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

Abstract A stand density management diagram for use with loblolly pine (Pinus taeda L.) plantations in north Louisiana has been developed. Three critical stand density boundaries important to management were defined: (1) the point of crown closure, (2) the point of self-thinning, and (3) the maximum tree size-stand density relationship. These three boundaries were estimated to occur at stand density index values of 160, 220, and 400, respectively. Three examples illustrating the use of these boundaries in thinning strategies are presented. South. J. Appl. For. 18(1):40-45.

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Performance of Container and Bareroot Loblolly Pine Seedlings on Bottomlands in South Carolina

Southern Journal of Applied Forestry ◽

10.1093/sjaf/17.2.80 ◽

1993 ◽

Vol 17 (2) ◽

pp. 80-83 ◽

Cited By ~ 7

Author(s):

J. P. Barnett ◽

J. M. McGilvray

Keyword(s):

South Carolina ◽

Pinus Taeda ◽

Loblolly Pine ◽

Long Term Effects ◽

Pine Seedlings ◽

Stock Types ◽

Pinus Taeda L ◽

Better Than

Abstract The performance of container and bareroot loblolly pine (Pinus taeda L.) seedlings from the same improved seedlot was compared on highly productive bottomland sites in South Carolina. At the time of planting, size and quality of the open-grown container stock were equal to or betterthan bareroot material. When outplanting conditions were ideal, field plantings in March, April, and May of 2 successive years indicated equal performance of the 2 stock types. When conditions were more stressful, container stock survived and grew better than bareroot seedlings. Needle-tipburn caused by postplanting applications of herbicides had no long-term effects on seedling growth. South. J. Appl. For. 17(2):80-83.

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Long-Term Effects of Pine Tip Moth (Lepidoptera: Tortricidae) Control, Vegetation Control, and Fertilization on Growth and Yield of Loblolly Pine, Pinus taeda L.

Journal of Entomological Science ◽

10.18474/0749-8004-48.1.23 ◽

2013 ◽

Vol 48 (1) ◽

pp. 23-35

Author(s):

C.W. Berisford ◽

R.S. Cameron ◽

J.F. Godbee ◽

J.M. Jones ◽

M.J. Dalusky ◽

...

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Growth And Yield ◽

Long Term Effects ◽

Vegetation Control ◽

Pinus Taeda L

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Nondestructive estimation of Pinus taeda L. wood properties for samples from a wide range of sites in Georgia

Canadian Journal of Forest Research ◽

10.1139/x04-160 ◽

2005 ◽

Vol 35 (1) ◽

pp. 85-92 ◽

Cited By ~ 66

Author(s):

P D Jones ◽

L R Schimleck ◽

G F Peter ◽

R F Daniels ◽

A Clark III

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Near Infrared ◽

Microfibril Angle ◽

Nir Spectroscopy ◽

Wood Properties ◽

Small Sample ◽

Dry Density ◽

Wide Range ◽

Pinus Taeda L

Preliminary studies based on small sample sets show that near infrared (NIR) spectroscopy has the potential for rapidly estimating many important wood properties. However, if NIR is to be used operationally, then calibrations using several hundred samples from a wide variety of growing conditions need to be developed and their performance tested on samples from new populations. In this study, 120 Pinus taeda L. (loblolly pine) radial strips (cut from increment cores) representing 15 different sites from three physiographic regions in Georgia (USA) were characterized in terms of air-dry density, microfibril angle (MFA), and stiffness. NIR spectra were collected in 10-mm increments from the radial longitudinal surface of each strip and split into calibration (nine sites, 729 spectra) and prediction sets (six sites, 225 spectra). Calibrations were developed using untreated and mathematically treated (first and second derivative and multiplicative scatter correction) spectra. Strong correlations were obtained for all properties, the strongest R2 values being 0.83 (density), 0.90 (MFA), and 0.93 (stiffness). When applied to the test set, good relationships were obtained (Rp2 ranged from 0.80 to 0.90), but the accuracy of predictions varied depending on math treatment. The addition of a small number of cores from the prediction set (one core per new site) to the calibration set improved the accuracy of predictions and importantly minimized the differences obtained with the various math treatments. These results suggest that density, MFA, and stiffness can be estimated by NIR with sufficient accuracy to be used in operational settings.

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Identification of QTLs influencing wood property traits in loblolly pine (Pinus taeda L.). II. Chemical wood properties

Theoretical and Applied Genetics ◽

10.1007/s001220100697 ◽

2002 ◽

Vol 104 (2) ◽

pp. 214-222 ◽

Cited By ~ 65

Author(s):

M. M. Sewell ◽

M. F. Davis ◽

G. A. Tuskan ◽

N. C. Wheeler ◽

C. C. Elam ◽

...

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Wood Property ◽

Wood Properties ◽

Pinus Taeda L

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An Economic Evaluation of the Use of Oust for Herbaceous Weed Control in Loblolly Pine Plantations

Southern Journal of Applied Forestry ◽

10.1093/sjaf/16.1.40 ◽

1992 ◽

Vol 16 (1) ◽

pp. 40-47 ◽

Cited By ~ 6

Author(s):

Rodney L. Busby

Keyword(s):

Pinus Taeda ◽

Weed Control ◽

Loblolly Pine ◽

Economic Returns ◽

Stand Growth ◽

Growth Increments ◽

Long Term Effect ◽

Herbaceous Weed Control ◽

Pinus Taeda L

Abstract Herbaceous weed control using Oust (sulfometuron methyl²) is economically efficient in loblolly pine (Pinus taeda L.) plantations given reasonable expectations about the long-term effect of the treatment on stand growth. Increases in the sizes of the growth increments following treatment that have been reported in the literature, and the economic returns this analysis shows are possible, indicate that investment in herbaceous weed control can be a prudent silvicultural option. South. J. Appl. For. 16(1):40-47.

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Stand Density Index for Loblolly Pine Plantations in North Louisiana

Southern Journal of Applied Forestry ◽

10.1093/sjaf/20.2.110 ◽

1996 ◽

Vol 20 (2) ◽

pp. 110-113 ◽

Cited By ~ 4

Author(s):

Roger A. Williams

Keyword(s):

Pinus Taeda ◽

Loblolly Pine ◽

Basal Area ◽

Stand Density ◽

Pine Plantations ◽

Density Index ◽

Pinus Taeda L ◽

Stand Density Index ◽

North Louisiana

Abstract Stand Density Index (SDI) equations and diagrams were developed and presented for loblolly pine (Pinus taeda L.) plantations in north Louisiana. Two different SDI diagrams are presented—one that utilizes the number of trees per acre and average stand diameter, and a second that uses the number of trees per acre and the basal (ft²) per acre. Basal area is presented as a second alternative to average stand diameter since many practicing foresters commonly use basal area for density management. South. J. Appl. For. 20(2):110-113.

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