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Residue Trials, Herbicide Incorporation And Leaching Of Chlorsulfuron, T Piper

Experimental Summaries - Plant Research

Residue Trials: Breakdown rates have been established for trifluralin at Wongan Hills and Avondale over the past two seasons. The decay curve follows a hyperbolic curve rather than the expected exponential curve with constant half life, probably due to the considerable loss of chemical by volatalization in the first few days, before biological decomposition takes over as the main breakdown factor.

b) Herbicide Incorporation. Du Pont Zl96 fluorescent orange powder at 30 g/m2 could be readily seen when illuminated by 400 yw/cm2 of 365 nm UV radiation, and was successfully photographed on Ektachrome 400 ASA film with a 4 sec. …

Barley Foliage Diseases, T N. Khan, K. Brain, M Judges

Experimental Summaries - Plant Research

General comments and highlights

Scald: Effect of time of application - 83BA10, 83MT9.

Scald: Effect of rate of fungicide – 83BA11.

Scald: Comparing fungicides – 83BA42.

Scald: Effect of seeding rate – 83BA12, 83MT10.

Scald: Response to fungicide in farmer's field – 83AL18, 83AL81, 83AL82.

Scald: Variation in pathogenicity – 83AB11, 83BA13, 83MT11, 83WH7.

Scald: Cultivar x fungicide in farmer's field – 83LG63.

Net Blotch: Potential yield losses – 83A15, 83BA15, 83WH6.

Net Blotch: Screening new fungicides – 83BA43.

Spot-type net blotch: Potential yield losses – 83C5.

Spot-type net blotch: Sources of resistance - Chapman Research Station, Nabawa.

Powdery mildew …

Rotation Trial For Wheat, C W. Thorn

Experimental Summaries - Plant Research

Trial report.

Treatments.

Measurements.

Results and discussion.

Conclusion.

Project Aquarius (Csiro) : The Effects Of Bushfires On Honey Production : Submission And Comments To The Federal Council Of Australian Apiarists' Associations, R C. Burking, A. C. Kessell

Apiculture research reports

No abstract provided.

Annual Medics For The Kalgoorlie Region And Adjacent Eastern Rangeland Zones, G Gintzburger

Experimental Summaries - Plant Research

Species selection and establishment methods Extensive overgrazing and burning of the dominant winter rainfall Goldfields pastoral zones have left large areas degraded with a poor annual vegetation cover of nearly no grazing value. Thus, more grazing pressure is exerted on shrubs and small trees accelerating the desertification process. Shrubs and trees are the main stabilising agent left in a rangeland plant community when alI annuals have been grazed out. In order to upgrade or regenerate some of these areas, conventional methods of grazing prohibition or deferred grazing can be used but often, improvement obtained are slow. It is hypothesized that …

Frequency Distribution Patterns And Partitioning Of Copper, Iron And Zinc In Selected Tissues Of The Black Mullet (Mugil Cephalus), Charles J. Venuto, John H. Trefry

Ocean Engineering and Marine Sciences Faculty Publications

Copper, iron and zinc concentrations were determined for muscle, gill and liver tissue from 45 black mullet (Mugil cephalus) collected in Turkey Creek, an embayment of the Indian River Lagoon, Florida. In the liver, Fe concentrations (2420+ 1040 jig/g, dry wt) were higher than for Cu (510 ± 350 fig/g) and Zn (330 ± 120ng/g). Gill tissue iron levels (380 ± 140/xg/g) were greater than those for Zn (96 ± 26 jtg/g) and Cu (6.3 ± 4.4 fig/g). Muscle tissue concentrations were lowest with Fe values (19 ± 15/tg/g) greater than thosefor Zn (13.5 ± 4.9 fig/g) and Cu (1.1 …

Optimal Foraging Theory And The Psychology Of Learning, Alan Kamil

Avian Cognition Papers

The development of optimization theory has made important contributions to the study of animal behavior. But the optimization approach needs to be integrated with other methods of ethology and psychology. For example, the ability to learn is an important component of efficient foraging behavior in many species, and the psychology of animal learning could contribute substantially to testing and extending the predictions of optimal foraging theory.

