scholarly journals Predicting Response of Southeast Texas Loblolly Pine to Fertilization

2001 ◽  
Vol 25 (2) ◽  
pp. 84-87 ◽  
Author(s):  
Gregoire Ngono ◽  
R.F. Fisher
Keyword(s):  
Loblolly Pine ◽  
Critical Level ◽  
Nutrient Status ◽  
Integrated System ◽  
Vector Analysis ◽  
Diagnostic Tools ◽  
Southeast Texas ◽  
Pinus Taeda L ◽  
The Cost ◽  
Soil Groups

Abstract The Diagnosis and Recommendation Integrated System (DRIS), vector analysis, and critical level approaches are diagnostic tools commonly used for assessing nutrient status of trees by foliar analysis. This study evaluated the relative merits of the three approaches for identifying N and P deficiencies in stands of loblolly pine (Pinus taeda L.) in southeast Texas. Only 25% of the time did all three approaches select the same stands as N deficient, and only once did they agree that a stand was N sufficient. The three approaches agreed 25% of the time that stands were P deficient and 13% of the time that stands were P sufficient. No method was universally accurate in predicting response across soil groups. The critical level approach proved best for identifying all responsive sites, and it would be useful if the cost of fertilization was deemed low in comparison with the cost of lost growth when responsive sites are not fertilized. The DRIS approach failed to identify some responsive sites, but a high proportion of the sites it predicted would respond, did respond. It would be useful if the cost of fertilization were deemed high in comparison with the cost of lost growth when responsive sites are not fertilized. The vector analysis approach proved most useful because of its ability to predict response to N and P when added together. Soil group alone was a reasonable predictor of response to fertilization. South. J. Appl. For. 25(2):84–87.

Comparison of Slash Pine and Loblolly Pine Performance on Cutover Site-Prepared Sites in the Coastal Plain of Georgia and Florida

1989 ◽  
Vol 13 (4) ◽  
pp. 204-207 ◽  
Author(s):  
Bruce E. Borders ◽  
William M. Harrison
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Coastal Plain ◽  
Pinus Elliottii ◽  
Slash Pine ◽  
Comparison Study ◽  
Species Comparison ◽  
Pinus Taeda L ◽  
Better Than ◽  
Soil Groups

Abstract Age 8 measurements and analysis are reported and discussed for a large side-by-side loblolly pine (Pinus taeda L.)/slash pine (Pinus elliottii Engelm.) species comparison study. It is shown that loblolly pine performed better than slash pine in CRIFF soil groups A, D, F, and G whileslash pine and loblolly pine performed similarly in CRIFF soil groups B and C. South. J. Appl. For. 13(4):204-207.

Traits Measured on Seedlings Can Be Used to Select for Later Volume of Loblolly Pine

1984 ◽  
Vol 8 (1) ◽  
pp. 59-63
Author(s):  
John F. Robinson ◽  
J. P. Van Buijtenen ◽  
Ernest M. Long
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Indirect Selection ◽  
Selection Method ◽  
Southeast Texas ◽  
Selection For ◽  
Pinus Taeda L ◽  
Individual Trees ◽  
Seed Characteristics ◽  
Seedling Characteristics

Abstract Seed was collected from individual trees in loblolly pine (Pinus taeda L.) stands in southeast Texas. Although selection on seed characteristics proved ineffective as an indirect selection method for improving five-year volume, selection for seedling characteristics prior to outplanting proved very effective. Families selected in greenhouse and nursery beds averaged 36 percent greater volume after five years in the field than checklots from the same stands. Seed from the southernmost stands produced more volume than seed from more northern stands. Seed weights of selected families were significantly greater than those of appropriate checks.

Soil Properties and Pine Growth Affected by Site Preparation after Clearcutting

1985 ◽  
Vol 9 (1) ◽  
pp. 40-43 ◽  
Author(s):  
J. J. Stransky ◽  
J. H. Roese ◽  
K. G. Watterston
Keyword(s):  
Organic Matter ◽  
Pinus Taeda ◽  
Loblolly Pine ◽  
Soil Nutrient ◽  
Site Preparation ◽  
Soil Samples ◽  
The Other ◽  
Pine Seedlings ◽  
Southeast Texas ◽  
Pinus Taeda L

Abstract A pine-hardwood sawtimber stand in southeast Texas was clearcut in September 1972. Random plots were burned, chopped, KG-bladed, or left untreated. In the spring of 1974, 1-0 loblolly pine seedlings (Pinus taeda L.) were handplanted at 8 by 10 foot spacing. Data from soil samples, taken from the 0-5 inch depth before clearcutting and 1, 3, and 5 years after site preparation showed that burning appeared to have changed soil nutrient levels the least. Of the two mechanical treatments, KG-blading altered the chemical composition of the soil most, probably because topsoil organic matter was removed. Planted pines survived and grew best on mechanically prepared areas, producing 1.5 to 3.3 times more cubic-foot volume per acre than either of the other treatments by the end of the eighth year.

Loblolly Pine Management and Utilization—State of the Art

1984 ◽  
Vol 8 (2) ◽  
pp. 88-96 ◽  
Author(s):  
R. C. Kellison ◽  
Sam Gingrich
Keyword(s):  
North Carolina ◽  
South Carolina ◽  
Loblolly Pine ◽  
Forest Industry ◽  
East Region ◽  
Genetically Improved ◽  
Natural Range ◽  
Pinus Taeda L ◽  
Natural Stands ◽  
The Cost

Abstract The management and utilization of loblolly pine (Pinus taeda L.) were the topics of the Symposium on the Loblolly Pine Ecosystem (East Region) held in Raleigh, North Carolina, on December 8-10, 1982. The East Region is comprised of Virginia, North Carolina, South Carolina, Georgia, and Florida. A second symposium is scheduled for spring 1984 to cover the remaining natural range of loblolly pine. Plantations constitute about 27 percent of the loblolly pine resource of the East Region, with about two-thirds of the area belonging to forest industry. Natural stands can be established for about one-third the cost of plantations, where plans are made for natural regeneration. Optimum value is realized from plantations where site preparation is complete and where pests, competing vegetation, and stocking are controlled. Genetically improved planting stock, fertilization, and thinning are integral parts of plantation forestry. Maintaining site productivity is one of the greatest challenges facing the forest industry.

