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Summary Of Experimental Results 1979 General Phosphorous Trials, J W. Bowden, R Lunt, K F. Longbottom

Experimental Summaries - Plant Research

Contiuing trials Stock rate and level of Superhosphate on cyprus medic pasture 66M30 Rates of phosphorus, sulphur and stocking trial - cropping phase 68BR7 Maintenance P x S trials 65N5, 69WH15, 65A1, 65c6 Residual Value of Phosphorus 78M08, 78C4, 78MA2, 75LG26, 78M38 NEW TRIALS Crops N x P Trials 79NA11, 79NA12, 79NA13 Times of P on Lupins 79M030 Lupin and Oat Mixtures 79BA31, 79MT30 Methods Application and Cultivation of P on Wheat 79M1, 79WH1 Methods and Times of P on Wheat Old Land 79N1 Rates of Super on Wheat 79LG Rates of Super on Lupins 79GE PASTURES Rates of P, …

Ryegrass Toxicity Organism Found On Other Grasses, D L. Chatel, J. L. Wise, A. G. Marfleet

Journal of the Department of Agriculture, Western Australia, Series 4

Yellow slime disease caused by Corynebacterium sp. has recently been found in three grass species.

The diseased grasses were found in the field growing with each other and with affected toxic annual ryegrass.

Perennial Pasture Measures Up, D A. Nicholas

Journal of the Department of Agriculture, Western Australia, Series 4

In a trial at Manjimup, a pasture based on the perennial grass, Currie cocksfoot, gave substantially more production than a comparable annual pasture.

The Place For Annual Brome Grass, G W. Anderson

Journal of the Department of Agriculture, Western Australia, Series 4

Grasses in the anual pastures of southern Australia are particularly important early in the growing season.

The main grass sown, has been annual rygrass, but concerns are emerging with 'annual ryegrass toxicity' and and 'in crop' competition.

This work looks at the role of annual brome grass in pastures.

Stylidium In Arnherm Land: New Species, Modes Of Speciation On The Sandstone Plateau, And Comments On Floral Mimicry, Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Erosion Risks With High Stocking Rates At Kojonup Trial, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

A pasture grazing trial at Kojonup dramatically illustrated the effects of Cyclone Alby. Severe erosion was evident on the heavily stocked plots while the more lightly stocked plots showed little damage.

Symptoms And Treatment Of Copper Deficiency Of Wheat, J W. Gartrell, R. F. Brennan, A. D. Robson

Journal of the Department of Agriculture, Western Australia, Series 4

Copper deficiency in wheat is still common but may not be easily noticed.

1979 Pasture Species Investigations - High Rainfall Area, D A. Nicholas

Experimental Summaries - Plant Research

Contents. 1. Clover cultivar grazing trial - 68NA1 - N. Bannister. 2. Perennial versus annual grass grazing trial - 72MN5 - Manjimup Research Station. 3. Pasture types demonstration - 72D1 - Denmark Agricultural High School. 4. 76MT3 - Trikkala evaluation trial - Mt Barker Research Station - see also report of D.J. Gillespie and separate progress report. 5. Clover cultivar evaluation trials: 77AL22 - Wellstead. 77BU10 - Karridale. 77D5 - Denmark Research Station. 78BR16 - Darradup. 78BU15 - Jindong. 78DE1 - Tingledale. 78MN5 - Manjimup Research Station. 79BY6 - Waterloo. 79ES35 - North Merivale. 79ES36 - Mount Merivale. 79MA12 - …

Plant Nutrient And Economic Value Of Animal Manures, S. R. Wilkinson

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

Animal manures have economic value as plant nutrient sources and as amendments for soils whose physical properties can be improved by adding organic matter. Their value as fertilizer per metric ton applied is generally inverse to their water and carbon contents. Plant nutrient concentrations in animal manures are highly variable, thereby introducing uncertainty into meeting plant nutrient needs for crop production. Where manure has been applied for several years, however, little or no additional fertilizer phosphorus (P) and potassium (K) are needed for crop production. Animal manures were ranked in decreasing order as to replacement fertilizer value (dollars) as follows: …

Lichen Deterioration About A Coal-Fired Steam Electric Generating Plant, Elmer L. Schmidt, R. J. Zeyen

Journal of the Minnesota Academy of Science

A survey of three common epiphytic species of foliose lichens was conducted about a coal-fired steam electric station in North-central Minnesota during the summer of 1977 to assess general lichen health on a gradient basis from a point-source of air pollution. Health, as judged by abnormal form and color, of nearly 3,500 lichen specimens was recorded in 35 vegetation survey plots from a total of 291 trees. Lichen discoloration and degeneration decreased with increased distance from the power plant, and little deterioration was observed beyond 3 miles. Within the plant vicinity, lichen damage was noted on tree boles facing the …

Lichens Of Arkansas I: A Summary Of Current Information, Jewel E. Moore

Journal of the Arkansas Academy of Science

No abstract provided.

