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Growth Gains from Moving Black Walnut Provenances Northward

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In 1967, black walnut (Juglans nigra L.) seedlings from 15 to 25 provenances were planted at eight locations in the Midwest. In 1973, a similar plantation was established near Yoncalla, Oregon. Results show that, within the species' natural range, provenances can be moved as much as 200 miles northward without the likelihood of cold damage. In general, growth of trees from southern sources exceeds that of trees from northern sources.

Document Type: Journal Article

Affiliations: Principal Plant Geneticist, Southern Forest Experiment Station, USDA Forest Service, Gulfport, Mississippi

Publication date: October 1, 1980

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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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