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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 Text Availability Full Text Remove constraint Text Availability: Full Text
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1. Concentration and detection of Cryptosporidium oocysts in surface water samples by method 1622 using ultrafiltration and capsule filtration

Author:
Simmons, O.D. III.; Sobsey, M.D.; Heaney, C.D.; Schaefer, F.W. III.; Francy, D.S.
Source:
Applied and environmental microbiology 2001 v.67 no.3 pp. 1123-1127
ISSN:
0099-2240
Subject:
water pollution; Cryptosporidium parvum; oocysts; ultrafiltration; water filters; surface water; detection; North Carolina
Abstract:
... The protozoan parasite Cryptosporidium parvum is known to occur widely in both source and drinking water and has caused waterborne outbreaks of gastroenteritis. To improve monitoring, the U.S. Environmental Protection Agency developed method 1622 for isolation and detection of Cryptosporidium oocysts in water. Method 1622 is performance based and involves filtration, concentration, immunomagnetic ...
DOI:
10.1128/AEM.67.3.1123-1127.2001
PubMed:
11229901
PubMed Central:
PMC92704

2. Distribution of ammonium-N in the water-soil interface of a surface-flow constructed wetland for swine wastewater treatment

Author:
Szogi, A.A.; Hunt, P.G.
Source:
Water science and technology : a journal of the International Association on Water Pollution Research 2001 v.44 no.11-12 pp. 157-162
ISSN:
0273-1223
Subject:
water pollution; soil pollution; ammonium nitrogen; overland flow; constructed wetlands; pig manure; wastewater treatment; wetland plants; nitrogen; nitrification; denitrification; volatilization; ammonia; diffusion; North Carolina
Abstract:
... Most livestock wastewaters treated in constructed wetlands are typically rich in ammonium N. The objective of this study was to evaluate the soil-water ammonium distribution and the diffusive flux through the soil-water interface. Wetland system 1 (WS1) was planted to rush and bulrushes, and wetland system 2 (WS2) was planted to bur-reed and cattails. Nitrogen was applied at a rate of 2.5 g m-2 d- ...
Handle:
10113/18526

3. Functional Classification of Swine Manure Management Systems Based on Effluent and Gas Emission Characteristics

Author:
J.A. Zahn; J.L. Hatfield; D.A. Laird; T.T. Hart; Y.S. Do; A.A. DiSpirito
Source:
Journal of environmental quality 2001 v.30 no.2 pp. 635-647
ISSN:
1537-2537
Subject:
effluents; ammonia; sulfur; emissions; methane production; waste treatment; odors; methane; hydrogen sulfide; storage; phosphorus; air pollution; pig manure; Iowa; Oklahoma; North Carolina
Abstract:
... Gaseous emissions from swine (Sus scrofa) manure storage systems represent a concern to air quality due to the potential effects of hydrogen sulfide, ammonia, methane, and volatile organic compounds on environmental quality and human health. The lack of knowledge concerning functional aspects of swine manure management systems has been a major obstacle in the development and optimization of emissi ...
Handle:
10113/14365
DOI:
10.2134/jeq2001.302635x
PubMed:
11285927

4. 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

5. Phenotypic Diversity of Modern Chinese and North American Soybean Cultivars

Author:
Zhanglin Cui; Thomas E. Carter; Joseph W. Burton; Randy Wells
Source:
Crop science 2001 v.41 no.6 pp. 1954-1967
ISSN:
0011-183X
Subject:
Glycine max; phenotype; pleiotropy; genetic distance; agronomic traits; agricultural programs and projects; phenotypic variation; pedigree; introgression; North Carolina
Abstract:
... Chinese and North American (NA) soybean breeding programs have a 70-yr history of genetic progress in relative isolation from each other. Because both programs rest upon a genetic base that is primarily Chinese in origin, the actual genetic distinctness of Chinese and NA breeding is not clear. The objectives of this study were to (i) develop a phenotypic similarity (PS) index for a large group of ...
Handle:
10113/22016
DOI:
10.2135/cropsci2001.1954

