Digital Commons Network^™

Season, Growth Regulant / Seed Treatment / Foliar Spray Trials, D. Miers, M. Perry

Experimental Summaries - Plant Research

Rates and times of application of two chlormequat formulations. 82 BA 5, 82 c 3, 82 E 3, 82 M 3, 82 MR 6, 82 N 4, 82 WH 6. Growth regulators / seed dressings / foliar sprays on wheat. 82 BA 4, 82 BR 2, 82 LG 6, 82 MT 5, 82 TO 3, 82 c 2, 82 M 2, 82 N 3, 82 WH 5, 82 E 2, 82 ME 4, 82 NA 7, 82 KA 9a, 82 MO 2s, 82 NO 6, 82 KA 9b, 82 MO 2b, 82 NO 9. Chlormequat on yield and head loss …

The Effect Of Soil Acidity On Crop And Pasture Production, Summary Of Experimental Results, 1982., W. Porter., S. Carr., R. Klemm.

Experimental Summaries - Plant Research

82ME54, 82M024, 82TS33, 82M5, 82ME10, 81TS1, 81TS30, 81LG8, 81M54, 82ME31, 82ME55, 82ME56.

Deep Ripping Effects On Cultivation Pans, Root Growth, Crop Growth, Soil Water Relations And Yields., D. Tennant

Experimental Summaries - Plant Research

Experiment programme. 77WH17, 82WH2, 82WH35, 82WH36, 81M52.

Grain Legume Agronomy Programme., G. H. Walton

Experimental Summaries - Plant Research

Lupin agronomy, Series l - Growth factor interactions. 82GE18, 82GE19, 82N038, 82N18, 82MA13. Lupin agronomy, Series 2 - Harvest index response to density 82GE20, 82M24. Lupin agronomy, nutrition, 82GE21, 82MA14, 82M017. Erregulla lupin rotation plots, 81M027, 81M029, 81M030. Grain legumes for wheatbelt rotations, 81GE6,81TS3, 81ME3, 81M05, 81MO14. Grain legume species trials, 81E30, 82NA31, 82JE23, 82E26, 82LG28. Low rainfall, medium soils pH 5.5 to 7.0, 82ME41, 82ES35, 82ES36, 82TS25, 82ME39. Sites that failed, 82GE23, 82ME40, 82JE18. Field pea agronomy, 82LG27, 82LG26. Oat/lupin mixtures for grain feed 82Bu9, 82Bu10, 82AL34. Oat/pea mixtures for hay, 82PE21, 82KA37. Fababean nodulation, 82MD16, 82MN25.

Row Spacing On Wheat Yield, M. L. Poole.

Experimental Summaries - Plant Research

The main aim of these trials was to provide preliminary information on the effect of row spacing on wheat yield. 82M56, 82M57, 82N37, 82M54, 82M55, 82ME75, 82ME76, 82N36, 82LG4.

Sulphur Nutrition Of Pastures, Phosphorus And Potassium Nutrition Of High Rainfall Pastures On Deep Sands And Soil Acidity - High Rainfall Pastures., J. S. Yeates., M. F. Clarke

Experimental Summaries - Plant Research

Sulphur - high rain fall areas. Rates and time of application of sulphur as superphosphate to pastures. 79AL2, 79AL23, 79AL41, 82BY7, 82BY8, 82PE2. Sulphur rundown on heavy soils - 81BY1. Sources, rates, time of application of sulphur to pastures. 80AL1, 80AL4, 81AL3, 81AL4. Sulphur - low rainfall areas. Sulphur on pastures 80JE16/17, 82AL9, 82KA4. Sulphur on crops 82ME68 (with G Fosberry). Phosphorus. Sources, rates, time of application of phosphorus on high rainfall deep sand pastures. 80AL2, 80ALS, 80AL15, 81AL5, 81KE2, 81MA4, 82AL10. Potassium. Sources, rates, time of application of potassium on high rainfall deep sand pastures. 80AL3, 80AL6, 81AL7, 81AL8. …

