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Foreword [1993], Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

This is the front matter of the proceedings.

Hybrid Variation For Yield, Crude Protein, Feed Value And Percent Lysine Of Corn Grown In The 1991 Kentucky Hybrid Corn Performance Test, C. G. Poneleit, K. O. Evans, Michael Collins, D. O. Liptrap

Agronomy Notes

These data are the results from the second year of protein analyses of corn hybrids grown at three locations in the Kentucky Hybrid Corn Performance Test. These analyses were supported. by a grant from the Kentucky Corn Growers Association.

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1992, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1992 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 1992 crop season including: weather data, alfalfa cultivar yield test, soybean research, wheat breeding, oat research, corn breeding, small grain trials, evaluation of SEED PROD and CROP PROD, weed control research, cheatgrass control, weed control, and field evaluation of woody plant materials.

Assassin Bug, Alan H. Roe

All Archived Publications

No abstract provided.

What Are The Indirect Costs Of Pesticide Use?, Ted Evans

All Archived Publications

No abstract provided.

Nebline, January 1993

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Bulletin 4247 - Introduction To Commercial Mushroom Growing, Margaret Graham

Bulletins 4000 -

Mushroom cultivation began in Australia in the 1930s in the then incomplete and unused Circular Quay railway tunnel in Sydney. In the 1950s most mushrooms were grown in heaped or 'ridge-beds' of compost in disused railway tunnels.

In the last 15 to 20 years there has been considerable technical change in the method and degree of sophistication of mushroom cultivation techniques. Most growers have invested large sums of capital in specially designed and insulated buildings that control temperature, humidity and ventilation and where pest and disease prevention and control is less difficult.

The bag method also helps to alleviate pest …

Identification Of Plasmid And Chromosomal Copies Of 987p Pilus Genes In Enterotoxigenic Escherichia Coli 987, Thomas A. Casey, Robert A. Schneider, Evelyn A. Dean-Nystrom

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

A DNA probe derived from the subunit gene of a cloned 987P determinant was used to characterize the locations of the 987P genes in several Escherichia coli strains. We examined E. coli 987, a nonpiliated mutant of strain 987 (136) that does not express 987P in vitro, and a variant of I36 that expressed 987P following growth in vivo. We found that plasmid and chromosomal copies of the 987P subunit gene could be differentiated in strain 987 by restriction endonuclease analysis and Southern blot hybridization. The nonpiliated mutant 136 had lost the plasmid copy but retained the chromosomal copy of …

Mitochondrial Dna Sequence Divergence Among Meloidogyne Incognita, Romanomermis Culicivorax, Ascaris Suum, And Caenorhabditis Elegans, Thomas O. Powers, T. S. Harris, B. C. Hyman

Department of Plant Pathology: Faculty Publications

Mitochondrial DNA sequences were obtained from the NADH dehydrogenase subunit 3 (ND3), large rRNA, and cytochrome b genes from Meloidogyne incognita and Romanomermis culicivorax. Both species show considerable genetic distance within these same genes when compared with Caenorhabditis elegans or Ascaris suum, two species previously analyzed. Caenorhabditis, Ascaris, and Meloidogyne were selected as representatives of three subclasses in the nematode class Secernentea: Rhabditia, Spiruria, and Diplogasteria, respectively. Romanomermis served as a representative outgroup of the class Adenophorea. The divergence between the phytoparasitic lineage (represented by Meloidogyne) and the three other species is so great that virtually …

Influence Of Improvement Practices On Big Bluestem And Indiangrass Seed Production In Tallgrass Prairies, Robert A. Masters, Robert B. Mitchell, Kenneth P. Vogel, Steven Waller

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

Taligrass prairies provide a valuable source of diverse native plant germplasm. Seed harvested from native prairies can be used to revegetate highly erodible or marginal cropland and degraded rangeland if adequate quantities of seed can be produced. The effect of spring burning, fertilization, and atrazine [6-chloro-Nethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamine] on big bluestem (Andropogon gerardii Vitman var. gerardii Vitman) and indiangrass [Sorghastrum nutans (L.) Nash] reproductive stem density and seed production was determined in 9 tallgrass prairie environments (each year by site was considered a unique environment). Studies were conducted at tallgrass prairies near Bloomfield, Lincoln, and Virginia, Nebr., from 1987 through …

Stress Induced Protein Changes In Tall Fescue, R. L.G. Long, Lance T. Adams, J. D. Corely, Alvan A. Karlin, B. L. Parsons, Maurice G. Kleve, J. Henle

Journal of the Arkansas Academy of Science

Tall fescue (Festuca arundinacea Schreb.), the most important pasture grass in Arkansas, exhibits different agricultural properties when it is infected by its mutualistic endophyte Acremonium coenophialum Morgan-Jones and Gams. We postulate that the presence of endophyte exerts a stress on the host that enhances or detracts from the host's ability to express specific genes. We tested this hypothesis by heat stressing infected and non-infected, juvenile and mature tall fescue, and examining their protein profiles by SDS-PAGE analysis. The results indicate that mature, infected, stressed grass produced greater amounts of Rubisco (ribulose bisphosphate carboxylase-oxygenase) than all other treatments. Additionally, the mature, …

