Life Sciences Commons^™

Bacteriocin-Like Substances Produced By Rhizobium Japonicum And Other Slow-Growing Rhizobia, D. C. Gross, A. K. Vidaver

Department of Plant Pathology: Faculty Publications

Bacteriocin-like substances were commonly produced by slow-growing Rhizobium japonicum and cowpea rhizobia on an L-arabinose medium. Antagonism between strains of R. japonicum was not detected in vitro; however, such strains were often sensitive to some bacteriocins produced by cowpea rhizobia. Inhibitory zones (2 to 8 mm from colony margins), produced by 58 of 66 R. japonicum test strains, were reproducibly detected with Corynebacterium nebraskense as an indicator. Quantitative production was not related to symbiotic properties of effective strains, since nine noninfective strains and one ineffective strain produced bacteriocin. Eight R. japonicum strains that did not produce bacteriocin nevertheless formed effective …

Lichenometric Distribution Of Rhizocarpon Geographicum On Mt. Washington: A Relative Dating Tool., Paul Andrew Mayewski, Peter A. Jeschke

Earth Science Faculty Scholarship

Excerpt from summary, p. 83: In addition to marking the distribution of snowpatches and the relative age of patterned ground features, local departures from the regional lichenometric trend may also be used to define and relatively date: changes in the distribution of soils and vegetation, avalanche deposits, and abrasion of hiking trails. Lichenometric studies will be undertaken in the following year to date more precisely features and events on Mount Washington.

Southeast South Dakota Experiment Farm Annual Progress Report, 1978, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This eighteenth 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, fertiilizers, and pest control.

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1978, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1978 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 1978 crop season including: weather data, tillage and fertility experiments, hay, haylage and silage production, small grain trials, grass testing, alfalfa testing, grain trials, and winter wheat breeding.

West River Agricultural Research And Extension Center Progress Report, 1978, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1978 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, sorghum variety testing, corn variety trial, and management, tillage and cultural practices.

Values And Management Strategies For Nonvegetated Tidal Wetlands, Louise Theberge, Donald F. Boesch

Reports

Part I. Values and Management Strategies for Nonvegetated Tidal Wetlands: A Summary

Part II. The Resource Ecology of Nonvegetated Wetlands: A Review

The Prairie Naturalist Volume 10, Number 4. December 1978

The Prairie Naturalist

THE ORNITHOGEOGRAPHY OF THE GREAT PLAINS STATES ▪ Paul A. Johnsgard

CAPTURE OF GRAY PARTRIDGE BY FALCONRY IN NORTH DAKOTA ▪ John W. Schulz

INCUBATION RHYTHMS AND EGG TEMPERATURES OF AN AMERICAN GREEN-WINGED TEAL AND A RENESTING PINTAIL ▪ Alan D. Afton

TEMPORAL PATTERNS OF SPRING MIGRATION OF YELLOW-HEADED BLACKBIRDS IN NORTH DAKOTA ▪ Richard D. Crawford

CHECKLIST OF NORTH DAKOTA MAMMALS: COMMENTS ON STATUS AND DISTRIBUTION OF SPECIES ▪ Robert W. Seabloom

NOTE

First Nesting Record of Cattle Egret and Little Blue Heron in North Dakota ▪ Lloyd A. Jones

BOOK REVIEWS

Geese of the World ▪ Carl E. …

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

Relationships between leaf photosynthesis and yield have not been well defined in forage grasses. Therefore, leaf growth, dry matter distribution, carbohydrate concentration, and growth analysis of four genotypes of tall fescue (Festuca mundinacea Schreb.) were examined. Genotypes, selected in the field for high and low CO₂ exchange rate (CER) in combination with high and low yield, were compared in an attempt to study the relationship between photosynthesis and yield.

In the vegetative growth stage, high yielding genotypes produced greater amounts of all plant parts (leaves, stem bases, and roots) than did low yielding genotypes; however, low yielding genotypes …

Relationship Of Physiologic Age, Hardening, And Carbon And Nitrogen Content To Tolerance Of Tomatoes To Metribuzin, Esther H. Nelson, Richard A. Ashley

Storrs Agricultural Experiment Station

No abstract provided.