Influence Of The Termite Macrotermes Michaelseni (Sjöst) On Soil Fertility And Vegetation In A Semi-Arid Savannah Ecosystem, M. A. Arshad

All Peer-Reviewed Publications

The growth and species structure of vegetation in relation to the proximity of termite (M. michaelseni) mounds was studied in a semi-arid savannah ecosystem during 1978-1980. The dry matter yield in the termite-modified area at 1-10 m distance from mounds was significantly greater (P < 0.01) than that in the area beyond 22 m which is relatively unaffected by the termites. Themeda triandra and Digitaria scalarum, dominant grass species of the area, were totally absent in the 1-10 m zone around the mound. The major species in the immediate vicinity of the mound were Pennisetum stramineum and Cynodon dactylon, the latter was a dominant species (over 90%) within the 0-10 m zone and entirely absent beyond 15 m from the mound. The number of grass species increased from 2-3 species around the mound to 6-7 species in the area apparently beyond the influence of the mound. High concentration of nutrients and favourable water availability, together with good drainage, appeared to be the major causes of increased biomass and different species composition of vegetation around the mound. © 1982.

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume I, James Ferguson, Robert Shulstad, William Bateman

Arkansas Water Resources Center Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contract No. DACW03-81-C for the U.S. Army Corps of Engineers by the Water Resources Research Center at the University of Arkansas.

Feasibility Study For A Beaver Reservoir Agricultural Water Supply Volume Ii, James Ferguson, Robert Shulstad, William Bateman

Arkansas Water Resources Center Technical Reports

An irrigation district of approximately 30,000 acres has been proposed to be located in Washington and Benton Counties in Northwest Arkansas utilizing water from Beaver Reservior. This report on the economic benefits of such a district is done under contr

The Prairie Naturalist Volume 13, Numbers 3 And 4. September - December 1981

The Prairie Naturalist

PROVISIONAL CHECKLIST OF MAMMALS OF SOUTH DAKOTA ▪ J. R. Choate and J. K. Jones, Jr.

LABORATORY FEEDING PREFERENCES OF THREE SMALL MAMMALS FOR FIVE TREE SPECIES ▪ T. G. Barnes and T. A. Schaid

NESTLING DIETS OF RED-WINGED AND YELLOW-HEADED BLACKBIRDS ON PLAYA LAKES OF WEST TEXAS ▪ D. H. Fischer and E. C. Bolen

COMPARISON OF FOUR NORTH DAKOTA IMPOUNDMENTS AND FACTORS AFFECTING

THE DEVELOPMENT OF IMPOUNDMENT PARASITOFAUNA ▪ H. L. Holloway, Jr. and N. T. Hagstrom

FIRST STATE RECORD OF RICHARDSON'S GROUND SQUIRREL IN IOWA ▪ R. P. Lampe, J. B. Bowles, and R. Spengler

THE EFFECT …

Connquest, Sandra Cookson, D.W. Allinson, G.S. Speer, R.W. Taylor, R.P. Prince, J.W. Bartok, D.W. Protheroe, D.R. Miller

Storrs Agricultural Experiment Station

No abstract provided.

Preliminary Nutrient Uptake Studies Of Experimental Vegetative Covers At The Maxey Flat Low-Level Nuclear Waste Disposal Site, Donna Lynn Cassity

Morehead State Theses and Dissertations

A thesis presented to the faculty of the School of Sciences and Mathematics at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science in Biology by Donna Lynn Cassity on July 27, 1981.

