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1998

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Articles 331 - 360 of 1948

Full-Text Articles in Life Sciences

Morus Alba L., Matt Groves Jul 1998

Morus Alba L., Matt Groves

Specimens by Name

No abstract provided.


Verbena Hastata L., Annette Kessler Jul 1998

Verbena Hastata L., Annette Kessler

Specimens by Name

No abstract provided.


Parthenocissus Quinquefolia (L.) Planch., Matt Groves Jul 1998

Parthenocissus Quinquefolia (L.) Planch., Matt Groves

Specimens by Name

No abstract provided.


Phylogenetic Relationships Within The Family Potyviridae: Wheat Streak Mosaic Virus And Brome Streak Mosaic Virus Are Not Members Of The Genus Rymovirus, Drake C. Stenger, Jeffrey S. Hall, Il-Ryong Choi, Roy C. French Jul 1998

Phylogenetic Relationships Within The Family Potyviridae: Wheat Streak Mosaic Virus And Brome Streak Mosaic Virus Are Not Members Of The Genus Rymovirus, Drake C. Stenger, Jeffrey S. Hall, Il-Ryong Choi, Roy C. French

Department of Plant Pathology: Faculty Publications

The complete nucleotide sequence of wheat streak mosaic virus (WSMV) has been determined based on complementary DNA clones derived from the 9,384-nucleotide (nt) RNA of the virus. The genome of WSMV has a 130-nt 5&#;&#;leader and 149-nt 3&#;-untranslated region and is polyadenylated at the 3&#;&#;end. WSMV RNA encodes a single polyprotein of 3,035 amino acid residues and has a deduced genome organization typical for a member of the family Potyviridae (5&#;-P1/HC-Pro/P3/6K1/CI/6K2/VPg-NIa/NIb/CP-3&#;). Because WSMV shares with ryegrass mosaic virus (RGMV) the biological property of transmission by eriophyid mites, WSMV has been assigned to the genus Rymovirus, of which RGMV is …


Cropwatch No. 98-15, July 2, 1998, Lisa Brown Jasa Jul 1998

Cropwatch No. 98-15, July 2, 1998, Lisa Brown Jasa

Crop Watch (1994–2005)

Inside

Field updates...................138

Wheat harvest...................138

Correction...................139

Insect update...................139

Irrigation/nitrogen book...................140

Clinic update...................140

First irrigation...................141

Using ET estimates...................141

GDD and ET data...................142


Reproductive Success Of Ospreys At Two Sites In Connecticut, Donna Christine O'Neill, Robert A. Askins Jul 1998

Reproductive Success Of Ospreys At Two Sites In Connecticut, Donna Christine O'Neill, Robert A. Askins

Biology Faculty Publications

Nest success rates and rates of fish delivery to nests were determined for two large Osprey populations in COlmecticut, one at Groton Reservoir, Groton, and one at Great Island, Old Lyme, during 1996 and 1997. Between 1993 and 1996 these Osprey populations had substantially different rates of nest success. Great Island Ospreys fledged few young while Groton Reservoir Ospreys had good nest success. During 1997, however, fledging rates were similar at the two sites. In 1996, low nest success at Great Island 'resuited from high predation rates, probably due to raccoons. The higher nest success rate at this site in …


Project Report No. 61, Observed Per-Acre Basal Area Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations, Andrew M. Burrow Jul 1998

Project Report No. 61, Observed Per-Acre Basal Area Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations, Andrew M. Burrow

Informal Project Reports

Individual plot data from the East Texas Pine Plantation Research Project were available for analysis in this study. Each plot consists of two subplots. Each subplot is considered an observation. The analysis was limited to individual observations ages 24 years and older. All observations are unthinned.


Project Report No. 60, Observed Per-Acre Volume Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations East Texas, Andrew M. Burrow Jul 1998

Project Report No. 60, Observed Per-Acre Volume Growth Trends, 28 Individual Observations, Unthinned Loblolly Pine Plantations East Texas, Andrew M. Burrow

Informal Project Reports

Individual plot data from the East Texas Pine Plantation Research Project were available for analysis in this study. Each plot consists of two subplots. Each subplot is considered an observation. The analysis was limited to individual observations ages 24 years and older. All observations are unthinned.