Relationship Of In Vitro Gonadotropin Binding To Bovine Testes And The Onset Of Spermatogenesis, B. D. Schanbacher

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

Concentrations of luteinizing hormone (LH) and follicle stimulating hormone (FSH) were determined in serum of crossbred beef bulls during pubertal development. Serum LH ranged between .5 and 2.0 ng/ml with highest concentrations observed as 12 months of age. Serum FSH varied considerably among individuals but mean concentrations were within the normal range (50 to 100 ng/ml). Neither LH nor FSH increased at the time when testosterone increased or spermatogenesis entered meiosis.

Specific binding of ^{1 2 5} I-labeled human chorionic gonadotropin (hCG) and ^{1 2 5} I-labeled FSH to the bovine testis was demonstrated by autoradiographic localization techniques. Binding of …

Transmission Of Sarcocystis Suihominis From Humans To Swine To Nonhuman Primates (Pan Troglodytes, Macaca Mulatta, Macaca Irus), R. Fayer, A. O. Heydorn, A. J. Johnson, R. G. Leek

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

Sporocysts of Sarcocystis suihominis obtained from human feces were used to infect swine. Heart, tongue, and skeletal muscle from experimentally infected and noninfected control swine were fed via stomach tube to nonhuman primates including chimpanzees (Pan troglodytes), rhesus monkeys (Macaca mulatta), and cynomolgus monkeys (Macaca irus). All primates fed infected swine tissues shed sporocysts beginning 13 to 15 days postinfection and were still shedding sporocysts at the conclusion of the experiment, 30 days postinfection. Rhesus and cynomolgus monkeys were fed infected swine tissues a second time and shed sporocysts. All primates remained in good …

Lupin Yields Are Not What They Should Be : Viewpoint, M Ferguson, S. Trevenen

Journal of the Department of Agriculture, Western Australia, Series 4

Mike Ferguson has been in charge of the Three Springs office of the Department of Agriculture since 1977.

Based on trials he has done and others he has seen, he believes farmers can greatly increase their yield of lupins.

Doublegee Control In Pasture : What Is It Worth, D J. Gilbey, R. J. Lightfoot

Journal of the Department of Agriculture, Western Australia, Series 4

A recent study showed that the cost of spraying to control a heavy doublegee infestation can be recovered in the first year of the spraying.

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Development of toxicity in the field. Experiment – 79KA13. Location – C. Butterworth, Katanning. The effect of herbicides and growth regulants on gall development. Experiment – 79KA14. Location - C. Butterworth, Katanning. Effect of burning on the production of galls. Experiment – 79KA9. Location - L. Blight, Gnowangerup; K. Butterworth, Katanning; C. Hanna, Katanning; J. Shepherdson, Gnowangerup. Table 1 Previous land use and characteristics of fires at four farms where fields were burnt in autumn to reduce the level of toxicity of ryegrass in the subsequent spring pasture. Table 2 The numbers and relative proportions of galls retained in the …

Combining Ability In Forage Sorghum Hybrids, W. M. Ross, Herman J. Gorz, Francis A. Haskins, K. D. Kofoid

Department of Agronomy and Horticulture: Faculty Publications

Two cross-classified hybrid forage sorghum [Sorghum bicolor (L.) Moench] experiments were conducted at Mead, NE: Experiment 1 (3 females x 8 males), in 1973-75, and Experiment 2 (13 females x 2 males), in 1974-75. Data were collected on plant height, days to bloom, forage yield, percent dry matter (DM), percent protein, and in vitro dry matter disappearance (IVDMD) in both experiments and percent Brix in Experiment 1. Differences among hybrids averaged over females or over males were significant for each trait in one parental group or the other in each test except IVDMD in Test 1 and DM in …

Fertilizing Capacity And Ultrastructure Of Fowl And Turkey Spermatozoa Before And After Freezing, M. R. Bakst, T. J. Sexton

