June 8, 2021 - Report explains loblolly pine genetics, tree improvement, and the evolution of seedling markets, and is intended to help landowners understand their choices in seedling genetics. Steve McKeand is Professor of Forestry and Environmental Resources and Director, North Carolina State University Cooperative Tree Improvement Program.
June 8, 2021 - Article provides a review of the research and science behind two approaches to planting loblolly pine seedlings – essentially a comparison of planting depth vs. root straightening priorities. Shallow planting regardless of taproot form can kill seedlings. A seedling that has a bent taproot but is planted deeply will have a higher probability of survival than a shallow planted seedling with a straight taproot. David B. South, Professor, School of Forestry and... Read More
June 8, 2021 - Report provides results from a summer 2006 evaluation of 63 CREP sites located in the Coastal Plain, Piedmont, and Ridge and Valley regions of VA. Findings indicated that additional efforts should be made to ensure fencing is maintained, species selections are based on site conditions, and invasive species are controlled. Benjamin N. Bradburn, W. Michael Aust, Mathew B. Carroll, Dean Cumbia, and Jerre Creighton.
June 8, 2021 - Article reviews the contributions of applied silvicultural research in tree improvement, nursery management, site preparation, weed control, and fertilization to plantation forestry in the South. Thomas R. Fox, Eric J. Jokela, and H. Lee Allen.
June 8, 2021 - Report provides cubic-foot volume yields for particular product definitions from a 25-year-old loblolly pine spacing trial and shows how closely, in the absence of thinning, total and merchantable wood production are linked to initial spacing. The results of this study suggest that no single planting density will be optimal for all management objectives. Ralph L. Amateis and Harold E. Burkhart.
June 8, 2021 - Report provides four-year results from a study of 12 hybrid poplar clones planted in replicated yield trials at two locations in the Virginia Piedmont. Results through the first four growing seasons showed that the clone with the most rapid height growth was also most susceptible to frost damage and stem canker disease. Harold E. Burkhart, Amy M. Brunner, Brian J. Stanton, Richard A. Shuren, Ralph L. Amateis, Jerre L. Creighton.
June 8, 2021 - Report provides results of a study of two planting densities (363 and 726 trees per acre) and three levels of nutrient additions aimed at maintaining the current site index (SI25) of the stand (55 ft.) or improving the SI25 to 70 and 80 ft. None of the treatments affected survival or height during the first 9 years, but both affected diameter growth. Colleen A. Carlson, Thomas R. Fox, Jerre Creighton, Phillip... Read More
June 8, 2021 - Report provides two-year results of a test to compare loblolly pine seedlings propagated in containers to those raised in traditional beds and planted “bare-root” in October, November, December, February, March, and April. Container seedlings survived and grew well if planted in the fall or spring but not in winter, while bare-root seedlings performed acceptably at all planting dates.
May 27, 2021 - Report summarizes results of a study installed in 2020 to compare packaging and storage of loblolly pine seedlings in open-ended bundles and multi-walled kraft / polyethylene bags. After one growing season, there was no statistically significant difference in either survival or height growth.
May 27, 2021 - A report from a three-year study to determine whether the root beater mechanism (reciprocating vs. oscillating) on the lifters used at the Garland Gray nursery affected either survival or growth of seedlings after planting. Results indicate no statistically significant effects of lifter on either attribute.
