Skip to Main Content
An analysis of methods for the selection of trees from wild standsAuthor(s): F. Thomas Ledig
Source: Forest Science 20(1):2-16
Publication Series: Miscellaneous Publication
PDF: Download Publication (1.7 MB)
DescriptionThe commonly applied comparison-tree method of selection is analyzed as a form of within-family selection. If environmental variarion among comparison- and select-tree groups, c2, is a relatively small proportion (17 percent or less with 5 comparison trees) of the total variation, comparison-tree selection will result in less genetic improvement than individual-tree selection, Even if c2 is large, individual-tree selection may be more effective than comparison-tree selection if comparison and candidate trees are related. Estimates of c2 and of relationships among trees in wild stands derived mainly from published reports suggest that comparison-tree selection may in fact result in less genetic gain than individual-tree selection in many tree species. In any case, comparison-tree selection will seldom be much more effective than individual-tree selection. Development of allernate techniques for applying cite corrections in the selection of superior trees is suggested.
- 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.)
- 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.
CitationLedig, F. Thomas. 1976. An analysis of methods for the selection of trees from wild stands. Forest Science 20(1):2-16
KeywordsPinus rigida, base-line selection, phenotypic selection
- An analysis of phenotypic selection in natural stands of northern red oak (Quercus rubra L.)
- Resource selection by GPS-tagged California spotted owls in mixed-ownership forests
- Insect outbreak shifts the direction of selection from fast to slow growth rates in the long-lived conifer Pinus ponderosa
XML: View XML