The Effect of Daylength on Root Growth of Sitka Spruce
Author: Stahel, J. B.
Source: Forest Science, Volume 18, Number 1, 1 March 1972 , pp. 27-31(5)
Publisher: Society of American Foresters
Abstract:First-year seedlings of Sitka spruce were grown with either 8 or 18 hr of constant light intensity. In general long-day plants showed a constant rate of root growth over the 81-day observation period, whereas root growth of seedlings transferred to short days decreased within 2 weeks, then increased again and later declined. Short-day plants returned to long days paralleled long-day seedlings in respect to root growth even though top growth had ceased. The daily rhythm of root elongation was similar in long days and short days; root growth appeared to be stimulated during the light period. Forest Sci. 18:27-31.
Document Type: Journal Article
Affiliations: Head of Wood Biological Sec., Dep. of Microtechnological Wood Research, Swiss Federal Instit. of Technology, Zurich
Publication date: 1972-03-01
- 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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