Skip to Main Content
Due to a lapse in federal funding, this USDA website will not be actively updated. Once funding has been reestablished, online operations will continue.
Genotype * environment interaction: a case study for Douglas-fir in western Oregon.Author(s): Robert K. Campbell
Source: Res. Pap. PNW-RP-455. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
View PDF (988 KB)
DescriptionUnrecognized genotype x environment interactions (g,e) can bias genetic-gain predictions and models for predicting growth dynamics or species perturbations by global climate change. This study tested six sets of families in 10 plantation sites in a 78-thousand-hectare breeding zone. Plantation differences accounted for 71 percent of sums of squares (15-year heights), replications an additional 4.4 percent, families 1.9 percent, the first principal component of interaction effects 3.5 percent, and the second principal component 1.2 percent. Results in this study and in a larger survey (87 sets in 10 breeding zones) were similar: 51 percent of sets indicated significant g*e. In 46 percent of sets, the g*e interaction-family variance ratio was greater than 1; in 35 percent, greater than 1.5; and in 10 percent, greater than 5.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCampbell, Robert K. 1992. Genotype * environment interaction: a case study for Douglas-fir in western Oregon. Res. Pap. PNW-RP-455. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p
KeywordsPseudotsuga menziesii, genetic variation, tree height, stability, AMMI model, Eberhardt-Russell coefficients
- Geomorphic and riparian forest influences on characteristics of large wood and large-wood jams in old-growth and second-growth forests in Northern Michigan, USA
- Volume growth and response to thinning and fertilizing of Douglas-fir stands in southwestern Oregon.
- Yields in high density, short rotation intensive culture (SRIC)—plantations of Eucalyptus and Other Hardwood Species
XML: View XML