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The Prairie Naturalist Volume 23, No. 4. December 1991
The Prairie Naturalist Volume 23, No. 4. December 1991
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
CONTENTS
KENTUCKY BLUEGRASS RESPONSE TO BURNING: INTERACTIONS BETWEEN FIRE AND SOIL MOISTURE ▪ G. W. Blankespoor and B. S. Bich
FORAGE PRODUCTION AND USE ON BIGHORN SHEEP WINTER RANGE
FOLLOWING SPRING BURNING IN GRASSLAND AND PONDEROSA PINE HABITATS ▪ T. G. Easterly and K. J. Jenkins
SHORT-TERM MORTALITY OF SMALLMOUTH BASS CAUGHT DURING A LIVE-RELEASE TOURNAMENT AT LAKE OAHE, SOUTH DAKOTA ▪ J. J. Jackson and D. W. Willis
CRAYFISH IN SAND LAKE NATIONAL WILDLIFE REFUGE ▪ C. D. Dieter
PIPING PLOVERS NEST ON DRY …
Nebline, December 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
Home Extension News
On-the-Grow: Horticulture News & Recommendations
The Cloverline: 4-H News and Events
Extension Calendar
and other extension news
Viruses And Virus-Like Particles Of Eukaryotic Algae, James L. Van Etten, Leslie C. Lane, Russel H. Meints
Viruses And Virus-Like Particles Of Eukaryotic Algae, James L. Van Etten, Leslie C. Lane, Russel H. Meints
Department of Plant Pathology: Faculty Publications
TABLE OF CONTENTS:
INTRODUCTION
CHARACTERISTICS OF CHLORELLA SPECIES
General Properties of Chlorella Species
Symbiotic Chlorella Species
Chlorella Strains NC64A, Nla, Pbi, and SAG-241-80
DISCOVERY OF CHLORELLA VIRUSES
Initial Observations
Development of a Culturable System for PBCV-1
PROPERTIES OF CHLORELLA VIRUSES
General Characteristics of PBCV-1
Composition of PBCV-1
PBCV-1 Genome
Serology of PBCV-1
Additional Chlorella Strain NC64A Viruses
Viruses Infecting Chlorella Strain Pbi
REPLICATION OF PBCV-1
Attachment of PBCV-1 to Chlorella Strain NC64A
Intracellular Site of PBCV-1 Replication
Effect of PBCV-1 Infection on Host DNA, RNA, and Protein Syntheses
TRANSCRIPTION OF PBCV-1
VIRUSES ENCODE DNA METHYLTRANSFERASES AND DNA SITE-SPECIFIC (RESTRICTION) ENDONUCLEASES …
Maize Hybrid Response To Tillage Under Irrigated And Dryland Conditions, Wallace Wilhelm, Mark Reed Hinze, C. O. Gardner
Maize Hybrid Response To Tillage Under Irrigated And Dryland Conditions, Wallace Wilhelm, Mark Reed Hinze, C. O. Gardner
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
The popularity of reduced-tillage cropping systems has emphasized the need to determine if maize (Zea mays L.) developed under conventional tillage systems (moldboard plow, disk, and harrow) is readily adaptable to conservation production systems (greater than 30% residue cover after planting). Past research has indicated that crops grown under conservation production systems are subjected to cooler and wetter soil conditions than crops grown with conventional tillage practices. Information is needed to determine if a significant interaction exists between tillage and hybrid in maize. Field experiments were conducted in 1982 and 1983 near Lincoln, Nebraska, U.S.A., on an Abruptic Argiaquoll and …
Nebline, November 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Describing And Quantifying Growth Stages Of Perennial Forage Grasses, K. J. Moore, Lowell E. Moser, Kenneth P. Vogel, Steven S. Waller, B. E. Johnson, Jeffrey F. Pedersen
Describing And Quantifying Growth Stages Of Perennial Forage Grasses, K. J. Moore, Lowell E. Moser, Kenneth P. Vogel, Steven S. Waller, B. E. Johnson, Jeffrey F. Pedersen
Department of Agronomy and Horticulture: Faculty Publications