The Prairie Naturalist Volume 13, Number 2. June 1981

The Prairie Naturalist

HERPETOFAUNA OF MORMON ISLAND PRESERVE, HALL COUNTY, NEBRASKA ▪ S. M. Jones, R. E. Ballinger and J. W Nietfeldt

COYOTE USE OF PLAYAS IN THE TEXAS HIGH PLAINS ▪ R. W. Whiteside and F. S. Guthery

NEW RECORD OF THE LEAST WEASEL IN WYOMING ▪ M. R. Stromberg, D. E. Biggens and M. Bidwell

STATUS OF AMERICAN WOODCOCK IN NEBRASKA WITH NOTES ON A RECENT BREEDING RECORD ▪ G. R. Lingle

WINTER FOODS OF THE PINE GROSBEAK IN EASTERN NORTH DAKOTA ▪ R. C. Reigh

SEASONAL VARIATION IN HOME RANGE OF A FEMALE BADGER (Taxidea taxus) ▪ R. …

Fall Regrowth Of Crested Wheatgrass And Fourwing Saltbush, Noor Mohammad

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

During 1980-81, studies with crested wheatgrass (Agropyron desertorum) and fourwing saltbush (Atriplex canescens) were conducted in controlled environment growth chambers as well as under field conditions to achieve the following objectives:

1. To determine the effect of nitrogen fertilizer on the water use efficiency.

2. To determine the effects of various temperature, water stress and nitrogen treatments on the productivity, nitrogen content and carbohydrate reserves.

3. To determine the effects of N fertilization on fall and spring regrowth.

Crested wheatgrass and fourwing saltbush plants were maintained in three growth chambers for 60 days under three temperature …

Effect Of Mild Water Stress And Enhanced Ultraviolet-B Irradiation On Leaf Growth Of Rumex Obtusifolius L. And Rumex Patientia L. (Polygonaceae)., Steve R. Holman

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Leaves of Rumex obtusifolius L. and R. patientia L.were exposed to combinations of mild water stress and enhanced ultraviolet-B irradiation during their ontogeny. Two UV-B treatments (enhanced UV-B and control) and three water stress treatments (-0.0 MPa, -0.2 MPa and -0.4 MPa rooting medium matric potentials) were employed. The impact of the stress interaction was assessed on the basis of changes in leaf area, average adaxial epidermal cell size, and total number of adaxial epidermal cells per leaf. Although the level of UV-B irradiation applied was insufficient to significantly alter leaf growth at any given water stress, UV-B did interact …

The Energy Expenditure Of Heifers Grazing Crested Wheatgrass Rangeland In West-Central Utah, Kris M. Havstad

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The free-roaming ruminant requires energy for the demands of vii grazing, traveling and thermoregulation that are not required by its confined counterpart. Literature estimates of these additional costs range from 10 to 170 percent above maintenance. The uncertain magnitude of this increased demand and the factors that contribute to it impede the ability of the rangeland ruminant nutritionist to establish guidelines for the energy requirements of the free-roaming herbivore. This study was designed to estimate the energy expenditure of yearling Angus heifers while grazing a declining supply of available crested wheatgrass forage (Agropyron cristatum) on rangeland in west-central …

Higher Plant Acclimation To Solar Ultraviolet-B Radiation, Ronald Robberecht

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Plant acclimation to natural and intensified solar UV-B irradiance was investigated in three species, Oenothera stricta Ledeb., Rumex obtusifolius L., and R. patientia L. The objectives of this study were to determine: (1) the relationship between plant sensitivity and epidermal UV attenuation, (2) the effect of phenotypic changes in the leaf epidermis, resulting from UV-B exposure, on plant sensitivity to UV radiation, and (3) the plasticity of these changes in the epidermis leading to plant acclimation to UVB radiation.

Epidermal UV transmittance was found to differ in magnitude and spectral distribution among the three species examined in this study. Epidermal …

Some Morphological And Chemical Responses Of Blackbrush (Coleogyne Ramosissima) To Goat Browsing: Influences On Dietary Blackbrush Selection By Goats And Cattle, Frederick D. Provenza

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Domestic goats were used to modify the growth form of blackbrush, a spinescent shrub occurring in nearly monospecific stands on several million hectares of rangeland in the southwestern United States. The objective of this research was to evaluate goat browsing as a means of improving these rangelands for cattle. Winter goat browsing stimulated spring twig growth from basal and axillary buds which resulted in increased production.

