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You searched for: Publication Year 2001 Remove constraint Publication Year: 2001 Subject term North Carolina Remove constraint Subject term: North Carolina
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1. Are forest floors in mid-rotation stands of loblolly pine (Pinus taeda) a sink for nitrogen and phosphorus?

Author:
Piatek, K.B.; Allen, H.L.
Source:
Canadian journal of forest research = 2001 v.31 no.7 pp. 1164-1174
ISSN:
0045-5067
Subject:
mineralization; nutrient content; nitrogen; forest litter; calcium; ammonium compounds; stand basal area; magnesium; conifer needles; forest soils; potassium; nitrates; Pinus taeda; degradation; phosphorus; crop rotation; biogeochemical cycles; North Carolina
Abstract:
... We examined decomposition and nutrient dynamics in fresh litter and net N mineralization in old litter to determine (i) if forest floor is a source of available nutrients in mid-rotation loblolly pine (Pinus taeda L.) stands and (ii) the effect of site preparation and vegetation control on forest floor nutrient dynamics. Four types of fresh litter were decomposed in situ in mesh bags: two containi ...
DOI:
10.1139/x01-049

2. Atmospheric carbon dioxide, irrigation, and fertilization effects on phenolic and nitrogen concentrations in loblolly pine (Pinus taeda) needles

Author:
Booker, F.L.; Maier, C.A.
Source:
Tree physiology 2001 v.21 no.9 pp. 609-616
ISSN:
0829-318X
Subject:
Pinus taeda; conifer needles; phenolic compounds; catechin; anthocyanidins; lignin; nitrogen content; quantitative analysis; carbon dioxide; dose response; irrigation; plant nutrition; fertilizers; seasonal variation; chemical constituents of plants; application rate; North Carolina
Abstract:
... Concentrations of total soluble phenolics, catechin, proanthocyanidins (PA), lignin and nitrogen (N) were measured in loblolly pine (Pinus taeda L.) needles exposed to either ambient CO2 concentration ([CO2]), ambient plus 175 or ambient plus 350 micromol CO2 mol-1 in branch chambers for 2 years. The CO2 treatments were superimposed on a 2 x 2 factorial combination of irrigation and fertilization ...
DOI:
10.1093/treephys/21.9.609
PubMed:
11390305

3. Canine Rocky Mountain spotted fever: a retrospective study of 30 cases

Author:
Gasser, A.M.; Birkenheuer, A.J.; Breitschwerdt, E.B.
Source:
Journal of the American Animal Hospital Association 2001 v.37 no.1 pp. 41-48
ISSN:
0587-2871
Subject:
Rickettsia rickettsii; drug therapy; blood chemistry; serodiagnosis; antibody formation; antibiotics; dogs; hematologic tests; Rocky Mountain spotted fever; mortality; North Carolina
DOI:
10.5326/15473317-37-1-41
PubMed:
11204476

4. Cascading of habitat degradation: oyster reefs invaded by refugee fishes escaping stress

Author:
Hunter S. Lenihan; Charles H. Peterson; James E. Byers; Jonathan H. Grabowski; Gordon W. Thayer; David R. Colby
Source:
Ecological applications 2001 v.11 no.3 pp. 764-782
ISSN:
1051-0761
Subject:
Crassostrea virginica; Crustacea; anaerobic conditions; community structure; dredging; estuaries; eutrophication; fish; habitat destruction; hypoxia; marine protected areas; oysters; reefs; refuge habitats; rivers; sand; summer; trophic relationships; North Carolina
Abstract:
... Mobile consumers have potential to cause a cascading of habitat degradation beyond the region that is directly stressed, by concentrating in refuges where they intensify biological interactions and can deplete prey resources. We tested this hypothesis on structurally complex, species‐rich biogenic reefs created by the eastern oyster, Crassostrea virginica, in the Neuse River estuary, North Carolin ...
DOI:
10.1890/1051-0761(2001)011[0764:COHDOR]2.0.CO;2