Leaf Growth, Leaf Aging, And Photosynthetic Rate Of Tall Fescue Genotypes, Wallace Wilhelm, C. J. Nelson

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

Leaf growth and leaf aging both influence the total amount of CO, fixed by a particular leaf in the canopy during its photosynthetically productive life. Four genotypes of tall fescue (Festuca arundinacea Schreb.) were selected for all combinations of high and low COB exchange rates (CER) and yield. The purpose of this study was to determine CER during aging and leaf growth rates of tall fescue genotypes in growth chambers and in the field on a Mexico silt loam (Udollic Ochraqualfs; fine, montmarillonitic, mesic). Leaf growth of vegetative tillers in controlled environments was continuous throughout the day for all …

The Prairie Naturalist Vol. 10, No. 3. September 1978

The Prairie Naturalist

NOTES ON DISTRIBUTION OF THREE SPECIES OF MAMMALS IN SOUTH DAKOTA ▪ J. K. Jones, Jr., J. R. Choate and R. B. Wilhelm

A MID-CONTINENT IRRUPTION OF CANADA LYNX, 1962-63 ▪ H. L. Gunderson

CHECKLIST OF NORTH DAKOTA MAMMALS (REVISED) ▪ J. M. Wiebe and J. F. Cassel

DECLINE OF YEAR-CLASS STRENGTH OF BUFFALO FISHES IN LAKE SAKAKAWEA, NORTH DAKOTA ▪ D. W. Willis and J. B. Owen

NOTE

Pileated Woodpecker Eating Russian Olive Fruits ▪ R. S. McVoy

BOOK REVIEWS

Birds of the Prairie Provinces ▪ W. J. Maher

Wildlife of the Prairies ▪ C. R. Grondahl

Distribution Patterns …

Forage Quality Evaluations Of Twelve Grasses In Relation To Season For Grazing, L. C. Newell, W. J. Moline

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

A study of forage quality in relation to seasonal yield of important perennial forage grasses was initiated to provide information and to promote a better understanding of their best use for grazing. This information should be particularly valuable in planning seasonal use of pure stands or mixtures of grasses.

Results Of The Eighth International Winter Wheat Performance Nursery Grown In 1976, K. D. Wilhelmi, S. L. Kuhr, V. A. Johnson, P. J. Mattern, J. W. Schmidt

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

This is the eighth report of results from an International Winter Wheat Performance Nursery (IWWPN) organized in 1968 by the Nebraska Agricultural Experiment Station and the Science and Education Administration (SEA), 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 and stability of winter wheat cultivars in a range of latitudes, daylengths, fertility conditions, water management regimes, and disease complexes; (2) identify superior winter cultivars to serve as recipient genotypes for high protein and high lysine genes, (3) test the degree of expression …

Sulfur Fertilization Of Alfalfa And Corn On The Sandy Soils Of Nebraska, G. W. Rehm

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

Objectives of these studies were: 1. To determine the effect of various S fertilizers and rates of S application on the yield of both alfalfa and corn grown on sandy soils. 2. To determine the residual effects of a single application of S fertilizer on the production of alfalfa. 3. To measure the influence of S fertilizers and the rate of S applied on the S content of corn and alfalfa tissue and S uptake by these two crops. 4. To develop a soil testing procedure which accurately predicts the requirement for the application of S fertilizers to alfalfa and …

Carbon-L 4 Translocation In Three Warm- Season Grasses As Affected By Stage Of Development, Walter H. Fick, Lowell E. Moser

Department of Agronomy and Horticulture: Faculty Publications

Radioactive carbon dioxide was utilized to trace carbohydrate translocation in blue grama, sideoats grama, and switchgrass. Tagged tillers retained 77% of their fixed carbon following a 24-hour translocation period. The roots were the strongest sink of assimilate, receiving 76.2% of the total 14C translocated. The pre-elongated and elongated tiller fractions received 16.3% and 7.5% of the ¹⁴C translocated, respectively. Major differences among the grasses became evident upon examination of relative total activity (RTA) ratios in elongated/pre-elongated tillers and root/shoot fractions. Switchgrass produced many more elongated tillers and had the highest elongated/pre-elongated RTA ratio. Blue grama had the greatest weight …

Effects Of Row Width And Seeding Rate On Yield And Other Agronomic Characteristics Of Three Soybean Cultivars, Russell Kithcart

Masters Theses & Specialist Projects

Soybeans have traditionally been grown in rows wide enough to allow mechanical cultivation and to increase lodging resistance. Improved cultivars and herbicides have permitted farmers to obtain yield advantages from narrower rows. The growth response of soybeans to variations in row width and seeding rates depends upon the cultivar and geographic location.

