Published In

Environmental and experimental botany

Document Type

Article

Publication Date

2-1999

Subjects

Acclimatization (Plants), Douglas fir -- Growth -- Effect of, Douglas fir -- Climatic factors, Global temperature changes

Abstract

Pseudotsuga menziesii (Douglas-fir) saplings were grown in sun-lit controlled environment chambers at ambient or elevated (4°C above ambient) temperature. We measured internal temperatures of vegetative buds with thermocouple probes and compared temperatures of normal buds and abnormal buds with loosened, rosetted outer scales in elevated temperature chambers. The abnormal buds had higher and earlier peak daily temperatures than normal buds. Elevated temperature may influence the internal temperature of buds and contribute to the development of abnormal, rosetted buds with loosened outer scales. Abnormal bud development may alter branching patterns and allometry of Douglas-fir trees subjected to climatic change.

Description

The information in this document has been funded wholly (or in part) by the US Environmental Protection Agency. It has been subjected to the Agency’s peer and administrative review, and it has been approved for publication as an EPA document.

This work was authored as part of the Contributor's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.

The published article is copyrighted by Elsevier and can be found at: http://dx.doi.org/10.1016/S0098-8472(98)00046-X

DOI

dx.doi.org/10.1016/S0098-8472(98)00046-X

Persistent Identifier

http://archives.pdx.edu/ds/psu/12658