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Maintaining Quality in Christmas Tree Shipments

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Douglas-fir Christmas trees shipped in railroad box cars from the Pacific Northwest to Los Angeles, Calif., suffer varying degrees of deterioration, depending on treatment before shipment, length of time in cars, and temperatures within loads during shipment. Test shipments were made in 1962 in a standard box car and a mechanically refrigerated car, with recording thermometers at three levels within the loads. Additional shipments in standard box cars were made in 1964 using crushed ice blown in on the loads as a coolant. At Los Angeles the 1962 trees were mounted under simulated home conditions and their useful life measured for 11 days. Needle-drop proved a poor measure of deterioration but observations of color, dryness, and needle-drop on the 10th day showed obvious differences. Time of cutting, previous fertilizing, along with position in packing, and shipping temperature affected the useful life and value of trees.

Document Type: Journal Article

Affiliations: Assistant Agricultural Economist, Department of Agricultural Economics, Oregon State University, Corvallis

Publication date: November 1, 1965

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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