Antagonistic potential of Trichoderma longibrachiatum and T. hamatum resident on maize (Zea mays) plant against Fusarium verticillioides (Nirenberg) isolated from rotting maize stem

Antagonistic potential of Trichoderma longibrachiatum and T. hamatum against the pathogen Fusarium verticillioides was examined in the laboratory. This was done by pairing each Trichoderma species with the pathogen on 9 cm Petri plates of acidified potato dextrose agar (APDA). Three pairing methods...

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Bibliographic Details
Published in:Archiv für Phytopathologie und Pflanzenschutz 2010-05, Vol.43 (8), p.744-753
Main Authors: Sobowale, A. A., Odebode, A. C., Cardwell, K. F., Bandyopadhyay, R., Jonathan, S. G.
Format: Article
Language:English
Subjects:
antagonist
Fusarium verticillioides
growth inhibition
pathogen
Solanum tuberosum
T. hamatum
Trichoderma longibrachiatum
Zea mays
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Summary:Antagonistic potential of Trichoderma longibrachiatum and T. hamatum against the pathogen Fusarium verticillioides was examined in the laboratory. This was done by pairing each Trichoderma species with the pathogen on 9 cm Petri plates of acidified potato dextrose agar (APDA). Three pairing methods were employed and gradings were assigned to different radial growth suppression of F. verticillioides by each Trichoderma species. Analysis was done using the GLM procedure of the SAS package. Both Trichoderma species significantly inhibited radial growth of F. verticillioides (P = 0.01, R 2  = 0.99) irrespective of pairing method. 'Inoculating antagonist before pathogen' supported the best growth inhibition of F. verticillioides by both Trichoderma species. Both Trichoderma species differed significantly (P > 0.0029) in inhibiting radial growth of F. verticillioides. Growth inhibition differed significantly within (P > 0.0059) and among (P > 0.0001) pairing methods. T. longibrachiatum was significantly better than T. hamatum in inhibiting radial growth of F. verticillioides, even at P = 0.01. T. hamatum and T. longibrachiatum could thus be said to show promising antagonistic potential against F. verticillioides with the latter showing better prospects.
ISSN:0323-5408
1477-2906
DOI:10.1080/03235400802175904