Abstract/Details

Effet de l'intensité et du moment de la coupe sur la teneur en taxanes, la masse et la longueur de la repousse de l'if du Canada (Taxus canadensis marsh.) un an après la coupe

Daigle, Richard. 
 Universite Laval (Canada) ProQuest Dissertations Publishing,  2004. MQ92180.

Abstract (summary)

Despite increasing harvest pressure for taxanes, Canada yew's growth and physiology have been poorly studied yet. This study characterised Canada yew's response following different harvest intensities. A factorial experiment was held in Duchesnay, Quebec. Four harvest intensities and 3 timings were tested. Needle taxane concentrations were lower when harvested in June. One year after harvest, the annual shoot mass near the cut site was 11.8 times lower than for controls. The differences among groups were less important for the total annual shoot mass, but the values still diminished with increasing harvest intensity. We suggest to follow the Quebec provincial norm and to harvest during the fall season in order to maximise taxane yield. A harvesting technique which would spread damage among younger, but more numerous twigs should be tested in order to allow faster biomass recovery the following years.

Indexing (details)


Subject
Botany;
Forestry
Classification
0478: Forestry
0479: Plant sciences
Identifier / keyword
Biological sciences; French and English text
Title
Effet de l'intensité et du moment de la coupe sur la teneur en taxanes, la masse et la longueur de la repousse de l'if du Canada (Taxus canadensis marsh.) un an après la coupe
Author
Daigle, Richard
Number of pages
75
Degree date
2004
School code
0726
Source
MAI 43/01M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
978-0-612-92180-1
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
MQ92180
ProQuest document ID
305093074
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
https://www.proquest.com/docview/305093074/abstract