You are here: Home
/ Publication Information
Title: Family composition of Douglas-fir nursery stock as influenced by seed characters, mortality, and culling practices.
Author: St. Clair, J.B.; Adams, W.T.;
Source: New Forests. 7: 319-329
Publication Series: Miscellaneous Publication
Description: Changes in family composition during nursery production were evaluated by following individual seeds and seedlings of 36 wind-pollinated Douglas-fir (Pseudotsuga menziesii var. menziesii (Mirb.) Franco) families sown in mixture in two operational nurseries in western Washington and Oregon. Families differed significantly in emergence and in percent of seedlings culled for being too small. However, differences were small enough that family composition was largely unaffected. The observed changes in family composition did not markedly reduce genetic diversity and did not affect the genetic gain that may be expected from an improved population. The plantable nursery stock was, for the most part, representative of the composition of families originally sown.
Keywords: emergence, genetic diversity, genetic gain, nursery management, Pseudotsuga menziesii, seed weight
- 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
St. Clair, J.B.; Adams, W.T. 1993. Family composition of Douglas-fir nursery stock as influenced by seed characters, mortality, and culling practices. New Forests. 7: 319-329
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility