Notes: Barrier Zones in Red Maple: an Optical and Scanning Microscope Examination
Barrier zones were studied in 10 wounded red maple trees using optical microscopy with reflected and transmitted light, scanning electron microscopy, and dye penetration. Vessels in the barrier zone were abnormal and fewer in number, and vessel segments were irregular in shape. Vertical transport of fluid in this region was markedly reduced, and opacity to transmitted light was increased, in comparison with normal secondary xylem. Forest Sci. 25:311-316.
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Document Type: Miscellaneous
Affiliations: Chief Scientist, USDA Forest Service, Durham, New Hampshire 03824
Publication date: 1979-06-01
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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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