For each observation, cubic feet total stem wood and bark per acre was calculated.

Based on these values, MAI (mean annual increment) was calculated.

The values (plus observed trees per acre) are depicted in graphs on the next 28 pages.


Guidelines For Granting Aquaculture Leases., Fisheries Wa, Aquaculture Development Council, Aquaculture Council Of Wa Jul 1998

Guidelines For Granting Aquaculture Leases., Fisheries Wa, Aquaculture Development Council, Aquaculture Council Of Wa

Fisheries Management Papers

The Western Australian Government is committed to the development of aquaculture within a framework of environmental sustainability. This discussion paper will deal with issues related to the granting of leases for aquaculture and will set out a process for the management of aquaculture leases and associated licences. It will be the basis for presaring the draft Ministerial Policy Guidelines for the granting of aquaculture leases.


Molecular Analysis Of Bacterial Communities In A Three-Compartment Granular Activated Sludge System Indicates Community-Level Control By Incompatible Nitrification Processes, William Holben, Kazuhiko Noto, Tatsuo Sumino, Yuichi Suwa Jul 1998

Molecular Analysis Of Bacterial Communities In A Three-Compartment Granular Activated Sludge System Indicates Community-Level Control By Incompatible Nitrification Processes, William Holben, Kazuhiko Noto, Tatsuo Sumino, Yuichi Suwa

Biological Sciences Faculty Publications

Bacterial community structure and the predominant nitrifying activities and populations in each compartment of a three-compartment activated sludge system were determined, Each compartment was originally inoculated with the same activated sludge community entrapped in polyethylene glycol gel granules, and ammonium nitrogen was supplied to the system in an inorganic salts solution at a rate of 5.0 g of N liter of granular activated sludge(-1) day(-1). After 150 days of operation, the system was found to comprise a series of sequential nitrifying reactions (K, Note, T. Ogasawara, Y, Suwa, and T. Sumino, Water Res. 32:769-773, 1998), presumably mediated by different bacterial …


Center For Grassland Studies Newsletter, Summer 1998, Volume 4, No. 3 Jul 1998

Center For Grassland Studies Newsletter, Summer 1998, Volume 4, No. 3

Center for Grassland Studies: Newsletters

Contents:

Nebraska's Wetlands by Ted LaGrange,Nebraska Game and Parks Commission

Ashfall Fossil Beds: Record of an Ancient Grassland Ecosystem Preserved in Rock by Michael Voorhies, University of Nebraska State Museum

Wet Meadow Restoration at The Nature Conservancy's Speidell Tract by Chris Helzer, The Nature Conservancy

CGS Advisory Committee Tours Golf Course, Burned Grasslands, Fossil Beds and Ranch


Nebline, July 1998 Jul 1998

Nebline, July 1998

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Lancaster County Fair: yesterday, today and tomorrow
Pruning roses
Vegetable gardening in the fall
Bean leaf beetle
Summertime can be hazardous to trees
Thinning is important
Read the label before purchasing and using DEET
Household hazardous waste collection: July 25
A clean-up treasure hunt
The importance of water in your backyard
Wonders of wildlife
Did you know. . .
Scouting for rootworm beetles could save big $ next year
Plant turnips for fall grazing
Forage following wheat
On-farm biosolids research yields
Managing seeding year alfalfa
Acreage enterprises
Who are your neighbors?
Field day will feature high-value crops for small farms …


The Physiology Of Life-History Trade-Offs: Experimental Analysis Of A Hormonally Induced Life-History Trade-Off In Gryllus Assimilis, Anthony J. Zera, Jason Potts, Kari Kobus Jul 1998

The Physiology Of Life-History Trade-Offs: Experimental Analysis Of A Hormonally Induced Life-History Trade-Off In Gryllus Assimilis, Anthony J. Zera, Jason Potts, Kari Kobus

