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Pathogenicity of Fusarium Isolates from Douglas-fir Seed and Container-Grown Seedlings Item Info
![Twenty Fusarium isolates from Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seed and seedlings were evaluated for their effects on Douglas-fir seed germination, post-emergence damping-off, and seedling root disease. Inoculum consisting of perlite: cornmeal colonized with fungal isolates was mixed into peat: vermiculite growing medium then seed was sown or seedlings transplanted into the mixture. A wide range of virulence occurred in populations of Fusarium isolated from Douglas-fir. Several isolates were consistently the more virulent. As a group, F.oxysporum isolates were more virulent that F. 'roseum' isolates, although some F. oxysporum isolates were quite virulent. Test isolates of F. sambucinum were not virulent. Both source of isolation (healthy versus diseased seed or seedlings) and species of Fusarium were unreliable predictors of potential virulence.](https://objects.lib.uidaho.edu/fwres/small/fwres184_sm.jpg)
- Title:
- Pathogenicity of Fusarium Isolates from Douglas-fir Seed and Container-Grown Seedlings
- Authors:
- James, Robert L. Dumroese, R. Kasten Gilligan, Carma J. Wenny, David L.
- Date Created:
- 1989-08-01
- Description:
- Twenty Fusarium isolates from Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seed and seedlings were evaluated for their effects on Douglas-fir seed germination, post-emergence damping-off, and seedling root disease. Inoculum consisting of perlite: cornmeal colonized with fungal isolates was mixed into peat: vermiculite growing medium then seed was sown or seedlings transplanted into the mixture. A wide range of virulence occurred in populations of Fusarium isolated from Douglas-fir. Several isolates were consistently the more virulent. As a group, F.oxysporum isolates were more virulent that F. 'roseum' isolates, although some F. oxysporum isolates were quite virulent. Test isolates of F. sambucinum were not virulent. Both source of isolation (healthy versus diseased seed or seedlings) and species of Fusarium were unreliable predictors of potential virulence.
- Relation:
- Bulletin - Number 52, August 1989
- Source:
- Idaho SD12.I2 U47, University of Idaho Library Special Collections and Archives, http://www.lib.uidaho.edu/special-collections/
- Type:
- Text
- Format:
- application/pdf
Source
- Preferred Citation:
- "Pathogenicity of Fusarium Isolates from Douglas-fir Seed and Container-Grown Seedlings", Idaho Forest, Wildlife, and Range Experiment Station Collection, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/fwres/items/fwres184.html
Rights
- Rights:
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- Standardized Rights:
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