Skip to Main Content
Associations between heterozygosity and growth rate variables in three western forest treesAuthor(s): Jeffry B. Milton; Peggy Knowles; Kareen B. Sturgeon; Yan B. Linhart; Martha Davis
Source: Gen. Tech. Rep. PSW-GTR-48. Berkeley, CA: Pacific Southwest Forest and Range Exp. Stn, Forest Service, U.S. Department of Agriculture: p. 27-34
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
PDF: View PDF (319 KB)
DescriptionFor each of three species, quaking aspen, ponderosa pine, and lodgepole pine, we determined the relationships between a ranking of heterozygosity of individuals and measures of growth rate. Genetic variation was assayed by starch gel electrophoresis of enzymes. Growth rates were characterized by the mean, standard deviation, logarithm of the variance, and coefficient of variation of annual ring widths measured from cores. In aspen, heterozygosity was associated with high mean growth rate, but in ponderosa and lodgepole pines heterozygosity was not associated with mean growth rate. High levels of heterozygosity were associated with high growth variability in aspen and ponderosa pine, and with low growth variability in lodgepole pine.
- 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.
CitationMilton, Jeffry B.; Knowles, Peggy; Sturgeon, Kareen B.; Linhart, Yan B. ; Davis, Martha. 1981. Associations between heterozygosity and growth rate variables in three western forest trees. Gen. Tech. Rep. PSW-GTR-48. Berkeley, CA: Pacific Southwest Forest and Range Exp. Stn, Forest Service, U.S. Department of Agriculture: p. 27-34
- Do pine trees in aspen stands increase bird diversity?
- Regional forest landscape restoration priorities: Integrating historical conditions and an uncertain future in the northern Rocky Mountains
- Habitat of birds in ponderosa pine and aspen/birch forest in the Black Hills, South Dakota
XML: View XML