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Shigometer and electrical resistance studies of paper birch
(1990)
The Shigometer was evaluated as an instrument for detecting
red heart of paper birch. The Shigometer accurately detected the
presence of red heart at a 50% decrease from the maximum reading
rule but sometimes failed to ...
Effect of photoperiod on apical growth cessation in tamarack (Larix laricina) and balsam poplar (Populus balsamifera) provenances from northern Ontario
(1990)
The effects of four photoperiods (i.e. 6, 10, 14, and 18 hours) on the rate of apical
growth cessation and apical bud primordia production were studied in controlled
environment experiments using tamarack {Larix laricina ...
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 ...
Econometric model of Canada's newsprint exports to the United States of America
(1990)
An econometric model was built for predictive purposes and
for understanding the relationship between the US market and
Canadian newsprint producers. In this study, a
simultaneous-equation model was developed, which ...
Effects of Laccaria proxima and fibrous pulp wastes on the growth of container-grown conifers
(1990)
Nine conifer species, Japanese larch {Larix
kaempferi), white spruce (Picea glauca) , black spruce (P.
mariana), red spruce (P. rubens), jack pine (Pinus
banksiana), mugo pine (P. mugo), red pine (P.
resinosa),Japanese ...
Phenotypic variation in cone and needle characters of Pinus banksiana Lamb. (jack pine) in Northwestern Ontario
(1990)
To assess the patterns of phenotypic variation in cone and
needle characters of jack pine relative to spatial, climatic and
ecological data, collections were made from ten trees in each of 64
sites in northwestern ...
Study of Chondrostereum purpureum and its role in the decline of white birch in Thunder Bay
(1990)
Various aspects of the biology of Chondrostereum
purpureum (Pers.:Fr.) Pouz. and its role in dieback and
decline of white birch (Betula papyrifera Marsh.) were
studied. (1) Sixty-nine trees which exhibited symptoms ...
Variation of syllepsis in eleven tamarack [Larix laricina (Du Roi) K. Koch] provenances in Northwestern Ontario and its relation with height growth
(1990)
Variation in syllepsis of tamarack and its relationship to juvenile height
growth in eleven tamarack provenances from northwestern Ontario was
evaluated in a four-year-old clonal test planted at Thunder Bay, Ontario.
...
Structure, biomass production and dynamics of four white spruce (Picea glauca [Moench] Voss) plantations near Thunder Bay, Ontario
(1990)
Stand structure, biomass production and dynamics of
white spruce (Picea glauca (Moench) Voss) were investigated
in four plantations, ages 4, 10, 18, and 28 years,
respectively, on similar lacustrine soils. Dry ...
Frost hardiness of balsam poplar (Populus balsamifera L.) during the spring dehardening period
(1990)
Changes in the frost hardiness of balsam poplar (Populus balsamifera L.)
cuttings from four populations along a latitudinal transect from N. Wisconsin to
Bearskin L, Ontario, were examined during the spring of 1987. ...