Brush Dams Reduce Sediment Production and Create Favorable Planting Sites

1977 ◽  
Vol 1 (4) ◽  
pp. 4-7
Author(s):  
Micheal T. Rains
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Erosion Control ◽  
Sediment Production ◽  
Pinus Taeda L ◽  
The Cost

Abstract To study the utility of cedar brush dams in establishing loblolly pine (Pinus taeda L.) seedlings for erosion control in north Mississippi, 155 1/2-acre plots were inventoried. Only 10 percent of the plots with brush dams had to be replanted. In comparison, 61 percent of plots without dams had to be replanted one or more times to ensure an adequate stand of trees. Seedlings planted behind dams grew 27 percent more through the first eight years than trees planted on surrounding slopes. Estimated sediment delivered to streams or functioning channels, five years after planting, was 2.6 times greater from plots without brush dams. The cost of brush dams ranged from $45 to $135 per acre.

scholarly journals A Consensus Map for Loblolly Pine (Pinus taeda L.). I. Construction and Integration of Individual Linkage Maps From Two Outbred Three-Generation Pedigrees

Genetics ◽  
1999 ◽  
Vol 151 (1) ◽  
pp. 321-330 ◽  
Author(s):  
Mitchell M Sewell ◽  
Bradley K Sherman ◽  
David B Neale
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Fragment Length Polymorphism ◽  
Random Amplified Polymorphic Dna ◽  
Mapping Function ◽  
Genetic Maps ◽  
Linkage Data ◽  
Linkage Maps ◽  
Consensus Map ◽  
Pinus Taeda L

Abstract A consensus map for loblolly pine (Pinus taeda L.) was constructed from the integration of linkage data from two unrelated three-generation outbred pedigrees. The progeny segregation data from restriction fragment length polymorphism, random amplified polymorphic DNA, and isozyme genetic markers from each pedigree were recoded to reflect the two independent populations of parental meioses, and genetic maps were constructed to represent each parent. The rate of meiotic recombination was significantly greater for males than females, as was the average estimate of genome length for males {1983.7 cM [Kosambi mapping function (K)]} and females [1339.5 cM(K)]. The integration of individual maps allows for the synthesis of genetic information from independent sources onto a single consensus map and facilitates the consolidation of linkage groups to represent the chromosomes (n = 12) of loblolly pine. The resulting consensus map consists of 357 unique molecular markers and covers ∼1300 cM(K).

Long-term effects of stand density management and genotype on wood properties of loblolly pine (Pinus taeda L.) in the mid-South USA

2021 ◽  
Vol 491 ◽  
pp. 119176
Author(s):  
Michael A. Blazier ◽  
Thomas Hennessey ◽  
Laurence Schimleck ◽  
Scott Abbey ◽  
Ryan Holbrook ◽  
...  
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Stand Density ◽  
Wood Properties ◽  
Long Term Effects ◽  
Stand Density Management ◽  
Pinus Taeda L

scholarly journals Competition Effects on Growth and Crown Dimensions of Shortleaf and Loblolly Pine in Mature, Natural-Origin, Pine–Hardwood Mixtures of the Upper West Gulf Coastal Plain of Arkansas, USA: A Neighborhood Analysis

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 935
Author(s):  
Mohammad Bataineh ◽  
Ethan Childs
Keyword(s):  
Loblolly Pine ◽  
Species Abundance ◽  
Basal Area ◽  
Pinus Echinata ◽  
Shortleaf Pine ◽  
Species Identity ◽  
Linear Mixed Effects ◽  
Natural Origin ◽  
Pinus Taeda L ◽  
Crown Dimensions

The need for a comprehensive and mechanistic understanding of competition has never been more important as plants adapt to a changing environment and as forest management evolves to focus on maintaining and enhancing complexity. With the recent decline in shortleaf pine (Pinus echinata Mill.) land area, it is critical to determine the effects of competition on shortleaf pine and its performance against loblolly pine (Pinus taeda L.), the preferred planted replacement. We evaluate differences in shortleaf and loblolly pine 10 year mean basal area increment (BAI) and crown dimensions across a gradient of neighborhoods. Linear mixed-effects regression models were developed using BAI and several crown metrics as responses and crowding, competitor species abundance and identity, and initial size and species identity of focal tree as predictors. Crowding of focal trees negatively impacted BAI and crown size (p < 0.001, respectively). Although loblolly pine had three times higher BAI as compared to shortleaf pine within similar neighborhoods, BAI was variable, and the crowding effect did not differ between shortleaf and loblolly pine (p ranged from 0.51–0.99). Competitive impacts on focal trees did not differ by competitor identity (p ranged from 0.07–0.70). Distance-independent competition indices better explained the variation in BAI and horizontal crown metrics, while distance-dependent size ratios were more effective at evaluating vertical crown metrics. These findings highlight shortleaf pine competitive potential in mature, natural-origin stands and provide support for the restoration of pine–hardwood and hardwood–pine stratified mixtures as well as management of shortleaf pine at long rotations.

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