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Biomass And Nutrient Content Of Green Material The Size Of Medium And Large Litter, William E. Miller

Aspen Bibliography

No abstract provided.

Bvr-1, A Restriction Locus Of A Type C Rna Virus In The Feline Cellular Genome: Identification, Location, And Phenotypic Characterization In Cat X Mouse Somatic Cell Hybrids, Stephen J. O'Brien

Biology Faculty Articles

Somatic cell hybrids were constructed between BALB/c-RAG mouse cells and feline lymphoma cells by the hypoxanthine-aminopterin-thymidine selection scheme. RAG cells spontaneously produce an endogenous B-tropic type C virus. Cat-mouse hybrids preferentially segregate feline chromosomes and retain murine chromosomes,demonstrable by karyotypic and isozyme analyses. Despite the presence of the complete mouse genome, including the viral genome, virus production was diminished to 1-5% of the levels observed in RAG parents based upon particle-associated RNA-dependent DNA polymerase (reverse transcriptase) activity in the culture fluid. Thirty-seven hybrids made on four different occasions had suppressed virus levels, and no hybrids expressed parental virus levels. Reverse …

Capital Investment Requirements For A 500, 1,000 And 10,000 Head Cattle Feedlot, Robert Allen, Myron Eighmy, David Jibben

Economics Research Reports

The purpose of this study is to figure the fixed costs of constructing and equipping a 500, 1,000 or 10,000 cattle feedlot given certain assumptions and restrictions, and to analyze those costs in terms of economic efficiency. The fixed costs are divided into six areas of analysis: the equipment of the feedlot, the pole buildings, the concrete flooring for the pole buildings, the feedlot building materials, the feedlot storage equipment and the waste disposal.

Southeast South Dakota Experiment Farm Annual Progress Report, 1976, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This sixteenth annual report of the research program at the Southeast South Dakota Experiment Farm has special significance for those engaged in agriculture and the agriculturally related businesses in the nine county area of southeast South Dakota. Reports in this document include information on: temperatures and precipitation data, corn breeding and performance, soybean research and planting, crop rotation, grain trials, and animal waste disposal.

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1976, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1976 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1976 crop season including: weather data, weed control for crop production, tillage and fertility experiments, winter wheat, and small grain variety trials.

West River Agricultural Research And Extension Center Progress Report, 1976, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1976 annual progress report of the West River Crops Soils Research and Extension Center, South Dakota Agricultural Experiment Station. This report includes: a weather summary, small grain variety trials, specialty crop variety trials, sorghum variety testing, irrigated alfalfa trials, water management trials, management, tillage and cultural practices, fertilizer studies on spring wheat, crop disease control, and plot information.

Telorchis Gutturosi Sp. N. (Trematoda: Telorchiidae) From Graptemys Pseudogeographica Gray In Nebraska, With Reports Of Additional Species Of Trematodes From Nebraska Turtles, Daniel R. Brooks, Monte A. Mayes

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

One species of digenean is described and 8 others reported from turtles in Nebraska. Telorchis gutturosi, described from Graptemys pseudogeographica, resembles T. stossichi, T. pseudoaculeatus, and T. pleroticus in having an acetabulum significantly smaller than the oral sucker, but differs by possessing a pharynx which is as large as the acetabulum and having the ovary only 1/10 the body length from the acetabulum. Telorchis necturi is considered the senior synonym of T. cryptobranchi; Graptemys pseudogeographica is a new host. Hapalorhynchus stunkardi is reported for the first time since its description. Based on new morphological evidence, …

Two Tetraphyllidean Cestodes From The Freshwater Stingray Potamotrygon Magdalenae Dumeril 1852 (Chondrichthyes: Potamotrygonidae) From Colombia, Daniel R. Brooks, Thomas B. Thorson

