We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Efficacy of Trichoderma harzianum as a biological control of Fusarium oxysporum in container-grown Douglas-fir seedlings
- Authors
Wenny, D. L.; Dumroese, R. K.; Mousseaux, M. R.; Knudsen, G. R.; James, R. L.
- Abstract
Inoculating a soilless medium with encapsulated Trichoderma harzianum did not affect any aspect of Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seed germination or subsequent growth. Results of inoculating medium with a known pathogenic isolate of Fusarium oxysporum alone, or concurrently with T. harzianum, were the same: high levels of damping-off, low amounts of hypocotyl and root diseasein midsummer, and significant reductions in height growth. When seedling roots grew through T. harzianum inoculated medium before growinginto a mixture of T. harzianum--F. oxysporum-inoculated medium, mortality was reduced about 50%. Although contamination by resident Fusarium occurred, subsequent root colonization was significantly reduced in T. harzianum-amended growing medium.
- Subjects
FORESTS &; forestry
- Publication
New Forests, 1998, Vol 15, Issue 1, p11
- ISSN
0169-4286
- Publication type
Article