Geographic Source of Loblolly Pine Seed
Abstract:The importance of the geographic source of seed used in forest planting has been stressed in American forestry literature for the past 30 years, but largely on theoretical grounds or on the basis of European experience. Douglas fir and ponderosa pine are practically the only American species for which definitive results of studies of geographic strains, based on plantations within the United States, have hitherto been published. The following article presents results obtained in plantations of loblolly pine established in eastern Louisiana in 1926 with seed from 4 geographic sources. At 15 years in plantation the local strain had produced more than twice as much pulpwood per acre as either of the 2 most distant strains. Conspicuous and economically important differences in resistance to disease also had appeared among the different strains, even between 2 from sources with almost identical climates.
Document Type: Journal Article
Affiliations: Silviculturist, Southern Forest Experiment Station, New Orleans, La.
Publication date: 1944-01-01
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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.
2015 Impact Factor: 1.476
Ranking: 22 of 66 in forestry
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