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Now showing items 151-160 of 205
Crown dynamics in Pinus resinosa Ait. : analysis and stochastic description of branch production, branch extension growth and foliage dry weight---branch length relationships
(1981)
The development of the crown structure of Pinus
resinosa Ait. was analysed in terms of three component
processes of tree growth: the number of first order
branches per whorl within the crown, the annual extension
increments ...
Spatial genetic structure within four tamarack (Larix laricina (Du Roi) K. Koch) populations in Northwestern Ontario
(1989)
This study was conducted to test the null hypothesis
that tamarack (Larix laricina (Du Roi) K. Koch) populations
are random assemblages of genotypes, and that this absence
of pattern can be observed on sites with ...
Upland boreal forest northwest of Thunder Bay, Ontario : ecology and applications to silviculture
(1984)
Multivariate phytosociological methods were used
to investigate the ecology of upland boreal forest
stands. The ecological information was used to derive
silvicultural recommendations. The boreal forest stands
did not ...
Pollen pool heterogeneity in jack pine (Pinus banksiana Lamb.) : a problem for estimating population outcrossing rate?
(1990)
Pollen pool heterogeneity, which violates an assumption
of the mixed-mating model, is one of the major problems
facing population geneticists concerned with measuring
plant mating systems. In the present study, isozyme ...
Ten-year growth response of 45-year old Pinus banksiana Lamb. to urea fertilization and low thinning
(1982)
The objectives of this investigation were 1) to examine
the duration and pattern of jack pine growth response to urea
fertilization and low thinning, and 2) to examine methods commonly
used in the measurement of ...
Evaluation of a mini-container, accelerated transplant system : the black spruce summer crop
(1986)
The production of black spruce ( Picea mariana (Mill.)
B.S.P.) bare root stock in Ontario nurseries presents two
main problems. First, seedlings at the end of the first
growing season are small, and thus susceptible to ...
Aspects of the vegetation, hydrology, water chemistry and microclimate of Barclay's Bog, Northwestern Ontario
(1989)
Barclay's Bog is located approx. 40 km. north of Thunder Bay, Northwestern Ontario and borders the Hawkeye Lake Watershed Study Site.
Post logging succession and vegetation management with hexazinone herbicide in Picea glauca (Moench) Voss-Populus tremuloides Michx. forest
(1981)
The objectives were: to review the successional behaviour of
white spruce (Picea glauca (Moench) Voss) - trembling aspen (Populus
tremuloides Michxt) stands in the literature, to conduct field studies
of the successional ...
Root pruning, wrenching and overwinter cold storage : effects on the morphological and physiological condition of transplant Picea glauca [Moench] Voss nursery stock
(1984)
The objectives of this thesis were to; 1) evaluate the
effect of a single early spring root pruning followed by a
series of five root wrenching treatments at three week
intervals on the morphological condition of rising ...
Investment modelling in red pine (Pinus resinosa Ait.) plantations
(1987)
The objective of this study was to develop a microcomputer-based planning model for guiding individual investors in choosing between alternative forestry investments as well as other nonforestry investments in the Thunder ...