Tree Seedling Growth at Different Soil Temperatures
The effect of soil temperature on shoot and root development was investigated for three conifers and two broadleaved species. Plants were raised from seed through two 8-week stages in environmental chambers with soil temperatures controlled in constant-temperature water baths. Soil temperatures were 15, 19, 23, 27, and 31°C and soil moisture between 0.1 and 1.5 bars soil water suction. Other environmental factors were held constant at simulated natural levels. White spruce and tree-of-heaven had optimal shoot and root growth at 19°C. Jack pine growth was maximum at 27°C. Douglas-fir seedlings developed well between 15 and 27°C. Paper birch grew well between 19 and 31°C with best shoot development at 31°C, whereas root development was favored at 23°C. Forest Sci. 20:363-367.
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Document Type: Journal Article
Affiliations: Professor, Michigan State University, Department of Forestry, East Lansing, Michigan 48824
Publication date: 1974-12-01
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Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
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