5. Changes to the landscape pattern of coastal North Carolina wetlands under the Clean Water Act, 1984–1992

Author:
Nina M. Kelly
Source:
Landscape ecology 2001 v.16 no.1 pp. 3-16
ISSN:
0921-2973
Subject:
Clean Water Act; Landsat; coasts; data collection; habitat destruction; habitat fragmentation; habitats; landscapes; remote sensing; wetlands; North Carolina
Abstract:
... Wetland management in the United States is organized through a permit process that requires a permit be filed with the U.S. Army Corps of Engineers prior to wetland alteration. A collection of these permits from 1984 through 1992 was analyzed in conjunction with classified Landsat Thematic Mapper data from 1984 and 1992 in order to quantify changes to wetland habitat in the study area in coastal N ...
DOI:
10.1023/A:1008168322720

6. Creeping bentgrass response to inorganic soil amendments and mechanically induced subsurface drainage and aeration

Author:
Bigelow, C.A.; Bowman, D.C.; Cassel, D.K.; Rufty, T.W. Jr.
Source:
Crop science 2001 v.41 no.3 pp. 797-805
ISSN:
0011-183X
Subject:
Agrostis stolonifera; soil amendments; subsurface drainage; soil air; air temperature; soil water content; rooting; gravity; sand; golf courses; North Carolina
Abstract:
... Creeping bentgrass (Agrostis stolonifera var. palustris Huds. Farw.) golf greens often decline under the hot, humid summer conditions of the southeastern USA. Factors associated with this decline may be poor soil aeration, excessive soil wetness, high temperatures, and turfgrass diseases. A field study evaluated a mechanical forced air system for its ability to modify the soil water content and ox ...

7. Differentiation of three homogeneous groups of Rhizoctonia solani anastomosis group 4 by analysis of fatty acids

Author:
Johnk, J.S.; Jones, R.K.
Source:
Phytopathology 2001 v.91 no.9 pp. 821-830
ISSN:
0031-949X
Subject:
fatty acids; Glycine max; quantitative analysis; Cucumis sativus; chemical constituents of plants; pathotypes; Thanatephorus cucumeris; pathogenicity; plant pathogenic fungi; genetic variation; Arachis hypogaea; chemotaxonomy; Beta vulgaris; North Dakota; Texas; Minnesota; California; Maryland; Georgia; North Carolina
Abstract:
... Profiles of fatty acids from 70 isolates of Rhizoctonia solani anastomosis group (AG)-4 clustered into three groups, corresponding to homogeneous group (HG)-I, HG-II, and a newly described HG-III. Isolates from Georgia peanuts exhibiting limb rot were characterized as gas chromatography (GC) subgroup 1 (GC-1) and contained HG-I isolates. Isolates from diseased soybean hypocotyls grown in North Dak ...
DOI:
10.1094/PHYTO.2001.91.9.821
PubMed:
18944227

8. Direct and indirect effects of elevated CO2 on leaf respiration in a forest ecosystem

Author:
Hamilton, J.G.; Thomas, R.B.; DeLucia, E.H.
Source:
Plant, cell and environment 2001 v.24 no.9 pp. 975-982
ISSN:
0140-7791
Subject:
interspecific variation; carbon dioxide; long term experiments; nitrogen content; Liquidambar styraciflua; air temperature; Pinus taeda; biomass; leaves; forests; North Carolina
DOI:
10.1046/j.0016-8025.2001.00730.x

9. Disaster relief management of companion animals affected by the floods of Hurricane Floyd

Author:
Hudson, L.C.; Berschneider, H.M.; Ferris, K.K.; Vivrette, S.L.
Source:
Journal of the American Veterinary Medical Association 2001 v.218 no.3 pp. 354-359
ISSN:
0003-1488
Subject:
hurricanes; disasters; dogs; cats; pets; pet care; North Carolina
DOI:
10.2460/javma.2001.218.354
PubMed:
11201560