Role Of Endophytes In Tall Fescue, E. L. Piper, C. P. West

Journal of the Arkansas Academy of Science

Tall fescue (Festuca arundinacea Schreb.) is the most commonly grown cool season grass used for pastures in Arkansas. Most tall fescue contains a fungal endophyte (Acremonium coenophialum Morgan-Jones & Gams), which causes fescue toxicosis in livestock and costs cattle producers millions of dollars annually in lost production. Endophyte presence is known to reduce wild mammal populations in areas where tall fescue is prevalent. The endophyte spends its entire life cycle within the plant and is transmitted through the seed. The association is mutualistic with the plant providing nutrients for the endophyte and the endophyte conferring drought, insect, and nematode resistance …

Bulletin 4274 - Tree Planting On The High Rainfall Coastal Plain, Don Bennett, Richard George

Bulletins 4000 -

Careful planning can mean the difference between the success or failure of a tree planting program . Healthy , well-e stablished trees stand a better chance of survival, grow faster and are more resistant to insect attack. The need for time-consuming watering in summer is also eliminated.

The high rainfall coastal plain extends from Perth to Busselton and inland to the Darling Scarp. It receives about 800 to 1000 mm annual rainfall.

Site preparation is ideally started in summer. For a winter planting, decide before March where to plant, which varieties and how many trees to plant. Early planning allows …

Bulletin No 4247 - Introduction To Commercial Mushroom Growing, Margaret Graham

Bulletins 4000 -

No abstract provided.

Biology And Control Of Cattle Grubs, Philip J. Scholl

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

PERSPECTIVES AND OVERVIEW

Two species of cattle grubs (Diptera: Oestridae) affect cattle in the Northern Hemisphere: Hypoderma iineatum, the common cattle grub or lesser cattle warble fly, and Hypoderma bovis, the northern cattle grub or larger cattle warble fly. The word warble is Anglo-Saxon for boil.

Adults of the cattle grub are commonly known as heel flies, warble flies, bomb flies, or gad flies. This parasite has been observed and recorded for centuries (159), and Bracy Clark (50) cited and discussed references from Biblical times to Shakespeare. Scientific observations on the biology were first recorded in the 1700s …

Breeding Systems For Cross-Pollinated Perennial Grasses, K. P. Vogel, Jeffrey F. Pedersen

Department of Agronomy and Horticulture: Faculty Publications

I. Introduction

II. Reproductive and Breeding Characteristics

III. Breeding Systems

A. Ecotype Selection

B. Recurrent, RestricteclPhenotypic Selection

C. Half-sib Progeny Test

D. Between and Within Family Selection

E. Recurrent Multistep Family Selection

IV. Gains From Selection

A. Time Interval per Cycle

B. Potential Gain per Cycle .

C. Potential Inbreeding per Cycle

V. Polycrossing

VI. Hybrid Cultivars

VII. Conclusions

Literature Cited

Nebline, December 1992

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Comparison Of The Phosphate Requirements Of Burr Medic And Yellow Serradella With Subterranean Clover In The Low Rainfall Wheatbelt Of Western Australia, Blakely Paynter

Grain and Other Field Crops Research Articles

Burr medic (Medicago polymorpha) and yellow serradella (Ornithopus compressus) were compared with subterranean clover (Trifolium subterraneum) in their response to freshly topdressed phosphate in the low rainfall wheatbelt of Western Australia. Species were compared on the amount of applied phosphorus (P) required for 90% maximum yield and the ratio of their curvature coefficients from the Mitscherlich relationship between P applied and absolute yield. On marginally acidic, medium-textured soils, burr medic had a higher external shoot requirement for applied P than subterranean clover. Relative differences between the species were affected by season, initial concentration of bicarbonate-extractable P in the soil (0-10 …

The Prairie Naturalist Volume 24, No.4 December 1992

The Prairie Naturalist

NEW VASCULAR PLANT RECORDS FOR NORTIl DAKOTA ▪ B. L. Heidel, A. J. Duxbury, W.T. Barker, and J. R. Challey

GROWTH OF BLUEGILLS AND YELLOW PERCH IN SOUTH DAKOTA WATERS ▪ D.w. Willis, J.P. Lott, C.S. Guy, and D.O. Lucchesi

SEASONAL VARIATION IN SAMPLING DATA FOR WALLEYE AND SAUGER COLLECTED WITH GILL NETS FROM LAKE SAKAKAWEA, NORTH DAKOTA ▪ S.W. Mero andD.W. Willis

