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 (395 KB)

Title:

Modeling the relationship between extractable chlorophyll and SPAD-502 readings for endangered plant species research

Author: Hawkins, Tracy S.; Gardiner, Emile S.; Comer, Greg S.;

Date: 2009

Source: Journal for Nature Conservaiton 17. 125-129

Publication Series: Scientific Journal (JRNL)

Description:

Handheld chlorophyll meters have proven to be useful tools for rapid, nondestructive assessment of chlorophyll and nutrient status in various agricultural and arborescent plant species. We proposed that a SPAD-502 chlorophyll meter would provide valuable information when monitoring life cycle changes and intraspecific variation in endangered plant populations, whereby, destruction of plants to obtain this information is impractical. Further, use of this instrument would augment leaf
morphometric measurements collected during controlled studies, circumventing the need for leaf harvest. We developed a regression model relating foliar chlorophyll concentration and content to SPAD chlorophyll content indices for a genetically diverse population of the federally listed Lindera melissifolia. Application of the regression to four additional L. melissifolia populations, and to the ecologically widespread congener L. benzoin, proved the SPAD-502 to be an effective tool for
non-destructive estimation of total foliar chlorophyll concentration (r2 ¼ 0.8230) and content (r2 ¼ 0.9029) across a range of plant ages, growing conditions, and genotypes.

Keywords: Chlorophyll, Federally listed, Lauraceae, Lindera, Pondberry, SPAD-502, Spicebush

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:


Hawkins, Tracy S.; Gardiner, Emile S.; Comer, Greg S. 2009. Modeling the relationship between extractable chlorophyll and SPAD-502 readings for endangered plant species research. Journal for Nature Conservaiton 17:125-129.

 


 [ 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.