scholarly journals Height Growth of Loblolly and Slash Pine Plantations in the Northern Post-Oak belt of Texas

1989 ◽  
Vol 13 (1) ◽  
pp. 5-8 ◽  
Author(s):  
Robert S. Hansen ◽  
M. Victor Bilan

Abstract Age accounted for over 70% of the variation in tree height of 10- to 44-year-old loblolly pine (Pinus taeda L.) and slash (Pinus elliottii Engelm.) plantations established on deep sands, moderate sands, and nonsandy soils in the Northern Post-Oak Belt of Texas. Climatic and edaphicfactors, relating either directly or indirectly to the amount of moisture available for tree use, explained up to 17% of height growth variation. Height growth of the plantations was comparable to that of plantations growing in the pine-mixed hardwood forest cover type of East Texas. The NorthernPost-Oak Belt of Texas is an area approximately 50 to 100 miles wide located between the pine-mixed hard-wood forest type to the east and the black-land prairie to the west. Soils within the belt belong primarily to the Alfisol or Ultisol soil orders. The western-most areas of the belt receiveup to 20% less annual rain fall than the pine-mixed hardwood type of East Texas (U.S. Environmental Data and Information Service 1949-1982). The present forest of this area is dominated by post oak (Quercus stellata Wang.), black-jack oak (Quercus Marilandica Muench.), bluejack oak (Quercusincana Bartr.), and black hickory (Carya texana Buckl.) (Ward 1984). Loblolly pine (Pinus taeda L.) and shortleaf pine (Pinus echinata Mill.) occur naturally only in scattered locations (Wilson and Hacker 1986). South. j. Appl. For. 13(1):5-8.

1988 ◽  
Vol 12 (4) ◽  
pp. 259-261 ◽  
Author(s):  
J. David Lenhart ◽  
W. Thomas McGrath ◽  
Terry L. Hackett

Abstract Five surveys of pine plantations in East Texas over an 18-year period (1969-1987) indicated that fusiform rust (Cronartium quercuum [Berk.] Miyabe ex Shirai f. sp. fusiforme Birdsall and Snow) infection rates have increased to current levels of about 50% on slash pine (Pinus elliottii Engelm.) and are continuing to increase on loblolly pine (Pinus taeda L.) to 10-15% levels. South. J. Appl. For. 12(4):259-261.


1983 ◽  
Vol 7 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Paul A. Murphy ◽  
Robert M. Farrar

Abstract Equations are given to estimate current and projected sawtimber volumes and projected basal area of the sawtimber portion of uneven-aged loblolly-shortleaf (Pinus taeda L.-Pinus echinata Mill.) pine stands managed under the selection system. The independent variables are elapsed time, initial merchantable basal area, and the initial ratio of sawtimber basal area to merchantable basal area. The results should provide guidelines for the board-foot and cubic-foot production of sawtimber-sized trees in uneven-aged stands that occur on average sites (site index 90, loblolly pine) in the Coastal Plain.


1986 ◽  
Vol 10 (4) ◽  
pp. 215-216 ◽  
Author(s):  
Ellis V. Hunt ◽  
J. David Lenhart

Abstract Four surveys of pine plantations in East Texas between 1969 and 1984 indicate that fusiform rust (Cronartium quercuum (Berk.) Miyabe ex Shirai f. sp. fusiforme) infection rates are increasing on slash pine (Pinus elliottii Engelm. var. elliottii) and either decreasing or about constant on loblolly pine (Pinus taeda L.). Currently, stem infections occur on about 1 in 2 slash pines and 1 in 14 loblolly pines. South. J. Appl. For. 10:215-216, Nov. 1986.


