Emergence and Establishment of Shortleaf Pine Seeds Under Various Seedbed Conditions
Emergence of direct-seeded shortleaf pine (Pinus echinata Mill.) seeds and seedling establishment varied with time of seeding and seedbed conditions resulting from various burning intensities following fell-burn site preparation on a Ouachita Mountain site in southeastern Oklahoma. One-third of the site was classified as unburned, 42% in a medium-burn class, and 25% was subjected to a hot burn. Approximately three times more seedlings emerged on areas receiving a hot burn than on unburned seedbeds. Sowing in January with unstratified seed resulted in greater seedling emergence than a March sowing with stratified seed (3.4 vs. 2.0%). Stocking ranged from 60% on winter sown, hot-burned plots to 3% on spring-sown, unburned plots at the end of the first year. Total seedling height averaged approximately 10 cm (4 in.) at the end of the first growing season. Concentrations of pine slash appeared to burn with the greatest intensity providing the most favorable seedbed conditions and a system which distributes slash more evenly over the site prior to burning could be beneficial in attaining more uniform regeneration. South. J. Appl. For. 17(1):44-48.
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Document Type: Journal Article
Affiliations: Department of Forestry, Oklahoma State University, Stillwater, OK 74078
Publication date: 01 February 1993