Forest Investment Account (FIA) - Forest Science Program
FIA Project Y051110

    Evaluating the protocol for quantifying pollen contamination on the genetic worth of conifer seed orchards - annual technical report
Contributing Authors: Webber, Joe E.; Stoehr, Michael U.
Imprint: B.C. ProSeed Consulting, 2005
Subject: Forest Investment Account (FIA), Conifers, Propagation, Genetics
Series: Forest Investment Account (FIA) - Forest Science Program
Since all conifers are wind pollinated, orchards located within the natural range of the species are susceptible to non-orchard sources of pollen (contamination). Contaminate pollen is considered to have a negative effect on both the orchardís estimated genetic worth of the improved trait (for example growth) and the adaptive potential of seed orchard progeny. The objective of this first year project was to measure the extent and magnitude of Douglas-fir pollen contamination in two contrasting orchard sites on Vancouver Island. The mean level of contamination in the two coastal Douglas-fir seed orchards ranged from a low of 1.3% to a high of 100%.
Joe Webber and Michael Stoehr.
Related projects:  FSP_Y062110FSP_Y073110


Final Report (49Kb)

To view PDF documents you need Adobe Acrobat Reader, available free from the Adobe Web Site.

Updated August 16, 2010 

Search for other  FIA reports or other Ministry of Forests and Range publications.

Please direct questions or comments regarding publications to