Twig production by heavily browsed plants (>95 percent removal of current season's twigs) was a function of precipitation, soil depth, branch location on the plant, and period of rest after browsing. As precipitation …

Natural Pastures Of The Macquarie Region Of New South Wales: Their Origin, Composition And Management, David Leslie Michaelk

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Two experiments were conducted in the semi-arid (400 millimeter annual rainfall) Macquarie region of New South Wales, Australia, at the Trangie Agricultural Research Station (31° 59'S; 147° S7'E), to examine (a) the way botanical parameters can be used to separate grazing and climatic impacts on range vegetation, and (b) how this delineation affects application of range science tenets (site, condition and trend) to different pasture types.

Two range sites were studied: Site 1, a light soil type, was dominated by annual grasses, legumes and forbs, whereas perennial grasses (mainly Chloris acieularis and Chloris truncata) dominated the heavy soils of …

Hydraulic Conductivity And Drought Acclimation Of Cotton Root Systems, Derrick M. Oosterhuis

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Hydraulic conductivity of single roots and whole root systems was studied for soil, sand and solution-grown cotton plants (Gossypium hirsutum L.). Conductivity varied widely depending on plant age and growing conditions. Total conductivity for soil-grown plants decreased from 357 x 10^-6 µ1 s^-1 bar^-1 cm^-1 one week after germination to 5 x 10^-6 µ1 s^-1 bar^-1 cm^-1 at boll set. There was a concomitant increase in total root length. Solution-grown plants had higher root conductivities than soil- or sand-grown plants. Root conductance was decreased by low temperatures, lack of oxygen and …

The Prairie Naturalist Volume 13, Number 1. March 1981

The Prairie Naturalist

EDITOR: Dr. Paul B. Kannowski

BOOK REVIEW EDITOR: Douglas H. Johnson

TABLE OF CONTENTS

WATERFOWL USE OF A MUNICIPAL SEWAGE LAGOON ▪ G-A. D. Maxson

MASS MORTALITY OF MUSSELS FROM SLUMPING ALONG THE RED LAKE RIVER NEAR CROOKSTON, MINNESOTA ▪ A. M. Cvancara, D. J. Brown, D. K. Cudworth, and T. R. Klett

CHRISTMAS BIRD COUNTS FOR NORTH DAKOTA — 1980 ▪ R. N. Randall

BREEDING BIRDS ON WATERFOWL PRODUCTION AREAS IN NORTHEASTERN NORTH DAKOTA ▪ H. F. Duebbert

FURTHER EVIDENCE OF MARSH HAWKS FEEDING ON DUCKS ▪ R. A. Wishert, R. M. Kaminski, and D. W. Soprovich

FIRST NEST …

Aerial Spraying Trial., G A. Pearce

Experimental Summaries - Plant Research

Conclusions 1. The volume of application with water affected the results obtained. The visual results of Treatment 1 suggested it was not an acceptable commercial result and the plant counts support this conclusion. Treatments 2 and 3 looked very similar and were very similar and were very acceptable results. 2. The height of spraying affected the results in that where the plane had to start climbing to pass over trees, the effectiveness dropped off. 3. Spray drift could be a problem because of the risk of causing damage to trees and native vegetation. Severe damage was seen on trees at …

Part 1. A. Take-All Of Cereals B. Rhizoctonia C. Pythium Root Rot Of Wheat, Part 2, A. Minimum Tillage Trials., G S. Macnish

Experimental Summaries - Plant Research

Take-all following cleaning crops. Take-all build-up on new land rotation. Take-all build-up and rates of phosphorus on wheat. Long-term rotation and take-all. Take-all incidence in cereal/lupin rotation. Take-all incidence in a wheat/clover or/pasture rotation. Continuous wheat and take-all. Rhizoctonia patch of cereals. Rhizoctonia mapping experiment. Rhizoctonia patch - control. Pythium root rot of wheat. Part 2. Sprayseed followed by direct drilling with triple disc drill. Plough, Sprayseed followed by direct drilling with triple-disc drill. Sprayseed followed by direct drilling with combine. Cult + seed with combine - Sprayseed followed by cultivation followed by drilling with combine. For this report the …