A system for identifying and quantifying the stages of growth and development of perennial forage grasses was developed. The system consists of a universal set of morphological descriptors for forage and range grasses and a continuous numerical index. The life cycle of individual grass tillers is divided into five primary growth stages (i) germination, (ii) vegetative, (iii) elongation, (iv) reproductive, and (v) seed ripening. Substages corresponding to specific morphological events are defined within each primary stage. Each growth stage consists of a primary and secondary stage and has both a mnemonic code and numerical index associated with it. The codes …
Nebline, October 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
Home Extension News
On-the-Grow: Horticulture News & Recommendations
The Cloverline: 4-H News and Events
Extension Calendar
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The Prairie Naturalist Volume 23, No. 3. September 1991
The Prairie Naturalist Volume 23, No. 3. September 1991
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
CONTENTS
ANTIPREDATOR BEHAVIOR OF MOUNTAIN PLOVER CHICKS ▪ T A. Sordahl
USING AERIAL MARKING FOR ASSESSING POPULATION DYNAMICS OF LATE SUMMER ROOSTING RED-WINGED BLACKBIRDS ▪ C. M. Linz, C. E. Knittle, J. L. Cummings, J. E. Davis, Jr. , D. L. Otis, and D. L. Bergman
DISPERSAL OF THE MEADOW JUMPING MOUSE IN NORTHERN KANSAS ▪ J. R. Choate, D. W. Moore, and J. K. Frey
DIET, HOME RANGE, MOVEMENTS, AND ACTIVITY PERIODS OF SWIFT FOX IN NEBRASKA ▪ T D. Hines and R. M. …
Nebline, September 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Acreage Resource Guide
Nebline, August 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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The County Fair Edition
Registration Of 'Trailblazer' Switchgrass, K. P. Vogel, Francis A. Haskins, Herman J. Gorz, B. A. Anderson, J. K. Ward
Registration Of 'Trailblazer' Switchgrass, K. P. Vogel, Francis A. Haskins, Herman J. Gorz, B. A. Anderson, J. K. Ward
Department of Agronomy and Horticulture: Faculty Publications
'Trailblazer' switchgrass (Panicum virgatum L.) (Reg. no. CV-146, PI 549094) was developed by the USDA-ARS and the Nebraska Agricultural Research Division, Department of Agronomy, University of Nebraska, and released in 1984 for use as a warm-season pasture grass in the Central Great Plains and adjacent midwestern states.
Proceedings International Sorghum And Millet Crsp Conference, Timothy Schilling, Gary Odvody, Gebisa Ejeta, Larry Claflin, Gary Peterson, Lloyd Rooney, Jerry Eastin, Joan Frederick
Proceedings International Sorghum And Millet Crsp Conference, Timothy Schilling, Gary Odvody, Gebisa Ejeta, Larry Claflin, Gary Peterson, Lloyd Rooney, Jerry Eastin, Joan Frederick
INTSORMIL Impacts and Bulletins
On behalf of the INTSORMIL Board of Directors, Principal Investigators and the Management Entity Office, it gives me great pleasure this moming to welcome you to this opening session of the 1991 INTSORMIL International SorghumIMlllet CRSP Conference.
INTSORMIL initiated the Biennial CRSP conference series in 1983. Attendance has grown with each meeting. Today we have 199 persons registered from 12 States in the U.S. and 27 different countries. There are representatives from three International Agricultural Research Centers (lCRISAT, IFPRI, and ICRISAT), four private seed companies and the U.S. National Grain Sorghum Producers Association (NGSPA).