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Two new tetraphyllidean cestodes are described from the freshwater stingray Potamotrygon magdalenae from Colombia. The new genus Potamotrygonocestus is proposed for P. magdalenensis, which differs from Pedibothrium by having a bilobed rather than X-shaped ovary, and simple rather than bifid hooks. It further differs from Pachybothrium hutsoni by having bothridial hooks inserted immediately posterior to an accessory sucker rather than inserted in the middle of a thick muscular pad. Potamotrygonocestus magdalenensis is unique among known tetraphyllideans by possessing vitellaria which are compact, cylindrical bands in the lateral portions of the middle of the proglottid. The second new species, Rhinebothrium …

Agricultural Experiment Station News December 1976

Agricultural Research Division: News and Annual Reports

CONTENTS:
PROTECTION OF HUMAN SUBJECTS
OVERTIME PAY
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
FROM THE DIRECTOR'S DESK
AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – NOVEMBER 1976

A Bibliography Of Taxonomic Literature Of The Great Plains Flora, With Supplements I, Ii, And Iii, Ralph E. Brooks

School of Biological Sciences: Faculty Publications

There is at present no recent comprehensive manual of the Great Plains flora. Consequently, students of the flora must utilize monographs, revisions, and other sources in their work. This bibliography was compiled in order to facilitate location of available literature, and will be useful to anyone interested in the systematics of the plants of the Great Plains. This compilation was produced for the Great Plains Flora Association as an initial step in the preparation of a major flora for the region.

References to the plants of the Great Plains region as recognized in the Atlas of the Great Plains Flora …

Whole Issue Nebraska Bird Review (December 1976) 44(4)

Nebraska Bird Review

Table of Contents

Food Remains from a Barn Owl Nest in Nebraska ........................54

1976 Fall Field Day ........................57

Parasitic (?) Jaeger at Lake Manawa, Iowa ........................58

Book Reviews ........................59

Notes ........................60

Index of Volume XXX XIV ........................62

The Prairie Naturalist Vol. 8, Nos. 3 And 4 September-December 1976

The Prairie Naturalist

SPRING MORTALITY OF INSECTIVOROUS BIRDS IN SOUTHERN MANITOBA ▪ J. R. Serie and R. E. Jones

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1976 ▪ R. N. Randall

MOSSES OF THE GREAT PLAINS: INTRODUCTION AND CATALOGUE ▪ S. P. Churchill

NOTES

Fulvous Tree Duck in North Dakota ▪ L. A. Jones

Unusual Mortality of a Saw-whet Owl ▪ H. A. Kantrud

Cardinal and Mockingbird in Jamestown, North Dakota ▪ D. H. and J. E. Johnson

BOOK REVIEWS

Essence of Wilderness ▪ K. T. Killingbeck

The Changing America ▪ L. M. Kirsch

A Government Bird Book ▪ J. F. Cassel

Wildflowers ofthe Rockies …

Biological And Chemical Evaluation Of The Aquatic Environment Of Selected Undeveloped Kentucky Lake Embayments, Marshall Gordon, Morgan E. Sisk

KWRRI Research Reports

This report describes research involving biological and chemical analysis of two undeveloped embayments on Kentucky Lake, namely Anderson and Vickers Bays. Field and laboratory studies were made to assess current biotic standing crops, limnological conditions, levels of inorganic and organic pollutants in the embayments.

Biology And Management Of River Herring And Shad In Virginia : Completion Report 1974-1976, Joseph G. Loesch, William H. Kriete Jr.

Reports

This presentation is the final report for the 3-year segment 1974 to 1976 and is also the annual report for the contract period 1 October 1975 to 30 September 1976. It is the ninth report for the continuing VIMS investigations of river herring and shad in Chesapeake Bay. Previous 3-year completion reports were presented in 1970 and 1973.

