Differential antagonism of Trichoderma sp. against Macrophomina phaseolina
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Plant Pathology Research Institute, Agricultural Research Center, 9-Gamaa, St. Giza, Egypt
Deptement of Agricultural Botany Faculty of Agriculture, Suez Canal University, Ismailia, Egypt
Corresponding author
Aly A. Aly
Plant Pathology Research Institute, Agricultural Research Center, 9-Gamaa, St. Giza, Egypt
Journal of Plant Protection Research 2007;47(2):91-102
In view of the ecological hazards of chemicals, pot experiments were conducted to determine the efficacy of Trichoderma sp. against Macrophomina phaseolina. Greenhouse evolution of the interaction between M. phaseolina isolates and Trichoderma sp. isolates revealed a very highly significant (p = 0.0000). M. phaseolina isolate x antagonist isolate interaction for all the following parameters: preemergence damping-off, postemergence damping-off, survival, plant height, and dry weight. This interaction implies that a single isolate of antagonist can be highly effective againstan isolate of M. phaseolina, but may have only minimal effectsonotherisolatesof M. phaseolina. Therefore, isolates of antagonist should be tested against as many isolates of M. phaseolina as possible, as this will improve the chance of identifying antagonist isolates effective against several isolates of M. phaseolina .
The authors have declared that no conflict of interests exist.
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