I look around this audience and …
Nebline, July 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Seed Weight Influence On Seedling Hydrocyanic Acid Potential In Sorghum, J. F.S. Lamb, Francis A. Haskins, Herman J. Gorz, K. P. Vogel
Seed Weight Influence On Seedling Hydrocyanic Acid Potential In Sorghum, J. F.S. Lamb, Francis A. Haskins, Herman J. Gorz, K. P. Vogel
Department of Agronomy and Horticulture: Faculty Publications
Grain sorghum [Sorghum bicolor (L.) Moench) typically produces larger seeds than sudangrass [S. bicolor, formerly S. sudanense (Piper) Stapf); and grain sorghum seedlings are higher in hydrocyanic acid potential (HCN-p) than sudangrass seedlings. Previous studies have shown a seed-parent effect on seed weight and HCN-p in reciprocal F1 hybrids of sorghum X sudangrass. This study was conducted to determine whether the seed-parent effect on HCN-p could be attributed primarily to the difference in seed size between reciprocal sorghum X sudangrass hybrids. Large and small seeds of low-HCN-p sudangrass, high-HCN-p sorghum, and their reciprocal hybrids, were visually …
Regulation Of Biotechnology, Henry I. Miller, Robert H. Burris, Anne K. Vidaver
Regulation Of Biotechnology, Henry I. Miller, Robert H. Burris, Anne K. Vidaver
Department of Plant Pathology: Faculty Publications
Greg Simon (Letters, 3 May, p. 629) makes the case that only federal regulation of releases of agricultural products will address health and safety concerns. Such a view is hardly surprising, since he drafted the federal statute for the comprehensive regulation of field research with recombinant DNA-manipulated organisms. The basic assumptions of this statute were contrary to those contained in the reports of the National Academy of Sciences (NAS) (1) and the National Research Council (NRC) (2) and also to the existing policies of government research and regulatory agencies. The statute would have regulated only those organisms that were manipulated …
The Prairie Naturalist Volume 23, No. 2. June 1991
The Prairie Naturalist Volume 23, No. 2. June 1991
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Sea bloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
CONTENTS
SMALLMOUTH BASS SIZE STRUCTURE AND CATCH RATES IN FIVE SOUTH DAKOTA LAKES AS DETERMINED FROM TWO SAMPLING GEARS ▪ C. L. Milewski and D. W. Willis
REPRODUCTION BY FISHES IN A HEADWATER STREAM FLOWING INTO GRAYROCKS RESERVOIR, WYOMING ▪ W. A. Hubert and D. T O’Shea
ENVENOMATION AND ACQUISITION OF CHEMICAL INFORMATION BY PRAIRIE RATTLESNAKES ▪ D. Chiszar, C. Hobika, H. M. Smith, and J. Vidaurri
MOVEMENTS AND HABITAT USE BY WILD TURKEY HENS WITH BROODS IN A GRASSLAND-WOODLAND MOSAIC IN THE NORTHERN …
Nebline, June 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Relative Environmental Adaptation Of Bell Pepper Cultivars Across Three Southeastern States [Abstract], Laurie Hodges, Douglas C. Sanders, Katharine B. Perry
Relative Environmental Adaptation Of Bell Pepper Cultivars Across Three Southeastern States [Abstract], Laurie Hodges, Douglas C. Sanders, Katharine B. Perry
Department of Agronomy and Horticulture: Faculty Publications
Four commercially available bell pepper cultivars (Capsicum annum L.) were evaluated for yield stability over a combination of 3 years, 3 planting dates, and 7 locations across the Carolinas and Georgia.
