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    Author(s): Michael D. Cain; Michael G. Shelton
    Date: 2001
    Source: Southern Journal of Applied Forestry. 25:1 (40-45).
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (196 KB)

    Description

    Loblolly and shortleaf pine (Pinus taeda L. and P. chinata Mill., respectively) seed crops were monitored for 20 consecutive years (1980-1981 through 1999-2000) using seed-collection traps in natural stands on the Upper Coastal Plain of southeastern Arkansas. Each seed-collection period began on October 1 and continued through the end of February of successive years. Sound seeds were separated from void seeds by use of a cut test. During 20 yr, sound seed production ranged from 0 to 2,000,000/ac. There were six bumper seed crops (>800, 000 sound seeds/ac), nine good seed crops (40, 000-800, 000 sound seeds/ac), and five poor seed crops (<40, 000 sound seeds/ac). Because no poor seed crops occurred back-to-back, the seed supply was adequate for successful natural pine regeneration over the entire monitoring period. During 8 yr of adequate seed production, when weekly seed counts were made, seed dispersal always peaked in early November; therefore, site preparation should be completed before November to maximize seedling catch.

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    Citation

    Cain, Michael D.; Shelton, Michael G. 2001. Twenty years of natural loblolly and shortleaf pine seed production on the Crossett Experimental Forest in southeastern Arkansas. Southern Journal of Applied Forestry. 25:1 (40-45).

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