Anthony Zera Publications

Adult Gryllus assimilis given an analog of juvenile hormone exhibited reduced flight muscles and enlarged ovaries similar to those found in naturally occurring flightless individuals of species that are polymorphic for dispersal capability. Control and hormone-treated (flightless) G. assimilis did not differ in the amount of food consumed or assimilated on any of three diets that differed in nutrient quantity. Thus, enhanced ovarian growth of flightless individuals resulted from increased allocation of internal nutrients to reproduction (i.e., a trade-off) rather than from increased acquisition of nutrients. Compared with flight-capable controls, flightless G. assimilis also had reduced whole-organism respiration, reduced respiration …


Forage News [1998-07], Department Of Plant And Soil Sciences, University Of Kentucky Jul 1998

Forage News [1998-07], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

  • U.K. All Commodity Field Day
  • Fall Grazing School at Princeton
  • Hay Seminar at the State Fair
  • Native Warm Season Grass Field Day
  • Forage Council Gets Grazing School Grant from Department of Agriculture
  • Joint Field Day is the Cream of the Crop
  • Prepare Now for Fall and Winter Pastures
  • The Thirty Yard Journey
  • Leaves of Grass
  • Upcoming Events


Flea News 56 (July 1998), Robert E. Lewis Jul 1998

Flea News 56 (July 1998), Robert E. Lewis

Flea News

Miscellanea

Siphonaptera literature

Mailing list changes


Genetic Admixture And Gallbladder Disease In Mexican Americans, Marilyn Tseng, Robert C. Williams, Kurt R. Maurer, Moses S. Schanfield, William C. Knowler, James E. Everhart Jul 1998

Genetic Admixture And Gallbladder Disease In Mexican Americans, Marilyn Tseng, Robert C. Williams, Kurt R. Maurer, Moses S. Schanfield, William C. Knowler, James E. Everhart

Kinesiology and Public Health

Gallbladder disease is a common source of morbidity in the Mexican American population. Genetic heritage has been proposed as a possible contributor, but evidence for this is limited. Because gallbladder disease has been associated with Native American heritage, genetic admixture may serve as a useful proxy for genetic susceptibility to the disease in epidemiologic studies. The objective of our study was to examine thepossibility that gallbladder disease is associated with greater Native American admixture in Mexican Americans. This study used data from the Hispanic Health and Nutrition Examination Survey and was based on 1,145 Mexican Americans who underwent gallbladder ultrasonography …


Louisiana Agriculture Magazine, Summer 1998, Lsu Agricultural Experiment Station Jul 1998

Louisiana Agriculture Magazine, Summer 1998, Lsu Agricultural Experiment Station

Louisiana Agriculture

No abstract provided.


Gap Analysis Of The Vegetation Of The Intermountain Semi-Desert Ecoregion, David M. Stoms, Frank W. Davis, Kenneth L. Driese, Kelly M. Cassidy, Michael P. Murray Jul 1998

Gap Analysis Of The Vegetation Of The Intermountain Semi-Desert Ecoregion, David M. Stoms, Frank W. Davis, Kenneth L. Driese, Kelly M. Cassidy, Michael P. Murray

Great Basin Naturalist

A conservation gap analysis was conducted for the Intermountain Semi-Desert ecoregion to assess the representation of land-cover types within areas managed primarily for biodiversity objectives. Mapped distributions of plant communities were summarized by land-management status categories. The total amount of land permanently protected in the ecoregion is


Winter Macroinvertebrate Communities In Two Montane Wyoming Streams, Christopher M. Pennuto, Frank Denoyelles Jr., Mark A. Conrad, Frank A. Vertucci, Sharon L. Dewey Jul 1998

Winter Macroinvertebrate Communities In Two Montane Wyoming Streams, Christopher M. Pennuto, Frank Denoyelles Jr., Mark A. Conrad, Frank A. Vertucci, Sharon L. Dewey

Great Basin Naturalist

Macroinvertebrate communities were examined on 4 winter dates over a 4-yr period in 2 high-altitude Rocky Mountain streams to document overwintering assemblages potentially experiencing spring acid pulses. Taxa richness values were comparable to other published lists for alpine and montane stream systems despite the fact that most literature reflected summer collections. Mean benthic density ranged from 1406 to 19,734 organisms/m2, and drift rates ranged from 0 to 1740 organisms/100 m3. Benthic collections showed higher taxa richness than drift collections while the Ephemeroptera and Plecoptera occurred in greater proportions in drift than in benthos. The Nemouridae (Plecoptera), …


Pregnant With Ambiguity: Credibility And The Pto Utility Guidelines In Light Of Brenner, Andrew T. Kight Jul 1998

Pregnant With Ambiguity: Credibility And The Pto Utility Guidelines In Light Of Brenner, Andrew T. Kight

Indiana Law Journal

No abstract provided.