Investigations Of Ryegrass Toxicity., Brian A. Stynes

Experimental Summaries - Plant Research

81KA47, 81NA47, 81M047, 81KA48, 81NA45, 81M045, 81KA50, 81NA46, 81M046, To monitor the amount of toxin present in galls from the time of first head emergence until maturation of the ryegrass pastures. To relate the onset and development of toxicity to plant growth stages and climatic conditions in the different regions affected by annual ryegrass toxicity. To relate the level of toxicity to pasture density and to the number of galls present in the pasture. As part of the series of experiments done to monitor the amount of toxin present in pasture at a number of sites throughout the seasons, an …

Summary Of Experimental Results Field Trials 1981, P A. Rutherford

Experimental Summaries - Plant Research

80NA46, 80NA45, 79TS27, 80A46, 80NA50, 79N036, 81M041, 81Pe12, 79KU1, Weed control on roaded catchments. Demonstration catchment. Chemical firebreaks on deep white sand. Chemical firebreak evaluation - long term. Residual herbicides for annual weed control - long term cost evaluation. Long-term weed control on Railway Track. Control of annual weeds on road shoulders

The Effect Of Soil Acidity On Crop And Pasture Production., W Porter, R Klemm

Experimental Summaries - Plant Research

SUMMARY The effects of lime and molybdenum applications on wheat and subterranean Clover were studied further. Wheat. In relation to lime use, my aim is to develop soil tests to be used to predict when a soil requires lime to produce maximum yield, and to predict the optimum rate of lime. Using the results from field trials commenced in 1980 and 1981 the soil parameters which may be used to predict lime responses in wheat have been narrowed down. From the relationships between soil data and lime responses it appears that soil ph (measured in 1:5 H20 or 1:5 N …

Report No 41 - A Survey Method For Identifying Roadside Flora Suitable For Conservation In Western Australia, John K. Scott

Fisheries Research Reports

A survey method for identifying flora suitable for conservation alongside roads in south-western Australia was derived from an examination of characteristics of road verges. Two roads, from Midland to Toodyay and from Armadale to Bunbury, were examined. Width of verge, weed cover, soil disturbance, vegetation structure, presence of public utilities, evidence of fire and the type of adjoining land were measured at one mile (1.6 km) intervals on both sides of the road. Also recorded were aesthetic qualities such as stands of beautiful trees and sites of special interest, e.g. the presence of rare plants.

Three variables, percentage weed cover, …

Wood Anatomy Of Chloanthaceae (Dicrastylidaceae), Sherwin Carlquist

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Report No 42 - A Guide To The Gazetted Rare Flora Of Western Australia, Barbara L. Rye, Stephen D. Hopper

Fisheries Research Reports

Descriptions and illustrations are provided for the first 100 taxa which have been gazetted as rare, likely to become extinct or in need of special protection under the Wildlife Conservation Act 1950-1979. Most of these rare taxa are restricted to the South-West Botanical Province and more than one-third occur in the Albany Wildlife District.

An outline is given of the means adopted to determine which taxa are gazetted as rare, the legal provisions for their protection and the biological data being sought for their management.

Fisheries Report No 45 - The Short Term Effects Of Brush Harvesting On The Kwongan Vegetation At Eneabba, Western Australia, E. A. Griffin, A. J. M. Hopkins

Fisheries Research Reports

Areas of the kwongan vegetation south of Eneabba are currently being harvested to provide brush for rehabilitation after mining. Because of the botanical importance of the Eneabba kwongan, a study of the effects of the harvesting was initiated. Three areas with different harvest histories were sampled using quadrats paired across cut/uncut boundaries. Floristic and structural differences between quadrats and between areas were assessed. The store of seed in uncut vegetation was measured.

There was a loss of species as a result of harvesting, at least in the short-term. Many species regenerated by resprouting from buds in damaged stems or in …