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Seed Source Effects in 5- and 10-Year-Old Test Plantings of Slash Pine in Georgia and Florida

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Abstract:

Slash pine seedlings from 15 seed sources were planted at 7 localities and observed at 10 years of age. Supplemental data were obtained at 5 years from plantings of 54 sources at 2 localities. Survival showed a north-south gradient, with the northern sources tending to perform best at all plantations. Height growth showed appreciable seed source X planting site interaction. In the north Florida and south Georgia plantings, trees from south Georgia and north Florida sources performed best, with decreasing height growth exhibited by sources from the extreme north and southern range of the species. In a single south Florida planting a similar clinal pattern occurred, but the optimum seed sources were in central Florida. Fusiform rust infection showed a strong seed source X planting site interaction, with no clear geographic patterns. Gum yield showed strong seed source effects with no interaction or geographic pattern. Forest Sci. 17:23-30.

Keywords: Cronartium fusiforme; Pinus elliottii; provenance

Document Type: Journal Article

Affiliations: Assoc. Silviculturist, Southeastern Forest Exp. Sta., Forest Service, USDA, Forest Resources Lab., ehigh Acres, Fla.

Publication date: March 1, 1971

More about this publication?
  • 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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