Occurrence of Fusarium on Conifer Tree Seed from Northern Rocky Mountain Nurseries


Fusarium app. are common colonizers of conifer seed from northern Rocky Mountain nurseries. Assays of ponderosa pine, Douglas-fir, western larch, and spruce seeds indicate great variability in extent of contamination among seedlots. In some spruce seedlots almost 90 percent of the seeds tested were colonized by Fusarium most seedlots of other species were much less contaminated. Fusaria are commonly found both on the seedcoat and within the endosperm of colonized seed. Seven species of Fusarium have thus far been isolated from seed, although F. oxyagorum was encountered most frequently. Types of diseases associated with aeedborne fusaria and techniques used to reduce levels of seed contamination are discussed.
PDF details
Download this file
Publication Forest Nursery Proceedings
Event Tumwater, WA - 1986
Author R. L. James
Published 1986/08/12
** PDF Files require the Adobe Acrobat Reader.

Use the key word search found below to quickly locate resources about a specific topic.
For more advanced searching options, try the Advanced Search.
Search Tree Planters Notes
If you can read this text, it means you are not experiencing the RNGR design at its best. RNGR makes heavy use of CSS, which means it is accessible to any internet browser, but the design needs a standards-compliant browser represent the intended look. Just so you know ;)