Fertilization impacts on Swiss needle cast disease severity in western Oregon Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/g732d9527

This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at:  http://www.journals.elsevier.com/forest-ecology-and-management/. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The influence of fertilization on disease severity is unknown in most forest pathosystems. Fertilization treatments were randomly applied to 0.01 ha plots centered on individual dominant or co-dominant Douglas-fir trees in ten Douglas-fir stands from coastal Oregon to the foothills of the Oregon Cascade Range, USA. This region is affected by Swiss needle cast, caused by the fungal pathogen Phaeocryptopus gaeumannii. Selected stands represented a range of Swiss needle cast disease severity, and 10 replications of each fertilization treatment were applied in each stand. The six treatments included nitrogen (urea), calcium as lime (calcium carbonate), calcium as calcium chloride, phosphorus (monosodium phosphate), a site-specific blend (Kinsey) and an unfertilized control. Fertilization took place from February–April 2007, and single branches were collected from treated trees for disease severity assessment of foliage in May 2010. Disease severity of 1- and 2-year-old needles was evaluated by counting the frequency of infected needles and the density of P. gaeumannii fruiting bodies (pseudothecia) on a random subset of needles from each tree and needle age class. Fertilization treatment effects on infection index (mean fruiting body density) were tested by mixed-effects models that accounted for site as a blocking factor. Treatment effects on infection index at each of the study locations were also tested by ten separate ANOVAs. Across and within sites, fertilization treatment did not significantly affect infection index of 1- or 2-year old needles (p > 0.05). Small differences in mean fruiting body density (⩽3%) between fertilization and control treatments across sites were not statistically significant, nor are they believed to be biologically or economically significant. Decisions regarding fertilization should be based on site-specific attributes, such as soil chemistry. There is no evidence that fertilization directly ameliorates or exacerbates Swiss needle cast severity in western Oregon.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Mulvey, R. L., Shaw, D. C., & Maguire, D. A. (2013). Fertilization impacts on swiss needle cast disease severity in western oregon. Forest Ecology and Management, 287, 147. doi: 10.1016/j.foreco.2012.08.050
Academic Affiliation
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deanne Bruner (deanne.bruner@oregonstate.edu) on 2013-01-29T22:29:41Z No. of bitstreams: 1 ShawDavidForestryFertilizationImpactsSwiss.pdf: 651947 bytes, checksum: 2a1cbdff83a5bb15c92c0ac4f281d041 (MD5)
  • description.provenance : Approved for entry into archive by Deanne Bruner(deanne.bruner@oregonstate.edu) on 2013-01-29T22:30:31Z (GMT) No. of bitstreams: 1 ShawDavidForestryFertilizationImpactsSwiss.pdf: 651947 bytes, checksum: 2a1cbdff83a5bb15c92c0ac4f281d041 (MD5)
  • description.provenance : Made available in DSpace on 2013-01-29T22:30:31Z (GMT). No. of bitstreams: 1 ShawDavidForestryFertilizationImpactsSwiss.pdf: 651947 bytes, checksum: 2a1cbdff83a5bb15c92c0ac4f281d041 (MD5) Previous issue date: 2013-01-01

Relationships

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

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items