6. Seasonal occurrence and export of five herbicides from a North Carolina Coastal Plain watershed

Author:
Novak, J.M.; Watts, D.W.; Stone, K.C.; Johnson, M.H.
Source:
Transactions of the ASAE 2001 v.44 no.5 pp. 1201-1206
ISSN:
0001-2351
Subject:
water pollution; atrazine; cyanazine; agricultural land; herbicide residues; watersheds; losses from soil; streams; seasonal variation; metolachlor; alachlor; ametryn; coastal plains; North Carolina
Abstract:
... Herbicide detection in surface water sources has caused concern about contamination of these sources and adverse effects on human and aquatic health. Understanding surface water herbicide transport from agriculturally intensive watersheds is useful for development of herbicide best management practices to reduce off-site movement. The seasonal occurrence and load of five herbicides exported by a s ...
Handle:
10113/18427

7. State of the art for animal wastewater treatment in constructed wetlands

Author:
Hunt, P.G.; Poach, M.E.
Source:
Water science and technology : a journal of the International Association on Water Pollution Research 2001 v.44 no.11-12 pp. 19-25
ISSN:
0273-1223
Subject:
wastewater treatment; constructed wetlands; solids; wetland plants; nutrients; bioaccumulation; oxygen; nitrification; marshes; ponds; denitrification; anaerobic conditions; sediments; phosphorus; nitrogen; pig manure; cattle manure; overland flow; dairy cattle; carbon; case studies; North Carolina
Abstract:
... Although confined animal production generates enormous per-unit-area quantities of waste, wastewater from dairy and swine operations has been successfully treated in constructed wetlands. However, solids removal prior to wetland treatment is essential for long-term functionality. Plants are an integral part of wetlands; cattails and bulrushes are commonly used in constructed wetlands for nutrient ...
Handle:
10113/18524

8. Treatment of swine wastewater in marsh-pond-marsh constructed wetlands

Author:
Reddy, G.B.; Hunt, P.G.; Phillips, R.; Stone, K.; Grubbs, A.
Source:
Water science and technology : a journal of the International Association on Water Pollution Research 2001 v.44 no.11-12 pp. 545-550
ISSN:
0273-1223
Subject:
pig manure; wastewater; wastewater treatment; constructed wetlands; marshes; ponds; Typha latifolia; Scirpus; macrophytes; nitrogen; phosphorus; seasonal variation; North Carolina
Abstract:
... Swine waste is commonly treated in the USA by flushing into an anaerobic lagoon and subsequently applying to land. This natural system type of application has been part of agricultural practice for many years. However, it is currently under scrutiny by regulators. An alternate natural system technology to treat swine wastewater may be constructed wetland. For this study we used four wetland cells ...
Handle:
10113/18558

9. Variation among isolates of Fusarium graminearum associated with Fusarium head blight in North Carolina

Author:
Walker, S.L.; Leath, S.; Hagler, W.M. Jr.; Murphy, J.P.
Source:
Plant disease 2001 v.85 no.4 pp. 404-410
ISSN:
0191-2917
Subject:
Fusarium graminearum; cultivars; chemical composition; random amplified polymorphic DNA technique; tillage; geographical variation; fungal diseases of plants; strain differences; pathogenicity; zearalenone; Triticum aestivum; crop yield; genetic variation; crop rotation; deoxynivalenol; North Carolina
Abstract:
... Fusarium head blight (FHB) can reduce yield of wheat and decrease the value of harvested grain by accumulation of detrimental toxins. Understanding the variability of the fungal population associated with infection could improve disease control strategies. Sixty-six isolates of Fusarium graminearum associated with FHB were collected in North Carolina and tested for in vitro growth rate, in vitro p ...
Handle:
10113/23021
DOI:
10.1094/PDIS.2001.85.4.404

10. A thermal application range for postemergence pyrithiobac applications

Author:
Light Ginger G.; Dotray Peter A.; Mahan James R.
Source:
Weed science 2001 v.49 no.4 pp. 543-548
ISSN:
0043-1745
Subject:
Gossypium hirsutum; Amaranthus palmeri; air temperature; herbicides; weed control; heat sums; frequency; Texas; Mississippi; Arizona; North Carolina
Abstract:
... Pyrithiobac control of Palmer amaranth on the Texas Southern High Plains was correlated previously with temperature at the time of application. In the present study, the thermal dependence of pyrithiobac efficacy was used to define a thermal application range (TAR) for postemergence pyrithiobac applications. Several years of temperature data from four cotton-growing regions of the United States we ...
Handle:
10113/26615
DOI:
10.1614/0043-1745(2001)049[0543:ATARFP]2.0.CO;2