10. Economic evaluation of HADSS™™ computer program for weed management in nontransgenic and transgenic cotton

Author:
Scott George H.; Askew Shawn D.; Bennett Andrew C.; Wilcut John W.
Source:
Weed science 2001 v.49 no.4 pp. 549-557
ISSN:
0043-1745
Subject:
Amaranthus hybridus; Amaranthus palmeri; Digitaria sanguinalis; Eleusine indica; Gossypium hirsutum; Ipomoea hederacea; MSMA (herbicide); Panicum dichotomiflorum; bromoxynil; computer software; decision support systems; economic analysis; fluometuron; glyphosate; herbicide resistance; lint cotton; lint yield; management systems; pesticide application; prometryn; pyrithiobac; transgenic plants; trifluralin; weed control; weeds; Brazil; North Carolina
Abstract:
... Field studies were conducted at four locations in North Carolina in 1998 and 1999 to evaluate the use of the Herbicide Application Decision Support System (HADSS™™) for weed management in nontransgenic, bromoxynil-resistant, and glyphosate-resistant cotton. Weed management systems included trifluralin preplant incorporated (PPI) plus fluometuron preemergence (PRE) or no soil-applied herbicides. Po ...
DOI:
10.1614/0043-1745(2001)049[0549:EEOHCP]2.0.CO;2

11. Effect of host plant ozone stress on Colorado potato beetles

Author:
Costa, S.D.; Kennedy, G.G.; Heagle, A.S.
Source:
Environmental entomology 2001 v.30 no.5 pp. 824-831
ISSN:
0046-225X
Subject:
pollutants; air pollution; Leptinotarsa decemlineata; Solanum tuberosum; ozone; cultivars; varietal resistance; leaves; nutrient content; carbon; nitrogen content; larvae; food intake; food conversion; biological development; mortality; fecundity; host plants; plant pests; North Carolina
Abstract:
... Effects of ozone (O3) stress of potato, Solanum tuberosum L., on fecundity, larval growth and survival of Colorado potato beetles, Leptinotarsa decemlineata (Say), were measured in greenhouse and field experiments. Chronic O3 exposure caused moderate to severe foliar injury on an O3-sensitive cultivar ('Red Norland') but caused only minor injury an O3-resistant cultivar ('Superior'). Foliar injury ...
DOI:
10.1603/0046-225X-30.5.824

12. Estimating maximum mean canopy stomatal conductance for use in models

Author:
Ewers, B.E.; Oren, R.; Johnsen, K.H.; Landsberg, J.J.
Source:
Canadian journal of forest research = 2001 v.31 no.2 pp. 198-207
ISSN:
0045-5067
Subject:
estimation; simulation models; canopy; stomatal conductance; irrigation water; soil water content; water vapor; irrigation; fertilizers; vapor pressure; sap flow; Pinus taeda; application rate; light; leaf conductance; North Carolina
Abstract:
... Fertilized (F) and irrigated and fertilized (IF) stands of Pinus taeda L. produced twice the leaf area index of irrigated (I) and control (C) stands. Based on sap flux-scaled mean stomatal conductance (G(S)), we found that stomatal conductance in F was half that in other treatments. During the growing season, G(S) was related to vapor pressure deficit (D) and soil moisture. During the cooler seaso ...
DOI:
10.1139/x00-159

13. Genetic Background and Environment Influence Palmitate Content of Soybean Seed Oil

Author:
G. J. Rebetzke; V. R. Pantalone; J. W. Burton; T. E. Carter; R. F. Wilson
Source:
Crop science 2001 v.41 no.6 pp. 1731-1736
ISSN:
0011-183X
Subject:
maturity groups; cultivars; Glycine max; alleles; chemical constituents of plants; air temperature; seed oils; field experimentation; genotype-environment interaction; palmitic acid; genetic variation; homozygosity; North Carolina
Abstract:
... Dietary concerns over high saturates contained in edible vegetable oils has stimulated development of soybean [Glycine max (L.) Merr.] cultivars with reduced palmitate content. Little is known of factors that might influence phenotypic expression of palmitate content among soybean populations varying for presence of a major reduced palmitate allele. The objective of this study was to investigate h ...
Handle:
10113/22719
DOI:
10.2135/cropsci2001.1731

14. Genetic relationships of common cocklebur accessions from the United States

Author:
Tranel Patrick J.; Wassom James J.
Source:
Weed science 2001 v.49 no.3 pp. 318-325
ISSN:
0043-1745
Subject:
Xanthium strumarium; DNA; polymerase chain reaction; genotype; genetic variation; genetic relationships; weed science; Kansas; Michigan; Illinois; Iowa; Ohio; Arkansas; South Carolina; Missouri; North Carolina; Mississippi
Abstract:
... DNA fragment analysis, based on amplification of intersimple sequence repeats by the polymerase chain reaction (ISSR-PCR), was used to assess genetic relationships of 217 U.S. accessions of common cocklebur. Twenty-four polymorphic markers were generated from six primers. Analysis of genetic similarity by clustering procedures resulted in separation of the accessions into two main clusters. Access ...
DOI:
10.1614/0043-1745(2001)049[0318:GROCCA]2.0.CO;2

