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    Author(s): Kathy A. Penrod; Larry H. McCormick
    Date: 1997
    Source: In: Pallardy, Stephen G.; Cecich, Robert A.; Garrett, H. Gene; Johnson, Paul S., eds. Proceedings of the 11th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-188. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 401
    Publication Series: General Technical Report (GTR)
    Station: North Central Research Station
    PDF: View PDF  (277.48 KB)

    Description

    Hay-scented fern is a common forest understory weed native to the Appalachian region. It interferes with oak and other hardwood seedling growth and often leads to regeneration failures. Harvesting is know to increase rates of vegetative expansion, spore germination, and possibly spore production of hay-scented fern. To examine the latter effect, a progressive series of five annual clearcuts was made in each year from 1990 to 1994 in a mixed oak stand in central Pennsylvania. Four populations of hay-scented fern in each clearcut and in an uncut control stand were sampled in August 1994. The number of fronds per square meter increased four-fold in the first two growing seasons following clearcutting then decreased to about twice the density of the uncut control stand following five growing seasons. Percentage of fertile fronds declined the first growing season as new fronds emerged then increased continuously each growing season as new fronds matured. Spore production per frond increased four-fold and estimated population spore production increased twelve-fold by the fifth growing season following clearcutting. Spore production increases of this magnitude can lead to large increases in the soil sporebank of hay-scented fern.

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    Citation

    Penrod, Kathy A.; McCormick, Larry H. 1997. Hay-scented fern spore production following clearcutting. In: Pallardy, Stephen G.; Cecich, Robert A.; Garrett, H. Gene; Johnson, Paul S., eds. Proceedings of the 11th Central Hardwood Forest Conference; Gen. Tech. Rep. NC-188. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Forest Experiment Station: 401

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