Effect of Methyl Bromide Treatments on Several Species of Conifer Seed
Abstract:Imported seed of Scotch pine, mugo pine, Norway spruce, and white spruce were subjected to several fumigation treatments using methyl bromide. Upon entry into the U.S., seed samples were taken and moisture contents adjusted to 5, 10, and 15 percent. Treatments were standard dosages of methyl bromide, with and without vacuum, and with either one-hour or 24-hour aeration periods. Results showed that seed should have a low moisture content before fumigation. Also, a 24-hour aeration period is recommended. Unfumigated seed with a 15 percent moisture content had a significant reduction in germination at the end of three weeks. Importers and exporters of tree seed should know the moisture content of their seed and make adjustments, if needed, prior to shipment and fumigation to insure that moisture contents are low.
Document Type: Journal Article
Affiliations: Supervisory Plant Quarantine Inspector, Agricultural Research Service, U.S. Dept. Agric., Hoboken, N.J.
Publication date: November 1, 1968
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- 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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