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    Browsing by Subject "Black spruce"

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        Assessing above- and belowground competitive effects in pure and mixed stands of jack pine (Pinus banksiana) and black spruce (Picea mariana) 

        Cowie, Tamara (2009)
        Ecological principles of niche, competition and competitive reduction suggest that competition in mixed stands composed of pine and spruce may experience positive interactions through (1) vertical stratification of canopy ...
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        Assessment of black spruce portfolio trial survival and growth and implications for reforestation under climate change 

        Robinson, Stephanie (2018)
        The purpose of this study is to assess the performance of black spruce seedlings at a genetic trial designed to select seed sources adapted to several climate change scenarios. Height variability among trees is attributed ...
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        Early growth responses of black spruce seed sources selected for reforestation under climate change scenarios in Ontario 

        Nsiah, Samuel Kwadwo (2014)
        Study area : Northern boreal forest: (Northeastern - Sault Ste. Marie region) ; (Northwestern : Dryden and Kakabeka regions)
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        Ecologically-based taper equations for major tree species in Manitoba 

        Klos, Ryan James (2004)
        Kozak's variable exponent taper equation was fitted for balsam poplar (Populus balsamifera L.), trembling aspen (Populus tremuloides Michx.), white spruce (Picea glauca (Moench) Voss), black spruce (Picea mariana (Mill.) ...
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        Ecotypic variation of black spruce in northwestern Ontario 

        Antler, Julie I. (2020)
        The success of reforestation can be improved by selecting the appropriate seed source for the site type. However, not much is known about the differences in using upland versus lowland black spruce seed sources when ...
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        Effects of container volume and shape on the growth of black spruce (Picea mariana (Mill.) B.S.P.) seedlings 

        Sutherland, D. Craig (1984)
        The objective of this thesis was to evaluate the growth of black spruce seedlings in containers with four soil volumes (45, 90, 180, 360 cm3) and at three diameter/depth shapes (1:2, 1:3, 1:4). Seedling height, root collar ...
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        Effects of soil temperature on a coupled photosynthesis-stomatal conductance model for four boreal tree species 

        Cai, Tiebo (2000)
        In order to examine the effects of soil temperature on a coupled photosynthesis-stomatal conductance model, seedlings of trembling aspen (Populus tremuloides Michx), jack pine (Pinsu banksiana Lamb. ), black spruce (Picea ...
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        Establishment and early growth of black spruce (Picea mariana [Mill.] B.S.P.) in relation to selected nursery lifting and storage practices 

        Butson, Roger G. (1989)
        Problems associated with the establishment and early growth of overwinter frozen stored black spruce {Picea mariana [Mill.] B.S.P.) seedlings led to research on the effects of selected nursery lifting and storage practices ...
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        Evaluation of a mini-container accelerated transplant system : the black spruce winter crop 

        Wang, Zhang-Ming (1986)
        The effects of four factors on nine attributes of black spruce (Picea mariana (Mill) B. S. P.) seedlings were investigated. The seedlings were produced under an accelerated transplant system that used a 6 ml Castle ...
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        Evaluation of a mini-container, accelerated transplant system : the black spruce summer crop 

        Gonda, Hector Eduardo (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 ...
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        Genetic and environmental variation in seed, cone and progeny characteristics of black spruce clones in a northern Ontario seed orchard 

        Stoehr, Michael U. (1985)
        Genetic and environmental variance in cone and seed properties and early progeny growth of Picea mariana (Mill.) B.S.P. clones were evaluated using cones and seed from two to three ramets of 19 clones each growing in a ...
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        Interfamily variation in wood quality of black spruce in a northwestern Ontario progeny trial 

        Balogh, Istvan (2020)
        The right trees for replanting must be selected to ensure optimal future forest conditions. Based on desired future outcomes, various progenies can be selected to suit these needs. In Canada, black spruce (Picea mariana), ...
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        Mating system and population structure in a black spruce (Picea mariana (Mill.) B.S.P.) clonal seed orchard in Northwestern Ontario 

        Barrett, John (1985)
        Multi-locus enzyme systems were studied in a black spruce {Picea maniana (Mill.) B.S.P.) clonal seed orchard in northwestern Ontario. The embryonic and megagametophytic tissues of each clone were sampled and ...
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        Mechanical properties (MOE and MOR) of glulam 

        Green, Vanessa Demkowich (2017)
        Glue-laminated (glulam) timber has strong mechanical properties and is a great building material. It is composed of small diameter wood. There has been a shortage of large dimensional lumber for construction projects. ...
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        Modelling the radial and longitudinal variation in wood density and its sensitivity to climate in black spruce (Picea mariana (Mill.) B.S.P.) 

        Xiang, Wei (2014-01-22)
        Wood density variation affects structural timber performance and is correlated with different sources (genetic diversity, stand dynamics and climatic effects) which, to date, have not been comprehensively quantified in ...
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        Plus-tree selection of black spruce in Northwestern Ontario for Superior growing space efficiency 

        Van Damme, Laird (1985)
        Plus-tree selection of black spruce [Picea mariana (Mill.) B.S.P.) based on increment of wood volume per unit of crown (growing space efficiency) has the potential to improve yield per hectare and avoid biased selection ...
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        Quantitative metrics of deadwood decay classes as a function of moisture regime and tree species 

        Leeson, Emmarie (2017)
        The patterns and rates of decomposition of dead woody debris (DWD) in the boreal ecosystem throughout the wood decay process have been hypothesized to vary across moisture regimes and between species. A fundamental aspect ...
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        Understory ingrowth mortality model for black spruce (Picea mariana (Mill.) B.S.P.) in mixed species stands of boreal Ontario 

        Innerd, W. R. Andrew (Wilfred Robert Andrew) (2006)
        Study area : Longlac area (Northwestern Ontario)
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        Varying food quality and its influence on spruce budworm growth, development, and fecundity 

        Vescio, Shelley Ann (1995)
        These studies assess how changing food quality influences spruce budworm, Choristoneura fumiferana (Clem.), in terms of the performance characteristics of survival, development, growth, and fecundity. The components of ...
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        Vegetative and sexual phenology, reproductive dynamics and bud differentiation in a clonal seed orchard of white and black spruce 

        O'Reilly, Conor (1981)
        To evaluate the importance of phenology and strobilus production in a clonal seed orchard of white and black spruce, 14 clones of each species represented by 4 ramets each, were selected from the Mattawin seed orchard. ...

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