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 (604 KB bytes)

Title: Food reserves and seasonal growth of Douglas-fir seedlings.

Author: Krueger, Kenneth W.; Trappe, James M.;

Date: 1967

Source: Forest Science. 13(2): 192-202.

Publication Series: Scientific Journal (JRNL)

Description: Seasonal growth of tops and roots and concomitant trends in food reserves were observed biweekly on Peudotsuga menzisii (Mirb.) Franco seedlings of two seed sources growing in a Pacific Northwest forest nursery. A general pattern of alternating root, diameter, and shoot growth was found. Rapid root growth did not coincide with rapid shoot elongation, but preceded and followed it. Increased root activity was strongly correlated with lowered reducing sugar concentrations in seedling roots of the faster growing source. Sucrose and raft]nose increased markedly during early winter and were apparently converted to starch in spring prior to growth. Concentrations of reducing sugars, crude fat, and protein nitrogen changed little with season. Implications of this information on timing of lifting, storage, and transplanting of seedlings are discussed.

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:


Krueger, Kenneth W.; Trappe, James M. 1967. Food reserves and seasonal growth of Douglas-fir seedlings. Forest Science. 13(2): 192-202.

 


 [ 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.