Ultrastructure Of The Sporocyst Wall During Excystation Of Isospora Endocallimici, Clarence A. Speer, Alan A. Marchiondo, Donald W. Duszynski, Sharon K. File

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Sporocysts of Isospora endocallimici, a parasite of marmosets, were exposed to minimal essentials medium (MEM) or a trypsin-bile salt solution (TBS) and then fixed and prepared for trans- mission electron microscopy. Excystation occurred in TBS but not MEM. The sporocyst wall has 2 layers, a thin outer layer (15 to 110 nm thick) and a thick inner layer (65 to 180 nm thick), which is composed of 4 separate curved plates. The outer layer consists of 1 to 3 membranes interspersed with lipid droplets. In the inner layer, a thin layer of material connects the peripheral margins of 2 …

Some Platyhelminth Parasites Of Sirens (Amphibia: Sirenidae) From North America, Daniel R. Brooks, Richard L. Buckner

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A new genus and species of digenean and a new species of cestode are described and a previously described species of digenean reported for the first time from Siren intermedia from Illinois. A new genus is proposed for a previously described digenean, and another known species of digenean reported from Siren lacertina in Florida. Progorgodera foliata from S. intermedia has a foliate hind- body characteristic of members of Phyllodistomum and multiple testes arranged in 2 longitudinal rows characteristic of members of Gorgodera. Ophiotaenia sireni from the same host resembles O. filaroides in number of testes, O. amphiumae and O. …

Ultrastructure Of Interlamellar Henneguya Exilis In The Channel Catfish, William L. Current, John J. Janovy Jr.

John Janovy Publications

Ultrastructural aspects of interlamellar Henneguya exilis infections in channel catfish are reported. The plasmodium wall of this form differs from that of other species in that it is composed of two outer unit membranes which give rise to a zone of numerous pinocytic canals. Single-membraned canals appeared to be a stable feature of the wall while double-membraned canals are interpreted as those actively carrying out pinocytosis. Evidence suggests that host cellular cytoplasm as well as interstitial material is taken in by plasmodia. Plasmodium wall integrity, aggregation of parasite ectoplasmic components, numbers of pinocytic canals, and number of mitochondria proximal to …

Results Of The Sixth International Winter Wheat Performance Nursery Grown In 1974, K. D. Wilhelmi, S. L. Kuhr, V. A. Johnson, P. J. Mattern, J. W. Schmidt

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This is the sixth report of results from an International Winter Wheat Performance Nursery (IWWPN) organized in 1968 by the Nebraska Agricultural Experiment Station and the Agricultural Research Service, U. S. Department of Agriculture, under a contract with the Agency for International Development, U.S. Department of State. The Nursery was designed to (1) test the adaptation of winter wheat cultivars in a range of latitudes, daylengths, fertility conditions, water management, and disease complexes; (2) identify superior winter cultivars to serve as recipient genotypes for high protein and high lysine genes, and (3) test the degree of expression and stability of …

Evaluation Of Glyphosate In No-Till Double Crop Soybeans Using Varying Volumes & Pressures, Charles Rogers

Masters Theses & Specialist Projects

No-tillage production of crops has developed and become widespread since the late 1950/s. No-till is dependent upon the use of broad spectrum herbicides to kill weeds already growing at planting time. Until recently, this has almost exclusively been paraquat (1,1'-dimethy1-4,4'-bipyridinium ion). Glyphosate [N-(phosphonomethyl)glycine] is a new herbicide which has great potential for use in no -tillage production.

Soybeans (Glycine max L.) were planted in the stubble after wheat (Triticum aestivum L.) was harvested. All plots received applications of the residual herbicides alachlor [2-chioro-2',6'-diethyl-N-(methoxymethyl)acetanilide] and linuron [3-(3,4-dichlorophenv1)-1-methoxy-1-methylurea]. Each plot also received either paraquat or glyphosate or was designated as …

Effects Of Time Of Application Of Glyphosate In The Control Of Johnsongrass, Marlin Moody

Masters Theses & Specialist Projects

Investigations were conducted to determine the effects of the herbicide glyphosate and its time of application on the control of johnsongrass.