1992 ◽  
Vol 16 (3) ◽  
pp. 142-146
Author(s):  
David B. South

Abstract Tolerance to applications of prodiamine was examined in field experiments with loblolly pine (Pinus taeda L.), slash pine (Pinus elliottii Engelm. var elliottii), longleaf pine (Pinus palustris Mill.), shortleaf pine (Pinus echinata Mill.), and eastern white pine (Pinus strobus L.)seedlings at nine southern nurseries in 1979 and at six nurseries in 1980. No significant injury was observed when 0.5 kg ai/ha (7.1 oz ai/ac) was applied after sowing (preemergence) or 4 to 6 wk after sowing (postemergence). When applied just after sowing at 1.0 kg ai/ha (13.3 oz. ai/ac),a reduction in emergence was observed with loblolly pine, shortleaf pine, and eastern white pine. Tolerance of various hardwoods was also examined. Sycamore (Platanus occidentalis L.) was sensitive, and seedling production was reduced with both preemergence and early postemergence applications.Green ash (Fraxinus pennsylvanica Marsh.), sweetgum (Liquidambar styraciflua L.), and two species of oaks (Quercus alba L. and Q. nigra L./Q. phellos L.) tolerated rates as high as 1.0 kg ai/ha. South. J. Appl. For. 16(3):142-146


1985 ◽  
Vol 9 (4) ◽  
pp. 247-249 ◽  
Author(s):  
H. L. Williston

Abstract Unthinned loblolly pine (Pinus taeda L.) planted near Abbeville, Mississippi in a creek bottom with a site index of 122 had a yield of 6,925 cubic feet per acre at age 26. Shortleaf pine (Pinus echinata Mill.) planted beside the loblolly pine had a site index of 108 and a yield of 4,120 cubic feet per acre.


1997 ◽  
Vol 21 (3) ◽  
pp. 143-145
Author(s):  
David B. South

Abstract Tolerance of southern pines to preemergence applications of fomesafen was examined at eight nursery experiments in 1984. When sown on coarse textured soils, loblolly pine (Pinus taeda L.), slash pine (Pinus elliottii Engelm. var elliottii), longleaf pine (Pinus palustris Mill.), and shortleaf pine (Pinus echinata Mill.) were tolerant to 0.5 kg ai/ha applied after sowing. However, a reduction in loblolly pine seedling production was observed with one test on a silt loam soil in Louisiana. The risk of injury from a preemergence application may be related to soil texture. Pine tolerance to a single postemergence treatment was tested at seven nurseries in 1985. No significant injury was observed when 0.5 kg ai/ha was applied 3 to 8 weeks after sowing loblolly pine or shortleaf pine, and no injury was observed on fall-sown eastern white pine (Pinus strobus L.). When applied 1 or 2 months after sowing, loblolly pine appears tolerant to fomesafen even on silt loam soils. Injury has been observed from postemergence applications when a surfactant was used in combination with fomesafen. Preemergence applications of fomesafen are now an operational practice at several southern pine nurseries. South. J. Appl. For. 21(3):143-145.


1982 ◽  
Vol 6 (4) ◽  
pp. 218-221 ◽  
Author(s):  
J. D. Benson ◽  
R. E. Schoenike ◽  
D. H. Van Lear

Abstract Progeny of presumed natural hybrids of shortleaf (Pinus echinata Mill.) and loblolly pine (Pinus taeda L.) growing in the Piedmont of South Carolina were found to have height and diameter growth rates between that of the two species. Survival of these trees was less than loblolly but no differences were found between them and shortleaf pine. Incidence of fusiform rust was low with the putalive hybrid having a infection rate 3 to 11 percent lower than loblolly pine. These putative hybrids, perhaps natural hybrids of loblolly and shortleaf pines, also offer potential resistance to littleleaf disease and would be a planting alternative to shortleaf pine in certain areas.


1992 ◽  
Vol 16 (4) ◽  
pp. 197-200
Author(s):  
W. David Hacker ◽  
M. Victor Bilan

Abstract A study was conducted in the Post Oak Belt of East Texas to determine which site factors affected height growth of loblolly pine (Pinus taeda L.). Height/age pairs were developed from stem analysis. Nonlinear regression was implemented to develop generalized height-age model. Aftercurves were developed, stepwise regression was used to determine if an environmental variable impacted height growth. Environmental factors correlated with height growth included A horizon depth and those related to moisture relations including seasonal precipitation, average daily temperature,and texture of the A horizon. South. J. Appl. For. 16(4):197-200


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