OBSERVATIONS ON NESTING OF THE AMERICAN BITTERN IN NORTIlWEST MINNESOTA ▪ W D. Svedarsky

FOOD HABITS OF MOURNING DOVES IN EAST CENTRAL SOUTH DAKOTA ▪ J.T. Van't Hul and J.A. Jenks

DISTRIBUTION OF TIlE PYGMY SHREW IN …

Nebline, November 1992

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Nebline, October 1992

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Weed Awareness

Visions For Agriculture, Department Of Agriculture, Western Australia

Agriculture reports

This workshop grew out of a conversation between Maurice Barnes, a Trayning farmer and member of the Research Advisory Committee of the Dryland Research Institute, and Steve Porritt, the officer in charge of the Dryland Research Institute at Merredin. Maurice was interested in the idea of posing the question 'What would agriculture be like if we had known as much about this landscape in 1829 as we know now?', to a group of farmers and others interested in the central wheatbelt and its future. Maurice saw this question as a first step toward achieving some shared vision for the future …

Structural Characterization Of Fucoidan And Its Role In The Hemizona Assay, Manish S. Patankar

Chemistry & Biochemistry Theses & Dissertations

Fucoidan is a polysaccharide commonly found in brown algae. It is a sulfated polymer of the monosaccharide L-fucose. Fucoidan is thought to function in water retention by algae. Commercially available fucoidan is extracted from a brown algae called Eurus vesiculosus.

This polysaccharide has immense potential as a biologically active agent: (i) it exhibits anticoagulant action, (ii) it has also been reported to block retroviral replication and (iii) it is capable of blocking sperm-egg binding in sea urchin, mouse and rabbit. Recently, fucoidan has also been shown to block the interaction of human sperm and egg in the hemizona assay …

Red Butte Canyon Research Natural Area: History, Flora, Geology, Climate, And Ecology, James R. Ehleringer, Lois A. Arnow, Ted Arnow, Irving B. Mcnulty, Norman C. Negus

Great Basin Naturalist

Red Butte Canyon is a protected, near pristine canyon entering Salt Lake Valley, Utah. It contains a well-developed riparian zone and a perennial stream; hillside vegetation ranges from grasslands on the lower limits to Douglas-fir and aspen stands at the upper elevations. In this paper we describe the history of human impact, natural history aspects of climate, geology, and ecology, and faunal and floral information for key species in the canyon. The role and importance of Research Natural Areas is discussed, particularly with respect to the need to protect Red Butte Canyon—one of the few remaining undisturbed riparian ecosystems in …

Worm Control In Sheep In Western Australia. Crack Down On Worms: An Information Guide For Advisers, Consultants, Livestock Personnel And Farmers, Department Of Agriculture, Western Australia

Animal production and livestock published reports

In Western Australia’s winter rainfall areas, the control of gastro-intestinal sheep worms is based on the strategic timing of drenches.

Sheep are drenched at a time that reduces the contamination of pastures with worm eggs and larvae in late summer and autumn. The timing of the drenches is particularly important for the control ofbrown stomach worms (Ostertagia species) and black scour worms (Trichostrongylus species)

Drenches given in late spring, when pasture is starting to dry off, and again in summer, successfully reduce pasture contamination in mid summer and autumn. A faecal egg count will determine the need and timing of …

Nebline, August 1992

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

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County Fair Special Edition

Nebline, July 1992

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

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Proceedings Of The Workshop Social Science Research And The Crsps, C. Milton Coughenour, John M. Yohe, Anne E. Ferguson, Jere L. Gilles, Jo Purcell

INTSORMIL Impacts and Bulletins

Contents

Executive Summary: A New Agenda for CRSP Social Science Research - C. Milton Coughenour . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Session 1

Developing a Strategic Research Agenda David G. Cummins, Chair

Framing a Strategic Research Agenda.-John Yohe ................ 3

Social Sciences and Collaborative Research: Toward an Agenda for the Social Sciences in Agriculture -Jere Lee Gilles ............... 7

Session 2

Technology Development and Sustaining Household Food Security Kathleen DeWalt, Chair

Technology Development and Household Food Security - …

Nebline, June 1992

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

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The Prairie Naturalist Volume 24. No.2 June 1992

The Prairie Naturalist

FIRST FLOWERING DATES AND FLOWERING PERIODS OF PRAIRIE PLANTS AT WOODWORTH. NORTH DAKOTA ▪ J. M. Callow, J A. Kanlrud, and K.F. Higgins

PROBABLE DISTRIBUTION OF THE WOODCHUCK IN NORTH CENTRAL KANSAS ▪ J.R. Choate and T. W. Haner

NEST AND NEST SITE CHARACTERISTICS OF SOME GROUND-NESTING NON-PASSERINE BIRDS OF NORTHERN GRASSLANDS ▪ H A. Kantrud and K.F. Higgins

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

COMPARISON OF SIZE STRUCfURE AND CATCH RATE FOR LARGEMOUTH BASS SAMPLES COLLECTED BY ELECTROFlSHING AND ANGLING ▪ DJ. Isaak, T.D. Hill, and D.W. Willis

MULE DEER HABITAT USE IN THE NORTH DAKOTA …