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KMID : 1024520190280030385
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Journal of the Environmental Sciences
2019 Volume.28 No. 3 p.385 ~ p.392
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Control Effect of Fusarium Wilt of Cucumber by Trichoderma Collection Strain
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Park Youn-Jin
Lee Young-Su
Ann Seoung-Won
Cho Yong-Koo
Lee Hyung-Won
Jang Myoung-Jun
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Abstract
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This study investigated the relationship among seven species of trichoderma through the identification of strains collected in Korea. The phylogenetic tree among the collected strains was classified into four groups. The trichoderma strains isolated in this way showed inhibitory effect on the fusarium wilt which is parasitic to cotyledon stem..The invisibility of J9, J10, J13 and J16 strains were higher in comparison with other strains in vitro test stand, and their spore production level was also higher. In the aluminum ring tests, it showed that the yield of the spores in J9, J10 and J13 were more than any other strain. As a result conducting the port test for cucumbers, the plant lengths of J13 were larger than the control plot, and the root lengths of all strains, except for J2 were longer than the control plot, and the root weights of J1, J9, J10, J13 and J16 were larger than the control plot. The disease severity for the fusarium wilt showed the smallest values at J13 and J16 in comparison with the control plot, and the control values of J13 and J16 were higher than other strains.
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KEYWORD
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Disease control, Fusarium wilt, Trichoderma species
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