Nebline, May 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Defoliation Effects On Yield And Bud And Tiller Numbers Of Two Sandhills Grasses, J. Jeffrey Mullahey, Steven S. Waller, Lowell E. Moser
Defoliation Effects On Yield And Bud And Tiller Numbers Of Two Sandhills Grasses, J. Jeffrey Mullahey, Steven S. Waller, Lowell E. Moser
Department of Agronomy and Horticulture: Faculty Publications
Intensive grazing strategies for the Nebraska Sandhills must be based on time and frequency of defoliation of key warm-season grasses. A 3-year field study was conducted in the Nebraska Sand-hills to determine the effects of defoliation on yield and bud and tiller number of sand bluestem [Andropogon gerardii var. paucipilus (Nash) Fern.] and prairie sandreed [Calamovilfa longifolia (Hook.) Scribn.]. Defoliation (7 cm) treatments imposed on a 1.5 X 1-m plot were: a single defoliation on 10 June, 10 July, or 10 August; 2 successive defoliations on 10 June and 10 August; or 3 successive defoliations on 10 June, …
Nebline, April 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
Home Extension News
On-the-Grow: Horticulture News & Recommendations
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Proceedings Of The 18th Annual Meeting, Southern Soybean Disease Workers (March 20-21, 1991, Lexington, Kentucky): National Perspective On Soybeans, Donald E. Hershman, J. Allen Wrather, Patrick D. Colyer, Gary W. Lawrence, Glenn G. Hammes
Proceedings Of The 18th Annual Meeting, Southern Soybean Disease Workers (March 20-21, 1991, Lexington, Kentucky): National Perspective On Soybeans, Donald E. Hershman, J. Allen Wrather, Patrick D. Colyer, Gary W. Lawrence, Glenn G. Hammes
Southern Soybean Disease Workers: Conference Proceedings
Contents
General session
Presidential address. DE Hershman
Keynote address. P O'Connell
Invited speakers
Major Soybean Diseases of the Midwest and Their Management. TS Abney
Major Soybean Diseases of the Southeast and Their Management. WF Moore
Disease Resistance in the Defense of Yield: A Commercial Breeders Perspective. HL Gabe
Graduate student papers
Effects of potassium fertilization and weed control on the severity.of anthracnose and pod and stem blight of soybeans in Louisiana. FG Barker, GT Berggren, and JP Snow
Inheritance of soybean SDS response in segregating F5 derived lines. WJ Matthews, VN Njiti, PT Gibson, and ML Shenaut
Selection of …
The Prairie Naturalist Volume 23, No. 1. March 1991
The Prairie Naturalist Volume 23, No. 1. March 1991
The Prairie Naturalist
Paul B. Kannowski, Editor
Nikki R. Seabloom, Assistant Editor
Douglas H. Johnson, Book Review Editor
CONTENTS
AGRICULTURAL LAND USE AND MOURNING DOVES IN EASTERN COLORADO: IMPLICATIONS FOR NESTING AND PRODUCTION IN THE GREAT PLAINS ▪ T E. Olson, C. E. Braun, and R. A. Ryder
DISTRIBUTION OF SANDHILL CRANES IN THE NORTH PLATTE RIVER VALLEY 1980 AND 1989 ▪ M. J. Folk and T. C. Tacha
NOCTURNAL BEHAVIOR OF SANDHILL CRANES ROOSTING IN THE PLATTE RIVER, NEBRASKA ▪ B. S. Norling, S. H. Anderson, and W A. Hubert
LEAD POISONING OF A MARBLED GODWIT ▪ L. N. Locke, M. R. …
Nebline, March 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Review Of Colorado Flora: Eastern Slope By William A. Weber., Robert B. Kaul
Review Of Colorado Flora: Eastern Slope By William A. Weber., Robert B. Kaul
Great Plains Research: A Journal of Natural and Social Sciences
All 2260 plant species of eastern-slope Colorado--from the continental divide east to the Nebraska and Kansas borders--can be identified using this book. That figure includes not only the native species but also the numerous introduced ones that survive without cultivation and often provide severe competition for the native flora. Much of Colorado's native plains flora was eliminated in the past century by plowing and by grazing livestock. It is largely replaced by a few durable native and many aggressive exotic species that thrive under those conditions, but remnants of the original flora exist on escarpments and in a few level …
Nebline, February 1991
NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County
Ag Update: Agricultural News & Events
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Size Differences Among Root-Knot Nematodes On Resistant And Susceptible Alyceclover Genotypes, L. E. Powers, R. A. Dunn, R. Mcsorley
Size Differences Among Root-Knot Nematodes On Resistant And Susceptible Alyceclover Genotypes, L. E. Powers, R. A. Dunn, R. Mcsorley
Department of Plant Pathology: Faculty Publications
The influence of plant resistance on the size of individual root-knot nematodes was determined in greenhouse experiments. Five genotypes of alyceclover were inoculated with second-stage juveniles of Meloidogyne incognita race 3 or M. arenaria race 1. Plants were harvested at selected intervals and stained for detection of the nematodes, which were dissected from the roots. Length, width, and sagittal-sectional area of each animal were measured using an image-analysis system, and areas of nematodes in all stages were compared at different times and across alyceclover lines. Nematodes feeding on roots of resistant lines were consistently smaller than those on susceptible plants, …
Soil Science Research Report - 1991
Soil Science Research Report - 1991
Soil Science Research Reports
Climate Weather Data Collection Points .......... 1
Weather Data 1991 Reported from Research Centers .......... 2
Flow of Water and Particles in Soils and Porous Media (D. Swartzendruber) .......... 9
Soil Respiration in Ridge Till (M. A. Liebig, A. J. Jones, J. W. Doran, and L. N. Mielke) .......... 11
Wheel Traffic Effects on Soil Properties in Ridge Till (M. A. Liebig, A. J. Jones, L. N. Mielke, and J. W. Doran) .......... 15
Fallout Cesium - 137 to Assess Soil Erosion (T. Oztas, A. J. Jones, L. N. Mielke and R. Grossman) .......... 21
Response of Wheat to Phosphorus …
A Three-Dimensional Field Study Of Solute Transport Through Unsaturated, Layered, Porous Media 1. Methodology, Mass Recovery, And Mean Transport, T. R. Ellsworth, W. A. Jury, F. F. Ernst, P. J. Shouse
A Three-Dimensional Field Study Of Solute Transport Through Unsaturated, Layered, Porous Media 1. Methodology, Mass Recovery, And Mean Transport, T. R. Ellsworth, W. A. Jury, F. F. Ernst, P. J. Shouse
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
A field experiment is reported which monitored the three-dimensional movement of cubic solute plumes through an unsaturated, loamy sand soil. The plumes were created with one of two methods, a two-dimensional flux application and an initial resident distribution. Soil coring was used to sample resident concentrations for the three solutes studied. The data were analyzed using the method of moments. In addition to the solute transport experiments, a detailed set of physical properties of the field was obtained by excavating three pits to a depth of 5.0m and also by taking soil cores throughout the study area. This paper explains …
Simulation Of Shoot Vegetative Development And Growth Of Unstressed Winter Wheat, Gregory S. Mcmaster, Betty Klepper, R. B. Rickman, Wallace Wilhelm, W. O. Willis
Simulation Of Shoot Vegetative Development And Growth Of Unstressed Winter Wheat, Gregory S. Mcmaster, Betty Klepper, R. B. Rickman, Wallace Wilhelm, W. O. Willis
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Mechanistic crop simulation models can aid in directing research and improving farm management. Recent research on winter wheat (Triticum aestivum L.) canopy development was consolidated into a model of aboveground vegetative development and growth called SHOOTGRO 1.0. The model assumes that water, nutrients, and light do not limit development and growth. Initial conditions of cultivar type (dwarf, semidwarf, mid-tall, and tall), seeding rate, planting depth and date, and latitude are inputs. Daily temperature, expressed as growing degree-days, drives SHOOTGRO 1.0. Processes are simulated with a daily time step. Computer code is standard Fortran 77. The morphological nomenclature used allows …