Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): David B. South
    Date: 2006
    Source: Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 441-447
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (397 KB)

    Description

    Freeze injury to roots and shoots of pines is affected by genotype and nursery practices. Local sources of shortleaf pine and Virginia pine that are grown in nurseries in USDA hardiness Zones 6 and 7a are relatively freeze tolerant. However, loblolly pine, slash pine, and longleaf pine seedlings have been injured by a number of freeze events (0 to 24 °F) in hardiness Zone 7b and 8. Some fast-growing half-sib families from the Coastal Plain are more susceptible to freeze than Piedmont sources. Temperatures that produce freeze injury symptoms are lower when pines are acclimated to cold weather than when seedlings have been deacclimated due to several nights of warm nighttime temperatures. Unusually warm temperatures in January of 2004 deacclimated pine seedlings, and this resulted in root injury from a hard freeze (18 °F). Since shoots typically do not show injury (unless they are actively flushing), root injury is often overlooked, and many freeze-injured seedlings died quickly after planting. Since freeze injury symptoms are sometimes difficult to identify, foresters typically offer various reasons (other than a freeze) for the poor seedling performance. This paper reviews some data on freeze events that have occurred over the past century.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    South, David B. 2006. Freeze injury to southern pine seedlings. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 441-447

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page