Analysis Of The Surface Polysaccharides Of R. Trifolii Su843 And Its Sym Plasmid Alterated Mutants, Jauh-Lin Duh

Masters Theses

The Rhizobium trifolii polysaccharides from SU843 and mutants--HC843(pBR1AN), HC843, 8002--in which the sym plasmid is replaced, absent, or mutated by transposon Tn5 were isolated. The surface polysaccharides of genetically altered mutants were compared quantitatively and qualitatively with one another and with the parent strain. The interpretation of these results is discussed in relation to the function of Rhizobium surface polysaccharides in the symbiotic process. The symbiotic ability of SU843 and mutant strains is as follows: (a) SU843, nod⁺, fix⁺; (b) mutant 8002, roa⁺ (still attaches to root hair), hac^-, nod^-; (c) …

Raw Water Quality In The New Charleston, Illinois Pump Storage Reservoir, Kevin G. Lookis

Masters Theses

Charleston, Illinois, a city located in east-central Illinois, recently implemented a new concept in a raw water system. Due to storage capacity-sedimentation problems in the old Lake Charleston-Embarras River raw water supply, the Charleston Pump Storage Reservoir was constructed. The new system involved building a dike separating the Lake Charleston impoundment from the Embarras River. Water to increase the storage capacity of the reservoir can now be selectively pumped into the impoundment from the river.

Raw water quality in the reservoir was monitored on a weekly basis for a full year from August, 1981 to August, 1982. The levels of …

Residual Phytotoxicity Of Mon-097 In Sludge Enriched Soils, Jennifer A. Woods

Masters Theses

Aerobically and anaerobically digested sludges were added to soil at concentrations of 0, 1, 5, and 10% (v/v). Dry weights of Avena sativa var. Noble plants, harvested 28 days after planting, were greater with increased sludge concentrations. Plant dry weights were consistently greater with aerobically than with anaerobically digested sludge. MON-097, an acetanilide herbicide, was applied to these soil/sludge mixtures at concentrations of 0, 0.5, 1, 2, 4, 8, 16 and 32 ppm. Residual phytotoxicity of MON-097 was not significantly affected by sludge concentration. These results suggest that increased concentrations of sludge in the soil do not contribute to detoxification …

Inclusive Fitness And The Practice Of Polyandry Among The Skidi Pawnee, Thomas E. Mcginnis

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

The ethnohistorical record of the practice of polyandry among the Skidi Pawnee of the 19th century is examined from the perspective of the inclusive fitness model. The practice of temporary polyandry may have allowed males to maximize their inclusive fitness by insuring high paternity certainty. Younger brothers and nephews may have guarded the wives of older male relatives to prevent the wives from bearing children of unrelated males.

The American Lobster Fishery Management Plan: An Assessment Of Its Impact On The New Hampshire Lobster Industry, John C. Belcher

Marine Affairs Theses and Major Papers

Exclusive fishery management jurisdiction between three and twelve nautical miles from the coast was granted to the Federal government by Congress in 1966. No federal regulations governing fishery management were ever promulgated, however. In 1972 an attempt was made to establish management regulations. Regional councils were formed to discuss industrial, managerial and scientific problems associated with fisheries within the territorial sea. Their success was limited. Not until the Fishery Conservation and ManagementAct of 1976 (PubIc Law 94-265) was enacted did a sound management structure exist at the federal level for fisheries regulation. This Act (FCMA) established a fishery conservation zone …

Iowa Academy Of Science Leadership Directory And Membership Roster, 1983-84, Iowa Academy Of Science

Iowa Academy of Science Documents

Contents:

Board of Directors ... 3
Section Chairs ... 4
Section Vice Chairs ... 7
Committees ... 9
Award Recipients ... 21
Past Presidents ... 23
Constitution, Article III ... 24
Membership Roster ... 26

Mammals Of The Northern Great Plains, J. Knox Jones Jr., David M. Armstrong, Robert F. Hoffmann, Clyde Jones

University of Nebraska State Museum: Mammalogy Papers

For the purposes of this book, the Northern Great Plains are defined as the states of Nebraska, North Dakota, and South Dakota. As a physiographic concept, the northern part of the great interior grasslands of North America is, of course, much broader in geographic extent than the Dakotas and Nebraska, but the three states lie in the heart of the region, and thus the title for this work seems appropriate. Our expectations in writing Mammals of the Northern Great Plains were to provide a comprehensive, yet semitechnical, treatmeat of free-living mammals that would prove useful to specialist and nonspecialist alike. …

Hybridization & Zoogeographic Patterns In Pheasants, Paul A. Johnsgard

Paul Johnsgard Collection

A review of interspecific pheasant hybrids as reported in the literature reveals a relatively high rate of hybridization in captivity but a low rate of hybridization in the wild. All of the 91 known hybrid combinations have been reported from captivity, and three of these combinations have also been reported from the wild. All of the latter involve species pairs of known close relationships (red and gray junglefowl, kalij and silver pheasant, and white and blue eared pheasant), suggesting that reproductive isolating mechanisms in the pheasants are much more effective under natural conditions than are those of grouse, a group …

Immediate Effects Of A Storm On Coastal Infauna, Fred C. Dobbs, Joseph M. Vozarik

OES Faculty Publications

Effects of storms on benthic infaunal communities have thus far been inferred rather than documented; especially lacking are studies examining immediate effects. To this end, the water column and 2 subtidal benthic sites were sampled before and after Storm David in September 1979. There were large post-storm increases in the numbers of infaunal species and individuals in the water column, presumably due to turbulent benthic boundary conditions. At the benthic stations, there were no pre vs. post-storm differences in the density of infauna; however, the number of species decreased at 1 station. There were storm-associated changes in the rank order …

Monitoring Defecation Activity Of Infaunal Deposit Feeders, Fred C. Dobbs

OES Faculty Publications

An inexpensive, reliable thermistor device capable of monitoring infaunal foraging activity was built and used in the laboratory to examine effects of temperature on sediment reworking by the maldanld polychaete Clymenella torquata. The worm defecated at least once per hour 55.0 % (12.0 "C) to 88.2 % (5.5 "C) of the time. Defecation rate was linearly and positively related to temperature. Estimated volume of sediment ejected per defecation (0.015 ml) did not change with temperature. Results are compared with previous reworking studies of C. torquata.

Population Structure, Density And Movements Of The Texas Tortoise Gopherus Berlandieri, Frank W. Judd, Francis L. Rose

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Gopherus berlandieri was studied on a 3.3 ha grid in Cameron Co., Texas for five years. One hundred two tortoises were marked (43 males, 30 females, 26 juv., and 3 adults whose sex was not determined). Numbers of males and females did not differ significantly. Juveniles comprised 27% to 9% of the population and maximum population density was 15 to 16 tortoises per ha. The number of females remained constant, but males and juveniles declined gradually from 1972 to 1975, then markedly in 1976. The percentage of shared individuals in successive years was higher for females than males, but only …

Agricultural Water Quality Criteria : Irrigation Aspects., P R. George

Resource management technical reports

Water quality criteria for irrigation are imprecise. The final result of quality evaluation depends on plant, soil and climatic variables all of which can be inter-dependent. A range of management strategies of varying complexity are available to mitigate the effects of poor quality water. The heavy winter rainfall in the south-west of Western Australia affects the applicability of published salinity criteria most of which have been developed in arid and semi-arid environments with little effective rainfall.

Santa Clara Magazine, Volume 25 Number 3, Fall 1982, Santa Clara University

Santa Clara Magazine

8 - A CHRISTIAN IN A NUCLEAR WORLD by William C. Spohn, S.J. Exploring an issue crucial to our time from a Christian perspective.

13 - A TEACHER FOR ALL SEASONS by Paul L. Locatelli, S.J. Discussing the challenges and the relationship between teaching and scholarship that beset today's teachers.

16 - NO MORE PUNCH AND COOKIES 20 successful years at Santa Clara mean women's sports are here to stay.

18 - KRASSOWSKI ON COMMUNICATION by Jeanne Huber '72. Some suggestions on the art from one of the university's most skilled communicators.

21 - ON CONSERVATORSHIP by George J. Alexander. …

A Study Of The Flow Of Pulp Slurries Through A Motionless Mixer, Brian F. Berger

Paper Engineering Senior Theses

A study was conducted to determine the behavior of pulp flows through a motionless mixer. Specifically, the effects of stock consistency, pulp type, and number of mixing elements on the pressure drop across a motionless mixer were examined. An attempt was made to develop correlations between pressure drop across the motionless mixer due to pulp flows and the consistency of the pulp slurries. From the data generated by this study, it was determined that using the value of pressure drop across the motionless mixer to determine pulp consistency is not very feasible. However, the empirical data generated should be useful …

Effects Of Wastewater Discharges On Periphyton Growth In Lake Mead, Nevada-Arizona, Marsha Korb Morris

Publications (WR)

A study of the effects of secondary-treated wastewater on periphyton growth in Lake Mead, Nevada-Arizona was conducted from September 1979 to December 1980. Periphyton ash-free dry weight, chlorophyll-a, dominant species composition, and alkaline phosphatase activity were measured on fiberglass substrates. Substrates were incubated for two to four weeks in littoral and limnetic habitats. Physical and chemical variables and phytoplankton chlorophyll-a were measured concurrently.