Johnsongrass plots were divided into areas designated undisturbed, spring plowed, and clipped. These areas were compared to determine differences in control of johnsongrass when using glyphosate with different management procedures. Glyphosate was applied at weekly intervals and treatment effects were statistically analyzed. There were three replications of each treatment.

It appears from the results that:

1. Glyphosate kills approximately 100% of the johnsongrass topgrowth regardless of the application date.

2. Height of the johnsongrass plant at the time of glyphosate application …

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Reproductive Performance Of Swine Bred To Produce Purebred And Two-Breed Cross Litters, L. D. Young, R. K. Johnson, I. T. Omtvedt

Department of Animal Science: Faculty Publications

These data included the records of 818 purebred gilts and sows of Duroc, Hampshire and Yorkshire breeding mated to produce all purebreds and all possible two-way crosses. A total of 212 gilts were slaughtered 30-day postbreeding (72 purebred matings and 140 crossbred matings) to evaluate ovulation rate, number of live embryos, average embryo length and embryo survival rate. A total of 450 litters (161 purebred and 289 crossbred) were farrowed to evaluate litter size, litter weight and average pig weight at O, 21 and 42 days postfarrowing. Litters were farrowed in the spring and fall of 1971 and 1973 and …

An Investigation Into The History And Ownership Of Adams Island, N. Bartlett Theberge

Reports

No abstract provided.

Growth Analysis Of Tall Fescue Genotypes Differing In Yield And Leaf Photosynthesis, Wallace Wilhelm, C. J. Nelson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Leaf growth, dry matter distribution , and carbohydrate content of four tall fescue (Festuca arundinacea Schreb.) genotypes selected for high and low net C02 exchange (NCE) and forage yield were studied in controlled environments t o evaluate the leaf NCE-yield relationship. High yield genotypes produced greater amounts of all plant parts and carbohydrate than the low yield genotypes. Within each yield level the high NCE genotypes produced more dry matter and carbohxdrate. Leaf growth of all genotypes was linear throughout light and dark periods, but rates were 50% greater for high yield genotypes, RGR was similar for all genotypes. NAR …

Nitrate Reductase Activity In Tall Fescue, D. D. Randall, Wallace Wilhelm, R. F. Feuers, C. J. Nelson

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

An in vitro assay for tall fescue leaf nitrate reductase activity (NRA) was established that required either O.5 % casein or polyvinylpyrrolidone in the extraction medium for maximal activity. Leaf NRA was proportional to light intensity and fertility levels. Mature tissue and high temperature decreased NRA. NRA showed significant genetic variability in broadly based genotypes and genotypes selected for photosynthetic rates and forage yields. However, progeny of the latter did not show significant genetic variability. High coefficients of variation (30-50%) among the heterogeneous progeny may have masked true genetic differences. No significant correlations were found between NRA and photosynthesis or …

Farm Home And Ministers' Institute Program November 5 1976, Tennessee State University

Farm Home and Ministers' Institute Program

No abstract provided.

Kentucky Warbler (Vol. 52, No. 4), Kentucky Library Research Collections

Kentucky Warbler

No abstract provided.

Farm And Home Bulletin November 1976, Tennessee State University

Farm and Home Bulletin

No abstract provided.

Dredged Material Disposal In Coastal Wetland Environments: A Review Of The General Ecology And Environmental Impacts Of Disposal On Wetland Ecosystems With Recommendations For Assessment Procedures, Richard L. Wetzel, William M. Rizzo, George M. Dawes, Robert W. Middleton

Reports

No abstract provided.

Agricultural Experiment Station News November 1976

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE ACTING DIRECTOR'S DESK
GREETINGS FROM THE FROLIKS
PERSONNEL ACTIONS
GRANTS AND CONTRACTS
GENERAL NOTES
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS – October 1976
BULLETINS PRINTED

The Effects Of Tropical Storm Agnes On The Chesapeake Bay Estuarine System, Chesapeake Research Consortium

Reports

No abstract provided.