“Williams,” “Mitchell,” and “Essex” cultivars were planted at row widths of 18, 36, 54, and 72cm. at seeding rates of 33, 67, 100 and 134 kg/ha in multi-row plots. Data were collected from each plot for seed yield, lodging, plant height, height of lowest pod, seed and population …

Bulletin No. 23: Plants And Animals Of The Estuary, William A. Niering, Paul E. Fell, Sally L. Taylor, Martine Villalard-Bohnsack, Nancy C. Olmstead

Bulletins

Descriptions and illustrations of over 70 estuarine species.

The Prairie Naturalist Vol. 10, No. 2. June 1978

The Prairie Naturalist

ANALYSIS OF THE FLEHMEN DISPLAY IN AMERICAN BISON (BISON BISON) ▪ B. R. Mahan, M. P. Munger and H. L. Gunderson

AVIAN MORTALITY CAUSED BY A SEPTEMBER WIND AND. HAIL STORM ▪ K. F. Higgins and M. A. Johnson

DISTRIBUTION OF TWO SPECIES OF LONG-EARED BATS OF THE GENUS MYOTIS ON THE NORTHERN GREAT PLAINS ▪ J. K. Jones, Jr. and J. R. Choate

ALFALFA AND THE OCCURRENCE OF FISSURES ON THE NORTH DAKOTA PRAIRIES ▪ J. P. Bluemle, A. E Kehew, E. A. Brostuen and K. L. Harris

NOTES

An Observation of Badger Predation on Richardson Ground Squirrels ▪ …

Irradiance Response Of Tall Fescue Genotypes With Contrasting Levels Of Photosynthesis And Yield, Wallace Wilhelm, C. J. Nelson

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

The purpose of this study was to determine if genotype by irradiance interactions or genetic variation in diurnal trends of CO, exchange rate (CER) influenced the CER-yield relationship in tall fescue (Festuca mundinucea Schreb.). Genotypes were selected in the field for high CER-high yield, high CER-low yield, low CER-high yield, and low CER-low yield. Responses of CER to photosynthetic photon flux density (PPFD) of these genotypes were determined using both growth chamber- and field-grown material. The shapes of the PPFD response curves were similar for all genotypes, and saturation occurred at approximately 1,200 μE m^-2 sec^-1 (400 …

Ecotypic Differentiation In Ohio & Mississippi Populations Of Acer Negundo L., Anthony Greco

Masters Theses & Specialist Projects

Laboratory investigations of Acer negundo populations from two widely separated habitats revealed distinct patterns of ecotypic differentiation in budbursting, leaf fall, and chlorophyll levels. Second year seedlings of Mississippi seed origin had complete leaf emergence before any evidence of budbursting in the Ohio progeny of similar age. Leaf fall patterns showed a clear difference between the two populations with Ohio plants dropping their leaves 2.5 weeks prior to complete defoliation in the Mississippi progeny. Significant differences in chlorophyll levels were demonstrated with the more northern (higher latitude) Ohio population showing consistently greater amounts of chlorophyll per gram dry weight than …

Results Of The First High Protein-High Lysine Wheat Observation Nursery Grown In 1975, K. D. Wilhelmi, S. L. Kuhr, V. A. Johnson, P. J. Mattern

Historical Research Bulletins of the Nebraska Agricultural Experiment Station

This is the first report of results from a high protein-high lysine observation (HP-HL) nursery organized in 1974 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. Primary objectives of this nursery are to: (1) Systematically provide breeders and cooperators with superior genetic germplasm for elevated levels of protein and/or lysine. (2) Test the degree of expression of the high protein and high lysine traits in a diverse array of environments.

Zinc Fertilization Of Corn In Kentucky, W. W. Frye, H. F. Miller, Lloyd W. Murdock, D. E. Peaslee

Agronomy Notes

Of the agronomic crops, corn is especially sensitive to zinc deficiency. The major symptom of zinc deficiency in corn is broad white stripes in the leaves at or near the growing point in the early growth stages of the plant. It has been referred to as "white bud" disease because of the characteristic whitish area on one or both sides of the midrib near the base of new leaves. It can be seen as a new leaf unfolds from the whorl. Growth is stunted resulting in shorter than normal internodes. The pith of the stalk may become darkened at the …

James Valley Agricultural Research And Extension Center Annual Progress Report, 1978, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1978 progress report for the James Valley Agricultural Research and Extension Center. The reports in this document represent the research conducted at the Center during 1977. The report includes weather data, information on crop production, soil tillage, irrigation, soil reclamation, performance and variety test, herbicide performances and testing, and other experiments conducted at the Center in Redfield, South Dakota.

