You are here: Home
/ Publication Information
Title: Genotype * environment interaction: a case study for Douglas-fir in western Oregon.
Author: Campbell, Robert K.;
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)
Description: Unrecognized 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.
Keywords: Pseudotsuga menziesii, genetic variation, tree height, stability, AMMI model, Eberhardt-Russell coefficients
- 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.
- You may send email to email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Campbell, 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
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility