Title:

Longleaf pine regional cone production study

Author(s):

Boyer, William D.; Brockway, Dale G.; Willis, John L.

Publication Year:

2024

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

Boyer, William D.; Brockway, Dale G.; Willis, John L. 2024. Longleaf pine regional cone production study. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2024-0040

Abstract:

The number of green cones per tree produced by mature longleaf pines, at selected sites across the Southern Region, has been recorded during the spring of each year since 1958, beginning first at the Escambia Experimental Forest in Alabama for 8 years and then expanded to include several more sites during subsequent years in Louisiana, Florida, Georgia, South Carolina, and North Carolina. These spring cone counts (during April and May) are used to forecast longleaf pine tree cone production for fall (late October). Annual average cone production is provided for 11 sites ranging from 1958 to 2024 (data collection at most sites began in the late 1960s). Also included are annual diameter at breast height (DBH) measurements collected for 10-50 longleaf pine trees in each of 25 different stands (amongst the 11 different sites), as well as green cone production counts for individual longleaf pine trees in 35 stands from 1989-2024. Data from the 1957-2013 Escambia Experimental Forest Pollen Production Study are also provided, which includes measurements such as annual pollen grain counts, date of highest pollen count, and quality of next year's cone crop based on number of green cones found per tree. Study plans for the longleaf pine seed production study at the Escambia Experimental Forest and the establishment report are provided, in addition to the 2023 and 2024 annual reports for this study, which encompasses several other locations in the Southern Region. Photographs taken at a few of the study site locations are also included.

Keywords:

biota; Forest & Plant Health; Inventory, Monitoring, & Analysis; Pinus palustris; sustainability; restoration; regeneration; pollen; cones; seeds; Alabama; Florida; Georgia; Louisiana; North Carolina; South Carolina; Escambia Experimental Forest; Palustris Experimental Forest

Related publications:

• Boyer, William D. 1972. Air temperature, heat sums, and pollen shedding phenology of longleaf pine. Ecology. 54(2). (accepted October 1972, published spring 1973). https://doi.org/10.2307/1934351 https://research.fs.usda.gov/treesearch/2438
• Boyer, William D. 1987. Annual and geographic variations in cone production by longleaf pine. pages 73-76. https://research.fs.usda.gov/treesearch/972 In: 1987. Proceedings Fourth Biennial Southern Silvicultural Research Conference. General Technical Report. SE-42. Atlanta, GA: U.S. Department of Agriculture, Forest Service. 1986 November 4-6; Asheville NC.
• Croker, Thomas Caldwell. 1987. Longleaf pine: a history of man and a forest. Forestry Report. R8-FR 7. Atlanta, GA: U.S. Department of Agriculture, Forest Service, Southern Region. (included in data publication download: \Supplements\1987_Croker_History_of_Man_and_Forest.pdf).
• More (18 total)

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