Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (218 KB)

Title: Geographic variation in ponderosa pine leader growth

Author: Hanover, James W.;

Date: 1963

Source: Forest Science. 9(1): 86-95.

Publication Series: Scientific Journal (JRNL)

Description: Growth of the shoot apices of 91 trees in a 45-year-old Pinus ponderosa Laws. provenance test was measured periodically with a transit. Analysis of the measurements led to the following conclusions: (1) 19 races of ponderosa pine planted near Priest River, Idaho, showed phenological, morphological, or physiological variation in six characters: date of beginning growth in the spring, date of ending growth, total seasonal elongation, duration of growth, length of dormant terminal bud, and rapidity of growth; (2) the variation described is continuous, although it was not possible to associate an environmental gradient to the variation pattern; (3) all trees except the local Kaniksu source achieved their maximum surge of growth during the same 7-day period, May 20-27, and this response closely paralleled temperature fluctuation; (4) simple correlations among the 19 progenies between total seasonal elongation and either beginning date, relative rapidity, or duration of growth were not significant. Correlation between dormant terminal bud length and total seasonal elongation was strong. Also, bud length was positively correlated with relative rapidity which was negatively correlated with duration of growth.

Keywords: ponderosa pine, Pinus ponderosa, growth

Publication Notes:

  • 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.

XML: View XML

Citation:


Hanover, James W. 1963. Geographic variation in ponderosa pine leader growth. Forest Science. 9(1): 86-95.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.