Transparency increased with increasing distance from the discharge. Secchi depth ranged from 0.75 m at the discharge confluence (station 2) in August, to greater than 20 m at the most distant stations (stations 9 and 10) in …

The Prairie Naturalist Volume 14, No. 4. December 1982

The Prairie Naturalist

THE MICROBIAL AND VEGETATIONAL RESPONSE TO FIRE IN THE LYNX PRAIRIE PRESERVE, ADAMS COUNTY, OHIO ▪ A. E. Annala and L. A. Kapustka

ASPECTS OF BEHAVIOR IN FREE-RANGING BARBARY SHEEP (AMMOTRAGUS LERVIA) G. G. Gray and C. D. Simpson

HOME RANGES OF MULE DEER BUCKS IN THE TEXAS PANHANDLE ▪ B. H. Koerth and F. C. Bryant

DETERMINING SEX OF PLAINS POCKET GOPHERS BY INCISOR WIDTH ▪ R. M. Case and A. B. Sargeant

BOOK REVIEWS:

On Counting Birds ▪ S. A. Mikol

Freshwater Marshes ▪ R. M. Kaminiski

NOTICE TO AUTHORS ▪ Editor

INDEX TO VOLUME 14 …

Shire Of Manjimup : A Brief Assessment Of The Physical Land Resources With Respect To Horticultural Land Use, M R. Wells, K E. Hawley

Resource management technical reports

No abstract provided.

The Ias Bulletin, V16n3, November 1982, Iowa Academy Of Science

IAS Bulletin

In this issue:

--- 1982-83 A Year od Transition
--- Heritage Book Still Available at Reduced Prices
--- Update of Academy's Office Equipment
--- Heritage Authors Honored
--- Awards Committee Evaluates Nominations for the Governor's Science Medal
--- Proceedings Pipeline Continues
--- Evolution/Creation Archives Proposed
--- Farm House Burned (On Purpose)
--- Board Supports Formation of New Section to Replace Mathematics
--- Student Research Workshops Well-Attained
--- Membership Promotion
--- Education Committee Report Receives Wide Attention
--- Root Cause of Problems in Science Education Attributed to Public Priorities
--- Iowa Represented at National Meetings
--- Chemical Education Meeting
--- Reviews …

Spermidine-Condensed Phi X174 Dna Cleavage By Micrococcal Nuclease: Torus Cleavage Model And Evidence For Unidirectional Circumferential Dna Wrapping., Kenneth A. Marx, Thomas C. Reynolds

Dartmouth Scholarship

Spermidine-condensed phi X174 replicative form (RF) II DNA was digested with micrococcal nuclease to yield seven identifiable DNA bands forming an arithmetic fragment-length series. The DNA monomer unit length was found to be 780 +/- 80 base pairs. This result is most consistent with a proposed model for micrococcal nuclease cleavage of a DNA torus organized by the unidirectional, circumferential wrapping of B-geometry DNA. By a topological consideration, the blunt-end-rod-fusion model for torus formation [Eickbush, T. H. & Moudrianakis, E. N. (1978) Cell 13, 295-306] is shown to be inconsistent with our empirical solution results. We propose a continuous, circumferential …

State Of The Fisheries Report 1981, Department Of Fisheries And Wildlife, Western Australia

Status Reports of the Fisheries and Aquatic Resources

Western Australia continues to be one of the leading fishing States in Australia. The total gross value of fish, crustaceans and molluscs for 1980/81 was $82.8 million (Table 1) to which may be added the value of the pearl culture industry resulting in a total value of approximately $100 million.

San José Studies, Fall 1982, San José State University Foundation

San José Studies, 1980s

Volume 8, Issue 3

Agricultural Experiment Station News October 1982

Agricultural Research Division: News and Annual Reports

CONTENTS:
FROM THE DIRECTOR'S DESK
Grants, Contracts and Cooperative Agreements - FY 1982
New AES Leadership
SAHS SEZ
EXPERIMENT STATION SEMINAR
INSTRUMENT REPAIR SERVICE
NEW AND REVISED PROJECTS
GRANTS AND CONTRACTS
CALENDAR OF EVENTS
New Experiment Station Personnel
NEBRASKA AGRICULTURAL EXPERIMENT STATION PUBLICATIONS - September 1982

Environmental Influence On The Migratory Behavior Of The Brown Shrimp In Pamlico Sound North Carolina, Michael Andrew Matylewich

OES Theses and Dissertations

Environmental conditions in the nursery areas during times of development affect the migratory behavior of the brown shrimp (Penaeus aztecus) by influencing growth and natural mortality. A linearized logistic model and a multiple linear model are used to relate environmental factors (week number, water temperature, salinity, air temperature, precipitation, net heating degree days, river discharge) to the cumulative proportion of catch and catch-per-unit-effort, respectively. Multiple regression analysis yielded equations containing the week number, the water temperature and an interaction term as the independent variables. Predictions of total annual yield and total annual catch-per-unit-effort are made using the migratory …