Results 131 to 140 of about 382,176 (172)
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The Influence of Temperature and Precipitation on Picea Mariana at Treeline
1988Bachelor of Arts (BA)
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2014
This review summarizes information on the general ecology and fire ecology of black spruce that was available in the scientific literature as of 2014. Details and documentation of source materials follow this summary. Introductory: The Introductory section discusses the taxonomy of black spruce,
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This review summarizes information on the general ecology and fire ecology of black spruce that was available in the scientific literature as of 2014. Details and documentation of source materials follow this summary. Introductory: The Introductory section discusses the taxonomy of black spruce,
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Volume increment efficiency of Picea mariana in northern Ontario, Canada
Forest Ecology and Management, 2008Abstract Volume increment efficiency (VIE), a measure related to radiation use efficiency, is defined in this study as the annual total stemwood volume increment divided by the amount of global shortwave radiation intercepted by tree crowns during the photosynthetic season.
Arthur Groot, Jean-Pierre Saucier
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The taxonomy and genetics of Picea rubens and its relationship to Picea mariana
Canadian Journal of Botany, 1976A range-wide sampling of Picea rubens Sarg. populations with a representative sampling of Picea mariana (Mill.) B.S.P. was made to investigate the variation within P. rubens and the nature and extent of hybridization between the two species. Factor analysis using 14, 21, and 24 characters, successively, indicated that the clusters of the parent ...
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Plant Cell Reports, 1993
Interior spruce (Picea glauca engelmannii complex) and black spruce (Picea mariana Mill.) cotyledonary somatic embryos were encapsulated in sodium alginate. Somatic embryo viability was retained, but germination occurred at a reduced frequency compared with the equivalent zygotic embryos.
Lulsdorf, Monika M. +4 more
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Interior spruce (Picea glauca engelmannii complex) and black spruce (Picea mariana Mill.) cotyledonary somatic embryos were encapsulated in sodium alginate. Somatic embryo viability was retained, but germination occurred at a reduced frequency compared with the equivalent zygotic embryos.
Lulsdorf, Monika M. +4 more
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Canadian Journal of Botany, 1967
The leaf oils from white and black spruce obtained from different locations in Western and Eastern Canada, Michigan, and Minnesota, have been analyzed by gas liquid chromatography. Both species were found to have a remarkably consistent and distinctive distribution pattern of the leaf oil terpenes. The quantitative variations encountered in samples of
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The leaf oils from white and black spruce obtained from different locations in Western and Eastern Canada, Michigan, and Minnesota, have been analyzed by gas liquid chromatography. Both species were found to have a remarkably consistent and distinctive distribution pattern of the leaf oil terpenes. The quantitative variations encountered in samples of
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Wood Science and Technology, 2015
Borate distribution and content in re-wetted brush-treated Eastern black spruce (Picea mariana var. mariana) blocks were investigated by near-infrared spectroscopy (NIRS). Samples were brush-treated with 40 % glycerol-based DOT (Na2B8O13 4H2O) and then conditioned for different durations (5, 9, 20, and 30 days) at high relative humidity (approaching ...
Thierry Koumbi-Mounanga +5 more
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Borate distribution and content in re-wetted brush-treated Eastern black spruce (Picea mariana var. mariana) blocks were investigated by near-infrared spectroscopy (NIRS). Samples were brush-treated with 40 % glycerol-based DOT (Na2B8O13 4H2O) and then conditioned for different durations (5, 9, 20, and 30 days) at high relative humidity (approaching ...
Thierry Koumbi-Mounanga +5 more
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Trees, 2013
After 3 years of CO 2 treatments, A stimulation from ambient to elevated CO 2 was strongly related to the total dry mass change (%), supporting the sink demand
John E. Major +4 more
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After 3 years of CO 2 treatments, A stimulation from ambient to elevated CO 2 was strongly related to the total dry mass change (%), supporting the sink demand
John E. Major +4 more
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Trees, 2007
Nutrient- and water economy-related traits in plants have significant implications for growth and fitness. We explored, examined, and compared nutrient concentrations, use efficiencies, assimilation, and informative isotopic elements in a seedling provenance experiment, and in seedling and mature tree controlled-cross hybrid experiments of red spruce ...
John E. Major +3 more
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Nutrient- and water economy-related traits in plants have significant implications for growth and fitness. We explored, examined, and compared nutrient concentrations, use efficiencies, assimilation, and informative isotopic elements in a seedling provenance experiment, and in seedling and mature tree controlled-cross hybrid experiments of red spruce ...
John E. Major +3 more
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Allelopathic potential of Kalmia angustifolia to black spruce (Picea mariana)
Forest Ecology and Management, 1987Abstract Effects of water extracts of leaves, root, litter and soil of Kalmia angustifolia were tested on seed germination and primary root and shoot development of black spruce seedlings. Litter and soil extracts were found to be most inhibitory to primary root development.
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