South Dakota Farm And Home Research, South Dakota State University Jul 1998

South Dakota Farm And Home Research, South Dakota State University

South Dakota Farm and Home Research: 1949 -1998

Director's comments: Consumers are the ultimate beneficiaries of agricultural research, but how do we convince them of the value of our work? [p] 2
Southeast South Dakota Experiment Farm: Questions answered lead to more questions asked. This exchange keeps farm "out front" in agricultural scientific issues. [p] 4
Southeast Farm adds value to swine industry: ·swine research at the station is expanding; latest addition is a hoop barn. [p] 7
The fat little research mouse: Who gets worked up about lab mice anyway? Producers do, when scientists show that mouse and pig have genes for meat quality in common. [p] …


Beyond The Harvard Mouse: Current Patent Practice And The Necessity Of Clear Guidelines In Biotechnology Patent Law, Carrie F. Walter Jul 1998

Beyond The Harvard Mouse: Current Patent Practice And The Necessity Of Clear Guidelines In Biotechnology Patent Law, Carrie F. Walter

Indiana Law Journal

No abstract provided.


Number 37 (July 1998), Southern Fishes Council Jul 1998

Number 37 (July 1998), Southern Fishes Council

Southeastern Fishes Council Proceedings

(July 1998) - Status of the ironcolor shiner, Notropis chalybaeus in Mississippi. By Brett Albanese and William T. Slack

Morphometric, meristic, and natural history notes on Menidia beryllina and M. peninsulae in a marginal sympatric area in Perdido Bay, Alabama and Florida. By Royal D. Suttkus and Maurice F. Mettee


Wilderness And Civilization: Two Decades Of Wilderness Higher Education At The University Of Montana, Laurie Yung, Bob Yetter, Wayne A. Freimund, Perry J. Brown Jul 1998

Wilderness And Civilization: Two Decades Of Wilderness Higher Education At The University Of Montana, Laurie Yung, Bob Yetter, Wayne A. Freimund, Perry J. Brown

Forest Management Faculty Publications

No abstract provided.


Comparison Of Observed And Simulated Grow-Finish Swine Performance Under Summer Conditions, Larry W. Turner, Thomas C. Bridges, Richard D. Coffey, Richard S. Gates, Gary R. Parker, Tami M. Brown-Brandl, Douglas G. Overhults Jul 1998

Comparison Of Observed And Simulated Grow-Finish Swine Performance Under Summer Conditions, Larry W. Turner, Thomas C. Bridges, Richard D. Coffey, Richard S. Gates, Gary R. Parker, Tami M. Brown-Brandl, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

As a part of a National Pork Producers Council educational program, our research and extension team at the University of Kentucky was linked with an independent commercial swine producer to test the NCPIG model against observed commercial on-farm data. This experience provided improved information for model development as well as increased producer insight into the data input needs and potential benefits of modeling. Detailed production information comparisons between the NCPIG model and producer data are presented for summer time conditions to assess the validity of the NCPIG model for simulation of grow-finish swine performance. Results demonstrated that the NCPIG model …


Quality Of Runoff From Plots Treated With Municipal Sludge And Horse Bedding, Elizabeth L. Busheé, Dwayne R. Edwards, Philip A. Moore Jr. Jul 1998

Quality Of Runoff From Plots Treated With Municipal Sludge And Horse Bedding, Elizabeth L. Busheé, Dwayne R. Edwards, Philip A. Moore Jr.