Simple Procedure For Disruption Of Fungal Spores, James L. Van Etten, Shelby Freer

Department of Plant Pathology: Faculty Publications

A simple, inexpensive method for disrupting dormant fungal spores is described.

The Prairie Naturalist Vol. 10. No. 1 March. 1978

The Prairie Naturalist

KEY TO THE SKULLS OF NORTH DAKOTA MAMMALS ▪ J. M. Wiebe

RESPONSES OF PRAIRIE GROUSE TO AVIAN AND MAMMALIAN VISITORS ON DISPLAY GROUNDS IN NORTHWESTERN MINNESOTA ▪ D. W. Sparling, Jr. and W. D. Svedarsky

FIRST NESTING RECORD OF THE CASPIAN TERN IN NORTH DAKOTA ▪ J. F. Herman, R. A. Schmidt and K. J. Wilson

MARSH HAWK PREDATION ON BLACK TERN AND PECTORAL SANDPIPER ▪ G. D. Maxson

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA—1977 ▪ R. N. Randall

BOOK REVIEW

Audubon Society "Field Guides" ▪ D. L. Kubischta

Purification Of Some Legume Carlaviruses, Venkateswarlu Veerisetty, Myron K. Brakke

Department of Plant Pathology: Faculty Publications

Purification schemes were developed which yielded 0.7 to 1.0 mg of alfalfa latent virus (ALV) and pea streak virus (PSV) and 0.1 to 0.3 mg of red clover vein mosaic virus (RCVMV) per gram pea cullivar Lincoln plant tissue (excluding roots). The freezing of the tissue and the use of an appropriate extraction buffer were crucial. Virus from sap was precipitated by 6%(w/v) polyethylene glycol (PEG, MW 6,000) and concentrated by two cycles of differential centrifugation. Partially purified virus preparations had a single nucleoprotein component in rate-zonal sucrose and equilibrium cesium chloride density gradient centrifugation. The virus preparations did not …

Soil Science Research Report - 1978

Soil Science Research Reports

Corn Experiments

Nitrogen Rates on Corn .................. Section 1

Nitrogen Rates for Corn Grown in an Eco-fallow Rotation .................. Section 2

Anhydrous Ammonia and N-Serve for Irrigated Corn .................. Section 3

Nitrogen Losses from Sprinkler Applied Nitrogen Fertilizer .................. Section 4

Application of Sulfur for Irrigated Corn on Sandy Soils .................. Section 5

Lime and Boron for Corn .................. Section 6

Influence of Salt Content of Fertilizer and Distance from the Seed on Emergence and Yield of Corn .................. Section 7

Evaluation of Tillage Systems for Corn Production on a Silty Loam Soil in Northeast Nebraska .................. Section 8

Effect …

Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix F: Terrestrial Ecosystem Analysis (Supplement), New England Division, United States Army Engineer Division

Dickey-Lincoln School Lakes Project

Construction of the proposed Dickey-Lincoln School Lakes Project in Aroostook County, Maine will result in the isolation of an area of land due to the impoundment behind Dickey Dam. This land area is located between the United States - Canadian border, the Little Black River, the impoundment (elevation = 913 feet), the Big Black River, and the Shields Branch of the Big Black River, and comprises 183,768 acres of land. A previous report (ERT, 1977) determined the forest types within two miles of the impoundment but did not extend to the Canadian border. This report addresses the forest types

Crop Competition Trials, M L. Poole

Experimental Summaries - Plant Research

Rates of nitrogen on mixtures of wheat and ryegrass, 78H69.

Rates of Nungarin subclover under a wheat crop with and without applied nitrogen, 78WH70.

Rates of seedling wheat on competition between wheat and ryegrass, 78WH71.

Rates of ryegrass on wheat and. barley yields, 78WH72

Grain Legume Agronomy, G H. Walton

Experimental Summaries - Plant Research

Wheat yield following Ultra and Unicorp lupin, 77A21.

Grain legume species comparison, 78A10, 78B9, 78B10, 78NA6.

Lupin cultivar evaluation, 78B7, 78WH16

Cicer variety comparison, 78HA4.

Cicer arietinum agronomy, 78HA5.

Miscellaneous legume species comparison, 78M4, 78MT9.

Lupin cultivar split-seed comparison, 78M012.

CB49 Agronomy (continuing experiment), 77M017.

Faba bean evaluation, 78MT10.

Undersowing crops with subclover (cereal phase), 77NA25.