Diseases associated with whitebark pine seedling production, USDA Forest Service Nursery, Coeur d'Alene, Idaho Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/6w924d05r

Whitebark pine is an important reforestation species in the northern Rocky Mountains for enhancement of wildlife habitat. Production of container-grown whitebark pine seedlings at the USDA Forest Service Nursery in Coeur d'Alene, Idaho has been increasing the past several years. Diseases continue to be an important limiting factor in seedling production. Recent evaluations implicated Fusarium solani and F. proliferatum as important pathogens of young germinants and seedlings. Both fungal species commonly contaminated whitebark pine seed prior to sowing. Pathogen spread during stratification resulted in very high levels of seed contamination. Fusarium spp. adversely affected seed germination as well as initiated high seedling disease levels. Not all seedlots were equally affected by diseases, even though most seeds were contaminated. Seedling vigor, probably related to seed germinative energy, may have been an important factor affecting disease severity. Efforts to reduce contamination by mechanical brushing or treatments with hydrogen peroxide or bleach solutions were ineffective. Seed-borne inoculum is important in disease epidemiology. Improved techniques to reduce level of pathogen contamination and spread during seed processing are required.

Descriptions

Attribute NameValues
Creator
Resource Type
Date Available
Date Issued
Series
Subject
Rights Statement
Publisher
Language
File Format
File Extent
  • 3248708 bytes
Digitization Specifications
  • Scanned at 600 DPI using a Cannon DR-9080C in TIF format. PDF generated through Capture Perfect using OmniPage Professional 15 for textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Adam Powell (powella@onid.orst.edu) on 2007-01-12T19:57:57Z No. of bitstreams: 1 no. 00-08_ocr.pdf: 3248708 bytes, checksum: 0f824e6deff813387852def347b18ada (MD5)
  • description.provenance : Made available in DSpace on 2007-01-23T16:46:24Z (GMT). No. of bitstreams: 1 no. 00-08_ocr.pdf: 3248708 bytes, checksum: 0f824e6deff813387852def347b18ada (MD5) Previous issue date: 2000-05
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2007-01-19T17:14:34Z (GMT) No. of bitstreams: 1 no. 00-08_ocr.pdf: 3248708 bytes, checksum: 0f824e6deff813387852def347b18ada (MD5)
  • description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2007-01-23T16:46:23Z (GMT) No. of bitstreams: 1 no. 00-08_ocr.pdf: 3248708 bytes, checksum: 0f824e6deff813387852def347b18ada (MD5)

Relationships

In Administrative Set:
Last modified: 07/19/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items