Skip to main content

Heat-Pulse Velocity and Bordered Pit Condition in Living Engelmann Spruce and Lodgepole Pine Trees

Buy Article:

$29.50 plus tax (Refund Policy)


The purpose of this study was to correlate sap movement and ultrastructure of wood. Heat-pulse velocity measurements indicated a low flow in the vicinity of the cambium, a peak flow in the region from 30 to 42 mm from the cambium, and a tailing off of flow as the distance from the cambium increased. Bordered pits located in the area of peak sap movement were not aspirated and were only partially incrusted. Pits located in the area of low flow near the cambium were immature and nearly imperforate, whereas those in the area of low flow deep within the trees showed a high frequency of aspiration or nearly complete incrustation. Forest Sci. 19:291-296.

Keywords: Bordered-pit membrane; carbon replica

Document Type: Journal Article

Affiliations: Associate Professor, Department of Forest and Wood Sciences, Colorado State University

Publication date: December 1, 1973

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