Skip to page content
USDA Forest Service

Research & Development Treesearch

Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help - We Participate  Government Made Easy

Global Forest Information Service

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

(202) 205-8333

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

Publication Information

View PDF (732 KB)

Title: Leaf area and net photosynthesis during development of Prunus serotina seedlings

Author: Horsley, Stephen B.; Gottschalk, Kurt W.;

Date: 1993

Source: Tree Physiology. 12: 55-69.

Publication Series: Scientific Journal (JRNL)

Description: We used the plastochron index to study the relationship between plant age, leaf age and development,
and net photosynthesis of black cherry (Prtmus serotina Ehrh.) seedlings. Leaf area and net photosynthesis
were measured on all leaves >=75 mm of plants ranging in age from 7 to 20 plastochrons. Effects
of plant developmental stage on leaf area and net photosynthesis were evaluated for leaves of differing
age (horizontal series), leaves on plants of constant age (vertical senes), and leaves of constant age
(oblique series). Regression techniques were used to estimate leaf area from leaf blade dimensions. The
best equations for predicting leaf area had R2 values of 0.991-0.992 and used linear or logarithmic
functions of both leaf length and width. Suitable. but less precise, equations with R2 values of
0.946-0.962 were developed from either leaf length or leaf width. Leaf area development in black
cherry seedlings was similar to that in other indeterminate species. Leaves of young plants reached full
expansion at a lower leaf plastochron age than leaves of older plants. Maximum net photosynthesis per
unit leaf area occurred 2-3 plastochrons before full leaf expansion. There was strong ontogenetic drift
in net photosynthesis with leaf age; net photosynthesis decreased as plant age increased in leaves of the
same plaslochron age. Plots of the oblique series were particularly useful in providing infomlation about
interaction effects.

Keywords: developmental stage, leafage, leaf area. plastochron index, regression models, seedling survival

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.
  • This publication may be available in hard copy. Check the Northern Research Station web site to request a printed copy of this publication.
  • Our on-line publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact Sharon Hobrla, if you notice any errors which make this publication unusable.



Horsley, Stephen B.; Gottschalk, Kurt W. 1993. Leaf area and net photosynthesis during development of Prunus serotina seedlings. Tree Physiology. 12: 55-69.


 [ 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.