Biosystems and Agricultural Engineering Faculty Publications

Land application of horse stall bedding and municipal sludge can increase runoff concentrations of nutrients, organic matter, and bacteria as well as steroidal hormones such as estrogen. Concentrations of materials in runoff from sites treated with animal manure can be reduced by aluminum sulfate, or alum [Al2(SO4)3•14H2O] treatment. The objectives of this study were to assess plots treated with horse stall bedding or municipal sludge for: (a) runoff quality [concentrations of nitrate nitrogen (NO3-N), ammonia nitrogen (NH3-N), orthophosphate-phosphorus (PO4-P), fecal coliform (FC), chemical oxygen demand (COD) …


Adopting An Ecosystem Approach: Local Variability In Remedial Action Planning, Wendy A. Kellogg Jul 1998

Adopting An Ecosystem Approach: Local Variability In Remedial Action Planning, Wendy A. Kellogg

All Maxine Goodman Levin School of Urban Affairs Publications

Provides information on a study that describes the adoption of an ecosystem approach by lead agencies in two remedial action plans (RAP) for Great Lakes basin. Guidelines on what an ecosystem approach is; Account on International Joint Commission (IJC); Congruency between RAP processes with IJC articulation; How variability in local conditions shaped the innovation adoption process.


Growth Responses Of Warm-Season Tall Grasses To Dormant Season Management, Walter H. Schacht, Alexander J. Smart, Bruce Anderson, Lowell E. Moser, Richard J. Rasby Jul 1998

Growth Responses Of Warm-Season Tall Grasses To Dormant Season Management, Walter H. Schacht, Alexander J. Smart, Bruce Anderson, Lowell E. Moser, Richard J. Rasby

Department of Agronomy and Horticulture: Faculty Publications

A study on Conservation Reserve Program (CRP) land was established in southeastern Nebraska to determine the effect of dormant-season management on subsequent-year growth rates and yields of tallgrasses. The purpose of the management practices was removal of standing dead material and litter that negatively impact plant growth and grazing efficiency. Treatments consisted of a control with no residue manipulation and 5 residue manipulation practices including (1) October shredding and leaving residue; (2) October haying; (3) October intensive grazing; (4) March intensive grazing; and (5) spring prescribed burning. The study was conducted in 1994195 and 1995/96 on a switchgrass (Panicum …


Morphological Development Of 2 Warm-Season Grasses In The Nebraska Sandhills, J. R. Hendrickson, Lowell E. Moser, K. J. Moore, Steven S. Waller Jul 1998

Morphological Development Of 2 Warm-Season Grasses In The Nebraska Sandhills, J. R. Hendrickson, Lowell E. Moser, K. J. Moore, Steven S. Waller

Department of Agronomy and Horticulture: Faculty Publications

Morphological development of grasses has numerous implications to rangeland management including the timing and amount of herbivory. The objective of this study was to quantify the developmental morphology of prairie sandreed [Calamovilfa longifolia (Hook.) Scrihn.] and sand bluestem [Andropogon gerardii var. paucipilus (Nash) Fem.] tiller populations. Tier populations of these 2 grasses were studied for 2 years in the Nebraska Sandhills. Plant development was evaluated using a growth staging system which quantifies the development of tiller populations. A morphological growth index for each species was calculated from either the weighted average of tiller numbers reported as mean stage …


Prediction Of Leaf:Stem Ratio In Grasses Using Near Infrared Reflectance Spectroscopy, Alexander J. Smart, Walter H. Schacht, Jeffrey F. Pedersen, Daniel J. Undersander, Lowell E. Moser Jul 1998

Prediction Of Leaf:Stem Ratio In Grasses Using Near Infrared Reflectance Spectroscopy, Alexander J. Smart, Walter H. Schacht, Jeffrey F. Pedersen, Daniel J. Undersander, Lowell E. Moser

Department of Agronomy and Horticulture: Faculty Publications

Leaf:stem ratio of grass stands is an important factor affecting diet selection, quality, and forage intake. Estimates of leaf:stem ratios commonly are based on a labor intensive process of hand separating leaf and stem fractions. Near infrared reflectance spectroscopy (NIRS) has been used successfully to predict forage quality and botanical composition of vegetation samples. The objective of this study was to evaluate the use of NIRS to predict leaf:stem ratios in big bluestem (Andropogon gerardii Vitman), switchgrass (Punicum virgatum L.), and smooth bromegrass (Bromus inermis Leyss.). A total of 72 hand-clipped samples of each species was taken …