Skip to main content

Time Trends in Genetic Control of Height Growth in Ponderosa Pine

Buy Article:

$29.50 plus tax (Refund Policy)


Height growth in ponderosa pine plantation with 71 families in 7 elevational zone sources was analyzed at ages 3, 5, 7, 8, 12, 20, 25, and 29. Height growth varied by seed source zone and by family within zone. Zonal variances were well established at an early age, and the differences were maintained with minor variations through the study period. Family variances were smaller than zonal and environmental variances, the differences were not well correlated between the earlier and later phases, and the correlations were sometimes negative. Three observed growth phases, related to ecological dominance and competition, affected the levels of variance attributable to genetics and environment. Forest Sci. 22:2-12.

Keywords: Pinus ponderosa; elevation effects; genetic variation; geographic variation; tree growth

Document Type: Journal Article

Affiliations: Geneticist, Pacific Southwest Forest & Range Exp. Stn., Forest Service, USDA, Berkeley, California

Publication date: March 1, 1976

More about this publication?
  • Membership Information
  • ingentaconnect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more