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Biological control of Fusarium wilt of tomato with hypovirulent binucleate Rhizoctonia in greenhouse conditions

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Mycoscience

Abstract

 Four isolates of hypovirulent binucleate Rhizoctonia (HBNR), G1, L2, W1, and W7 were used for control of Fusarium wilt of tomato (FWT) caused by Fusarium oxysporum f. sp. lycopersici (FOL). HBNR isolates could significantly reduce disease severity (foliar symptoms and discoloration inside the stem) among five experiments under single and double applications. Reduction of disease severity by HBNR isolates, however, differed depending on HBNR isolates and treatments. Of four isolates, isolate HBNR W7 could significantly and consistently reduce (P = 0.05) disease severity. Application of HBNR isolates significantly reduced (P = 0.01) the number of colony-forming units of FOL in stems and roots of tomato. Among the HBNR isolates, G1, W1, and W7 could significantly increase (P = 0.05) fresh weight of the plants (stems and leaves). These results indicate that isolates of HBNR have a greater potential as biocontrol agents against FWT. This is the first report of biocontrol of FWT by HBNR under greenhouse conditions.

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Authors and Affiliations

  1. United Graduate School of Agricultural Science, Gifu University, Gifu, Japan, , , , , , JP

    A. Muslim

  2. Gifu Prefectural Research Institute for Agricultural Sciences, Gifu, Japan, , , , , , JP

    H. Horinouchi

  3. Laboratory of Plant Disease Science, Faculty of Agriculture, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan Tel. +81-58-293-2847; Fax +81-58-293-2847 e-mail: hyakumac@cc.gifu-u.ac.jp, , , , , , JP

    M. Hyakumachi

Authors
  1. A. Muslim
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  2. H. Horinouchi
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  3. M. Hyakumachi
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Additional information

Received: July 17, 2002 / Accepted: November 25, 2002

Present address: Department of Plant Pests and Diseases, Faculty of Agriculture, Sriwijaya University, Palembang, Indonesia

Acknowledgments We are grateful to Dr. H. Komada for providing nonpathogenic Fusarium F13. We thank Dr. Onwona-Agyeman Siaw and Miss M. Kubota for correcting the English in the manuscript. The senior author (A.M.) thanks the Ministry of Education, Culture, Sports, Science and Technology (Monbukagakusho) Japan, for financial assistance.

Correspondence to:M. Hyakumachi

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Muslim, A., Horinouchi, H. & Hyakumachi, M. Biological control of Fusarium wilt of tomato with hypovirulent binucleate Rhizoctonia in greenhouse conditions. Mycoscience 44, 0077–0084 (2003). https://doi.org/10.1007/s10267-002-0084-x

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  • DOI: https://doi.org/10.1007/s10267-002-0084-x

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