Characterization of Mutants of TrichodermaHarzianum with Altered Antibiotic Production Characteristics
The use of Trichoderma harzianum as a biological control agent has achieved satisfactory disease control in sterile composts (Locke et al., 1985), and in solarised soils (Katan, 1981), but in broad acre agriculture its use has met with variable success (Papavizas, 1987). The limitations of Trichoderma as a biological control agent in natural soils include its susceptibility to competition by other soil organisms, particularly Pseudomonas (Hubbard et al., 1983), poor root colonization ability (Ahmad and Baker, 1987), and a tendency to miss the “window of opportunity” in colonizing newly emerging plant roots (Harman and Lumsden, 1990).
KeywordsBiological Control Biological Control Agent Soil Test Protoplast Fusion Antibiotic Production
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