Silvicultural treatments for converting loblolly pine to longleaf pine dominance: Effects on resource availability and their relationships with planted longleaf pine seedlings

2012 ◽  
Vol 282 ◽  
pp. 115-123 ◽  
Author(s):  
Huifeng Hu ◽  
G. Geoff Wang ◽  
Joan L. Walker ◽  
Benjamin O. Knapp
Keyword(s):  
Loblolly Pine ◽  
Resource Availability ◽  
Longleaf Pine ◽  
Silvicultural Treatments ◽  
Pine Seedlings

Using silvicultural practices to regulate competition, resource availability, and growing conditions for Pinus palustris seedlings underplanted in Pinus taeda forests

2016 ◽  
Vol 46 (7) ◽  
pp. 902-913 ◽  
Author(s):  
Benjamin O. Knapp ◽  
G. Geoff Wang ◽  
Joan L. Walker ◽  
Huifeng Hu
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Resource Availability ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Light Transmittance ◽  
Nutrient Concentrations ◽  
Plant Resources ◽  
Pine Seedlings ◽  
Growing Conditions

In the southeastern United States, many forest managers are interested in restoring longleaf pine (Pinus palustris Mill.) to upland sites that currently support loblolly pine (Pinus taeda L.). We quantified the effects of four canopy treatments (uncut Control; MedBA, harvest to 9 m2·ha−1; LowBA, harvest to 5 m2·ha−1; and Clearcut) and three cultural treatments (NT, no treatment; H, herbicide release of longleaf pine seedlings; and H+F, herbicide release plus fertilization) on resource availability and growing conditions in relation to longleaf pine seedling response for 3 years. Harvesting treatments reduced competition from canopy trees but resulted in greater abundance of understory vegetation. Harvesting shifted the interception of light from the canopy to the subcanopy vegetation layer; however, total light availability at the forest floor increased with the intensity of canopy removal. Soil moisture was not affected by harvesting or by the cultural treatments. Foliar nutrient concentrations (N, P, and K) of longleaf pine seedlings generally increased with the intensity of the harvest treatment. Of the plant resources measured, we found that light was most strongly correlated with longleaf pine seedling growth and that incorporating the interception of light by subcanopy vegetation improved the relationship over that of canopy light transmittance alone.

scholarly journals Fungicides Improve Field Performance of Stored Loblolly and Longleaf Pine Seedlings

1996 ◽  
Vol 20 (1) ◽  
pp. 5-9 ◽  
Author(s):  
John C. Brissette ◽  
James P. Barnett ◽  
John P. Jones
Keyword(s):  
Loblolly Pine ◽  
Cold Storage ◽  
Untreated Control ◽  
Longleaf Pine ◽  
Field Performance ◽  
Storage Duration ◽  
Fungicide Application ◽  
Total Height ◽  
Pine Seedlings

Abstract Seedlings of loblolly and longleaf pine lifted in December, January, and February were treated with either benomyl or ridomil before cold storage. Along with an untreated control, they were planted after cold storage of less than 1 wk, 3 wk, and 6 wk. Survival was measured in mid-June after planting, and after 1 and 4 yr in the field. Total height was measured after 4 yr. The fungicide application increased survival of both species lifted in December or February and was beneficial to longleaf pine seedlings regardless of storage duration. Fungicide-treated longleaf pine seedlings had greater mean 4 yr height than the controls, but fungicides did not affect the height of loblolly pine. South. J. Appl. For. 20(1): 5-9.

Silvicultural treatments for converting loblolly pine to longleaf pine dominance: effects on ground layer and midstorey vegetation

2016 ◽  
Vol 19 (2) ◽  
pp. 280-290 ◽  
Author(s):  
Huifeng Hu ◽  
Benjamin O. Knapp ◽  
G. Geoff Wang ◽  
Joan L. Walker
Keyword(s):  
Loblolly Pine ◽  
Longleaf Pine ◽  
Ground Layer ◽  
Silvicultural Treatments

scholarly journals Successful Reforestation of South Carolina Sandhills is not influenced by Seedling Inoculation with Pisolithus tinctorius in the Nursery

1999 ◽  
Vol 23 (1) ◽  
pp. 46-52 ◽  
Author(s):  
Michelle M. Cram ◽  
John G. Mexal ◽  
Ray Souter
Keyword(s):  
South Carolina ◽  
Loblolly Pine ◽  
Growth Response ◽  
Longleaf Pine ◽  
Pinus Palustris ◽  
Pisolithus Tinctorius ◽  
Savannah River ◽  
Pine Seedlings ◽  
Seedling Inoculation ◽  
River Site

