Abstract/Details

Ecophysiologie du pin blanc (Pinus strobus L.) en plantation soumis a des traitements sylvicoles intensifs

Boucher, Jean-Francois.  Universite Laval (Canada). ProQuest Dissertations Publishing, 1997. MQ25508.

Abstract (summary)

The impact of intensive silvicultural treatments and competition on leaf level morphological and physiological response of Pinus strobus L. saplings was studied. Herbicide application and scarification had a significant positive impact on eastern white pine saplings. The foliage of eastern white pine showed a certain capacity to acclimate to conditions of competition (and shade). Leaf nitrogen and leaf-dry mass per unit area were both driving variables for leaf level-photosynthetic capacity of saplings, whether there is competing vegetation or not. Soil temperature proved to be an important environmental factor for the establishment of young eastern white pine. The effects of foliar absorption of dew by eastern white pine seedlings were also investigated in a greenhouse experiment. Dew significantly increased shoot water potential, stomatal conductance and seedling root growth. This finding has practical implications for field studies of water relations of eastern white pine.

Indexing (details)


Subject
Botany;
Forestry
Classification
0478: Forestry
0479: Plant sciences
Identifier / keyword
Biological sciences; French and English text
Title
Ecophysiologie du pin blanc (Pinus strobus L.) en plantation soumis a des traitements sylvicoles intensifs
Author
Boucher, Jean-Francois
Number of pages
64
Degree date
1997
School code
0726
Source
MAI 36/04M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
978-0-612-25508-1
Advisor
Munson, Alison D.
University/institution
Universite Laval (Canada)
University location
Canada
Degree
M.Sc.
Source type
Dissertation or Thesis
Language
English, French
Document type
Dissertation/Thesis
Dissertation/thesis number
MQ25508
ProQuest document ID
304401899
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
https://www.proquest.com/docview/304401899/abstract