potencial “in <strong>vi</strong>tro” de agentes de<br />

controle biológico (Bacillus, Trichoderma, Saccharomyces), no crescimento micelial das colônias e efeito<br />

<strong>do</strong>s metabólitos voláteis e termoestáveis, produzi<strong>do</strong>s por esses antagonistas. Utilizou-se como delineamento<br />

experimental inteiramente casualiza<strong>do</strong> com 5 repetições. Os resulta<strong>do</strong>s demonstraram diferenças<br />

significativas entre AP3 e os demais tratamentos. No entanto o isola<strong>do</strong> ACB04 para F. oxysporum e os<br />

isola<strong>do</strong>s ACB38, ACB183 e KD01 para F. solani estimularam o crescimento micelial. Conclui-se que o<br />

controle biológico <strong>do</strong> crescimento micelial “in <strong>vi</strong>tro” de Fusarium oxysporum e Fusarium solani é eficaz.<br />

Sugere-se novos testes na utilização de AP3 para o controle biológico de in <strong>vi</strong>vo.<br />

Palavras-chave: Fusarium oxysporum f. sp. phaseoli, Fusarium solani, <strong>do</strong>ença radicular.<br />

ABSTRACT<br />

EVALUATION OF POSSIBLE ANTAGONISTS IN THE BIOLOGICAL CONTROL OF TWO ILLNESSES<br />

OF COMMON BEAN SOIL. The common bean is attacked by diverse ground illnesses amongst them is<br />

distinguished rot root it caused for Fusarium oxysporum f.sp. phaseoli and Fusarium solani, that in the<br />

last years it had a considerable increase. The present work objectified to evaluate the potential “in <strong>vi</strong>tro”<br />

of agents of biological control (Bacillus, Trichoderma, Saccharomyces), in the matching of the colonies<br />

and effect of the volatile metabolites and nonvolatile, produced for the antagonists. Experimental delineation<br />

was used entirely ran<strong>do</strong>mized with 5 repetitions. The results had demonstrated to significant differences<br />

between AP3, differing enter the too much treatments. However the isolated ACB04 for F. oxysporum and<br />

the isolated ACB38, ACB183 and KD01 for F. solani had stimulated the micelial growth. One concludes<br />

that the biological control of the micelial growth “in <strong>vi</strong>tro” of Fusarium oxysporum and Fusarium solani is<br />

efficient. One suggests new tests in the use of AP3 for alive the biological control of in.<br />

( 1 ) Laboratório de Fitossanidade – Centro Tecnológico e Ambiental da Faculdade Integral Cantareira – CEATEC - FIC. Rua Marcos<br />

Arruda, 729, Belenzinho, CEP.: 03020-000, São Paulo – SP. E-mail: maliluliza@uol.com.br<br />

Documentos, <strong>IAC</strong>, Campinas, 79, 2007<br />

153

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