15. History of toxic Pfiesteria in North Carolina estuaries from 1991 to the present

Author:
Burkholder, J.M.; Glasgow, H.B.
Source:
BioScience 2001 v.51 no.10 pp. 827-841
ISSN:
0006-3568
Subject:
fish kills; algae; toxins; fish; death; estuaries; North Carolina
DOI:
10.1641/0006-3568(2001)051[0827:HOTPIN]2.0.CO;2

16. A Hotelling‐Faustmann Explanation of the Structure of Christmas Tree Prices

Author:
Tomislav Vukina; Christiana E. Hilmer; Dean Lueck
Source:
American journal of agricultural economics 2001 v.83 no.3 pp. 513-525
ISSN:
0002-9092
Subject:
Christmas trees; agricultural economics; capital; markets; models; prediction; prices; tree age; trees; North Carolina
Abstract:
... We examine the relationship between a tree price and a tree age (height) using a Hotelling‐Faustmann type model of optimal plantation management, which accounts for the possibility of replanting and biological growth. The model predictions are tested using the data on Christmas tree prices in North Carolina collected in December 1997. The estimates show that, in general, the rates of change in pri ...
DOI:
10.1111/0002-9092.00174

17. Hurricane-Loaded Soil

Author:
Ross M. Tabachow; J. Jeffrey Peirce; Christian Essiger
Source:
Journal of environmental quality 2001 v.30 no.6 pp. 1904-1910
ISSN:
1537-2537
Subject:
Sus scrofa; air quality; emissions; floods; hurricanes; laboratory experimentation; municipal wastewater; nitric oxide; nitrogen; nitrogen fertilizers; ozone; phosphorus; soil; swine; total nitrogen; total solids; troposphere; wastewater treatment; watersheds; North Carolina
Abstract:
... The nitric oxide (NO) flux from eastern North Carolina soils subjected to flooding from hurricanes were studied in laboratory experiments. Three sites along the Neuse River basin in eastern North Carolina that sustained different intensities of flooding in September 1999 from Hurricane Floyd were examined. Hurricane Floyd impacted the Neuse River basin by inducing flooding that damaged and disable ...
DOI:
10.2134/jeq2001.1904

18. Impact of light-weight rolling on putting green performance

Author:
Hartwiger, C.E.; Peacock, C.H.; DiPaola, J.M.; Cassel, D.K.
Source:
Crop science 2001 v.41 no.4 pp. 1179-1184
ISSN:
0011-183X
Subject:
rolling; roots; bulk density; biomass; weight; mowing; soil compaction; application timing; golf courses; North Carolina
Abstract:
... The introduction of light-weight rollers has contributed to the reconsideration of the practice of rolling golf putting greens. Studies were conducted in 1993 and 1994 to determine the effects of rolling on soil bulk density, putting green speed, turf quality, root mass, and thatch mass. Experimental 'Penncross' creeping bentgrass (Agrostis stolonifera L.) putting greens built on a United States G ...

19. Influence of atmospheric CO2 enrichment on methane consumption in a temperate forest soil

Author:
Phillips, R.L.; Whalen, S.C.; Schlesinger, W.H.
Source:
Global change biology 2001 v.7 no.5 pp. 557-563
ISSN:
1354-1013
Subject:
carbon dioxide; mineralization; soil temperature; soil water content; nitrogen; methane; climate change; soil microorganisms; forest soils; oxidation; soil pH; microbial activity; forests; North Carolina
DOI:
10.1046/j.1354-1013.2001.00432.x

20. Intervertebral disk disease in 10 cats

Author:
Munana, K.R.; Olby, N.J.; Sharp, N.J.H.; Skeen, T.M.
Source:
Journal of the American Animal Hospital Association 2001 v.37 no.4 pp. 384-389
ISSN:
0587-2871
Subject:
intervertebral disks; spinal diseases; radiography; cats; prognosis; age; surgery; computed tomography; hernia
DOI:
10.5326/15473317-37-4-384
PubMed:
11450840