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

The fertilizing capacity, motility and ultrastructure of fowl and turkey spermatozoa were examined at various stages of the freezing process. For both species, fertility and motility were depressed after equilibration with dimethylsulphoxide at 5 °C. After freezing, motility was maintained at 55% for fowl spermatozoa and 40% for turkey spermatozoa; however, fertility was 55% for the fowl and 0% for the turkey. Qualitatively, the damage to the spermatozoa of both species was nearly identical, as revealed by scanning and transmission electron microscopy. The plasmalemma was the primary site of damage. 'Bent' spermatozoa, coiled tails and swollen mitochondria were also present. …

Uterine Blood Flow Of Cows During The Oestrous Cycle And Early Pregnancy: Effect Of The Conceptus On The Uterine Blood Supply, S. P. Ford, J. R. Chenault, S. E. Echternkamp

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

Blood flow to each uterine horn of cows during the oestrous cycle and early pregnancy was determined daily by use of electromagnetic blood flow probes placed around both middle uterine arteries. The pattern of blood flow to uteri of pregnant and non-pregnant cows was similar until Day 14 after mating or oestrus. Between Days 14 and 18 of pregnancy blood flow to the uterine horn containing the conceptus increased (P < 0.01) 2- to 3-fold, whereas blood flow to the non-gravid uterine horn in these cows remained constant. No corresponding increase in blood flow to the uterine horn ipsilateral to the ovary bearing the CL was observed in non-pregnant cows during this 4-day period. By Day 19 of pregnancy, blood flow to the gravid uterine horn had returned to a level similar to that observed on Day 13. Blood flow to both uterine horns of pregnant cows remained constant from Days 19 to 25 and then increased to the gravid horn (P < 0.01) markedly until Day 30 whereas blood flow to the non-gravid horn remained low. Uterine blood flow during the oestrous cycle of non-pregnant cows was positively correlated (P < 0.01) with systemic concentrations of oestradiol and the ratio of oestradiol (pg/ml) to progesterone (ng/ml). There was no association between oestradiol concentrations and blood flow to the gravid uterine horn. These data indicate local control of uterine blood flow by the bovine conceptus which may function to create optimal conditions for the continuation of pregnancy.

Increased Lamb Production With Rams Exposed To Short Daylengths During The Nonbreeding Season, B. D. Schanbacher

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

Exposure of rams during the nonbreeding season (anestrous period) to short daylengths will initiate a new sexual cycle characterized by testicular growth, increased mating activity and improved semen quality. Lambing results accumulated from 300 potential matings indicate that rams exposed to artificial photoperiods of 8 hr light and 16 hr darkness for 10 weeks (referred to as rams on short-days) are more fertile than control rams maintained under the relatively long days of spring. When five control rams were penned individually with 30 ewes synchronized with progestogen and PMSG, 67% of the ewes were mated. Eighty-nine percent of the ewes …

A Taxonomic And Ecological Study Of The Cladonia Species Of The Central Portion Of Fox Ridge State Park In Coles County, Illinois, James L. Jannesse

Masters Theses

Extensive collections were made on the central ridge system at Fox Ridge State Park in Coles County, Illinois. A literature review of the works on the genus Cladonia in North America encompassed major taxonomic collections undertaken in the last 20 years. Also, a historical account on the developments in the Cladonia chlorophaea complex are listed. Basic Cladonia morphology is described, including both microscopic and macroscopic illustrations. The study area was subdivided on a grid system, enabling the collection sites to be numbered. The entire area was covered in two foot intervals. From every entity that was found, ¼ of it …

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. …

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.

Sir Joseph Banks And The Botany Of Captain Cook’S Three Voyages Of Exploration, Phyllis I. Edwards

Pacific Studies

No abstract provided.

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

Nebraska Agricultural Experiment Station: Historical Research Bulletins

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.

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.

End Matter, Vol. 20 No. 5

Brigham Young University Science Bulletin, Biological Series

No abstract provided.

Mammals Of The Smithsonian Venezuelan Project, Charles O. Handley Jr.

Brigham Young University Science Bulletin, Biological Series

Mammals and their ectoparasites were collected in all parts of Venezuela between 1965 and 1968 by the Smithsonian Venezuelan Project. Ecological and geographical data are summarized here for 38,213 specimens of 270 species of mammals obtained by the project.

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 ▪ …