Abstract Longleaf (Pinus palustris) and loblolly pine (P. taeda) nursery beds were treated with either vegetative inoculum of Pisolithus tinctorius (Pt) or allowed to become inoculated with natural ectomycorrhizae (NI) from 1987 to 1991. The resulting Pt and NI seedlings were outplanted on 2 sites per year (1988-1992) for a total of 10 demonstration plantings on the Savannah River Site (SRS), South Carolina. After 4 yr (5 yr for Site 5) the presence of Pt on bareroot longleaf pine at the time of planting did not improve seedling diameter or height growth. Longleaf pine survival was increased with the presence of Pt only on one site, while NI seedlings had greater survival on five sites and greater growth on two sites. The presence of Pt on the containerized longleaf pine had no effect on survival or diameter growth after 4 yr. Inoculation of bareroot loblolly pine with Pt resulted in larger diameter seedlings at the time of planting for four of eight sites. However, these differences in diameter were not maintained in three of the sites after 4 yr. The use of Pt as an artificial inoculant of bareroot longleaf and loblolly pine seedlings does not increase survival or growth response of reforestation plantings on the sandhills of South Carolina after 4 (5) yr. South. J. Appl. For. 23(1):46-52.

scholarly journals Hurricane Katrina Winds Damaged Longleaf Pine Less than Loblolly Pine

2009 ◽  
Vol 33 (4) ◽  
pp. 178-181 ◽  
Author(s):  
Kurt H. Johnsen ◽  
John R. Butnor ◽  
John S. Kush ◽  
Ron C. Schmidtling ◽  
C. Dana Nelson
Keyword(s):  
Hurricane Katrina ◽  
Loblolly Pine ◽  
Longleaf Pine ◽  
Basal Area ◽  
Tree Height ◽  
Common Garden ◽  
Slash Pine ◽  
Wind Damage ◽  
Silvicultural Treatments ◽  
Pinus Taeda L

Abstract Some evidence suggests that longleaf pine might be more tolerant of high winds than either slash pine (Pinus elliotii Englem.) or loblolly pine (Pinus taeda L.). We studied wind damage to these three pine species in a common garden experiment in southeast Mississippi following Hurricane Katrina, a very large, Category 3 hurricane that directly affected the stand in August 2005. The experiment, a factorial arrangement of silvicultural treatments established in 1960, included 120 plots of 100 trees each, covering about 22 ha. Following the hurricane, dbh was measured on all trees, and each tree was rated with respect to mortality from wind damage. Longleaf pine suffered less mortality (7%) than the other two species (slash pine, 14%; loblolly pine, 26%), although the differences in mortality were statistically significant only between longleaf pine and loblolly pine. Longleaf pine lost significantly fewer stems per hectare and less basal area than the two other species. Differences in mortality among species were not a function of mean plot tree height or plot density. Our analyses indicate that longleaf pine is more resistant to wind damage than loblolly pine.

scholarly journals Suitability of Southern Pines, Other Selected Crops, and Nutsedge to a Longidorus sp. Associated with Stunting of Loblolly Pine Seedlings

Plant Disease ◽  
2003 ◽  
Vol 87 (9) ◽  
pp. 1129-1132 ◽  
Author(s):  
S. W. Fraedrich ◽  
M. M. Cram ◽  
Z. A. Handoo
Keyword(s):  
Loblolly Pine ◽  
Cover Crops ◽  
Longleaf Pine ◽  
Host Suitability ◽  
Red Oak ◽  
Weed Species ◽  
South Georgia ◽  
Southern Pines ◽  
Pine Seedlings ◽  
Small Grains

An undescribed needle nematode (Longidorus sp.) has been associated with severely stunted loblolly pine seedlings at a south Georgia nursery. Containers with selected crop and weed species were infested with 100 or 200 adults and juveniles of the Longidorus individuals to evaluate host suitability. Nematode populations increased in containers with slash, loblolly, and longleaf pine seedlings. The Longidorus sp. significantly reduced the dry root weights of slash (P = 0.008) and loblolly (P = 0.047) but not longleaf (P = 0.095) pine compared with controls. Populations of Longidorus decreased on nutsedge and small grains, including wheat, rye, oat, sorghum, and millet; and, in most experiments, populations decreased to levels found in fallow containers. Populations decreased on tomato and cabbage but increased slightly on red oak. The periodic removal of fields from pine production to grow cover crops consisting of small grains or to maintain fallow fields may be an important practice for management of this Longidorus sp.

scholarly journals Genotypic Stability Effects on Predicted Family Responses to Silvicultural Treatments in Loblolly Pine

1997 ◽  
Vol 21 (2) ◽  
pp. 84-89 ◽  
Author(s):  
Steven E. McKeand ◽  
Robert P. Crook ◽  
H. Lee Allen
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Growth Responses ◽  
Intensive Culture ◽  
Genotype By Environment ◽  
Silvicultural Treatments ◽  
Genotypic Stability ◽  
Superior Genotypes ◽  
Using Data ◽  
Pinus Taeda L

Abstract The lack of rank change in growth characteristics when open-pollinated families of loblolly pine (Pinus taeda L.) are planted on different sites in the Southeast has greatly simplified breeding for superior genotypes. Although family rank does not usually change, genotype by environment interactions (GxE) may be very important in operational deployment of families in regeneration programs. Using data from GxE trials and two site preparation-fertilization-herbicide trials, we estimated the growth that different families should achieve following application of these silvicultural practices. Better performing families tend to be most responsive to site changes (i.e. genetically unstable). Growth responses to silvicultural treatment will be overestimated if only the most responsive families are used in silvicultural research trials. Similarly, genetic gains will be overestimated if gain trials are planted on only the best sites or receive intensive culture. South. J. Appl. For. 21(2):84-89.

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