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  1. Lengthened cold stratification improves bulk whitebark pine germination

    Crucial to the restoration of whitebark pine (Pinus albicaulis) ecosystems is the ability of forest managers to locate, propagate, and reintroduce viable, disease-resistant populations to these jeopardized systems. Currently, one of the most limiting steps in this process is the slow, labor-in - tensive, and expensive process of producing whitebark seedlings at forest...

    Author(s):
    Nathan Robertson; Kent Eggleston; Emily Overton; Marie McLaughlin
    Year:
    2013
    Keywords:
    Pinus albicaulis, scarification, nursery, seedling, restoration, seedcoat, dormancy
    Source:
    In: Haase, D. L.; Pinto, J. R.; Wilkinson, K. M., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations - 2012. Proceedings RMRS-P-69. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 72-76.

  2. Gibberellic acid breaks dormancy and hastens germination of creeping sage

    Creeping sage (Salvia sonomensis Greene), a semi-shrub, is useful for plantings to reduce fire hazard and to stabilize soil. The most effective, practical, and lasting technique to break seed dormancy was a soaking in gibberellic acid under constant agitation at 500 p.p.m. for 4 hours. Lesser concentrations of this acid and shorter soaking periods...

    Author(s):
    Eamor C. Nord; Louis E. Gunter; Stuart A. Graham Jr.
    Year:
    1971
    Keywords:
    Salvia sonomensis, seed dormancy, seed treatments, gibberellic acid
    Source:
    Res. Note PSW-RN-259. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

  3. Implications of seed banking for recruitment of Southern Appalachian woody species

    Seed dormancy is assumed to be unimportant for population dynamics of temperate woody species, because seeds occur at low densities and are short lived in forest soils. However, low soil seed densities may result from low seed production, and even modest seed longevity can buffer against fluctuating seed production, potentially limiting density-dependent mortality and...

    Author(s):
    Janneke Hille Ris Lambers; James S. Clark; Michael Lavine
    Year:
    2002
    Keywords:
    Bayesian statistics, bet hedging, recruitment limitation, seed banking, seed dormancy, Southern Appalachian forests, species coexistence
    Source:
    Ecology. 86(1): 85-95

  4. Environmental factors influencing Pyrenophora semeniperda-caused seed mortality in Bromus tectorum

    Temperature and water potential strongly influence seed dormancy status and germination of Bromus tectorum. As seeds of this plant can be killed by the ascomycete fungus Pyrenophora semeniperda, this study was conducted to learn how water potential and temperature influence mortality levels in this pathosystem. Separate experiments were conducted to determine: (1) if P...

    Author(s):
    Heather Finch; Phil S. Allen; Susan E. Meyer
    Year:
    2013
    Keywords:
    Bromus tectorum, pathosystem, Pyrenophora semeniperda, seed germination, temperature, time, water potential
    Source:
    Seed Science Research. 23: 57-66.

  5. National Proceedings: Forest and Conservation Nursery Associations - 2012

    These proceedings are a compilation of 20 papers that were presented at the regional meetings of the forest and conservation nursery associations and the Intertribal Nursery Council meeting in the United States in 2012. The Joint Meeting of the Southern Forest Nursery Association and Northeastern Forest and Conservation Nursery Association was held at the Sheraton Read...

    Author(s):
    D. L. Haase; J. R. Pinto; K. M. Wilkinson
    Year:
    2013
    Keywords:
    bareroot nursery, container nursery, nursery practices, fertilization, pesticides, seeds, reforestation, restoration, tree physiology, hardwood species, native species
    Source:
    Proceedings RMRS-P-69. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 114 p. Available at: http://www.fs.fed.us/rm/pubs/rmrs_p069.html.

  6. Chilling hours: Myths and facts

    This paper is a critical review of over four decades of research on chilling with southern pine seedlings. For most pines, freeze tolerance, seed dormancy, and endodormancy of terminal buds are affected by natural chilling (0° to 8 °C [32 to 46 °F]). Unfortunately, in the field of reforestation, several myths have emerged regarding the importance of chilling. One myth...

    Author(s):
    David B. South
    Year:
    2013
    Keywords:
    dormancy, freeze tolerance, seedling storage, nursery management, disease
    Source:
    In: Haase, D. L.; Pinto, J. R.; Wilkinson, K. M., technical coordinators. National Proceedings: Forest and Conservation Nursery Associations - 2012. Proceedings RMRS-P-69. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 3-10.
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