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Special Seeds Help Weeds To Spread, Robert Dunlop Royce

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

PERHAPS the most important characteristic of a plant which establishes it as a weed is that it serves no useful purpose under the circumstances in which it occurs.

Black Rot Of Cabbage, Cauliflower And Related Plants, W P. Cass Smith

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

BLACK ROT is a widespread disease which attacks many kinds of cruciferous plants.

In Western Australia, it is most prevalent and serious on cabbage and cauliflower, but it may also attack many other related plants, including brussels sprout, broccoli, turnip, swede, and a number of weeds such as mustard and wild radish.

Fodder Shrubs In The Murchison, D G. Wilcox

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

THE Murchison pastoral country is usually thought of as either having a perennial grass cover, as in the Wandarrie, or as Mulga country with trees and short grass.

It is easy to overlook the small shrubs which occur all over the Murchison in every type of situation, and can provide high quality feed for sheep.

Trees Of Western Australia. No. 97. The River Gum (Eucalyptus Camaldulensis Dehn.). No. 98. Jutson's Mallee (Eucalyptus Jutsonii Maiden), Charles Austin Gardner

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

THIS tree, which has a wide range within the continent was for many years known as Eucalyptus rostrata, the Murray River Red Gum.

Food For Thought In Rabbit Poisoning, J W. Leighton

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

SINCE the introduction of the "1080" Poisoning Unit Scheme in 1955 by the Agriculture Protection Board reasonable control of rabbit numbers has been obtained.

Besides this many important side effects have resulted.

Honey Flora Calendar For August, R S. Coleman

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

A guide to flora available to honey bees during August in Western Australia

Research Report : Chemical Thinning Of Apples, J E L Cripps, N. J. Halse

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

MANY progressive fruit growers have adopted spray thinning of apples, and have found that it pays well.

More widespread adoption to reduce costs of production in the face of returns which show no tendency to rise, would benefit the apple industry.

For this reason improved recommendations have been formulated, based on local research.

Hard Seeds In Lupins, B J. Quinlivan

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

A study of hard seeds in the W.A. blue lupin is yielding some interesting facts about this important survival mechanism of pasture plants.

The knowledge gained will be useful in future pasture plant breeding projects.

SOME interesting facts on hard seeds in lupins have come from experiments commenced several years ago.

This article outlines the reasons for the experiments and the results with lupins so far.

Subsequent articles will cover subterranean clover and techniques for softening hard seeds in both species before planting.

Louisiana Agriculture: Economic Trends And Current Status, Leo Polopolus

LSU Agricultural Experiment Station Reports

No abstract provided.

Investment Theory And Forest Management Planning, Barney Dowdle

Yale School of the Environment Bulletin Series

No abstract provided.

Some Effects Of Ionizing Radiation On The Oral Suckers Of Rana Pipiens Embryos, Charles C. Reed

Journal of the Arkansas Academy of Science

No abstract provided.

List Of The Smut Fungi Of Arkansas, George E. Templeton

Journal of the Arkansas Academy of Science

No abstract provided.

The Fauna And Flora Of Horn Island, Mississippi, E. Avery Richmond

Gulf and Caribbean Research

From 26 February 1944 until 4 February 1945, I was stationed with the U. S. Army on Horn Island, Mississippi, and decided to observe and record the animals and plants existing there. At the time, it seemed that little attention had been devoted to the wildlife of this island, but eventually it became apparent that some studies had been made. However, many of the observations have not been published and many of the records of the flora and fauna living on and around the island are scattered and unavailable. The most outstanding papers include those of Lloyd and Tracy (1901), …

Specific Names Of The Atlantic American White Shrimp (Family Penaeidae), Gordon Gunter

Gulf and Caribbean Research

Penaeid shrimp are of special interest to zoologists for several reasons, one being the fact that they are unique among the decapod Crustacea in having a nauplius larval stage, which is otherwise found only in lower groups.

The shrimp catch of the south Atlantic and Gulf coasts in 1360 amounted to one-fifth of the total value of all fishery products of the United States (Power, 1961), and the shrimp fishery is the most valuable one in the country. The catch depends almost wholly upon three species, Penaeus aztecus Ives, P. duorarum Burkenroad and P. setiferus (Linnaeus) , according to current …

Perennial Atriplex Of Utah And The Northern Deserts, Craig A. Hanson

Theses and Dissertations

Atriplex is a genus in the Chenopodiaceae, the perennial members of which are ecologically important in western North America. Seventeen species and one subspecies of perennial Atriplex occur in Utah and the northern deserts. Three of these species and the subspecies were described by the writer in a recent publication as a result of extensive field work leading to this study. These are A. welshii, A. navajoensis, A. bonnevillensis, and A. cuneata ssp. introgressa. This study is an investigation of the systematics and phytogeography of the perennial Atriplex in Utah and the northern deserts, with emphasis on the A. gardneri …

A Study Of Nematode Parasites Of Some California Salamanders, Herbert Bruce Johnston

University of the Pacific Theses and Dissertations

Little information is available concerning the nematode parasites of salamanders in California. Lehmann (1954) reported the finding of Oxyuris dubia Leidy 1856, in the rectum of 33 Ensatine e. Eschscholtzii from Sonoma County, California, and in 3 of 10 Batrachoseps a. Attenuatus, from San Francisco County, California. He also reported Oxyuris magnivulvaris Rankin 1937 in the rectum of 1 to 2 Aneides flavipunctatus, from Marin County, California and Rhabdias sp., from lungs of 2 of 12 aquatic Triturus torosus from Contra Costa County, California. Lehmann (1960) reported O. dubia from the cloaca of 1 Aneides flavipunctatus and 3 Aneides lugubris …

Honey Flora Calendar For March, R S. Coleman

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

A look at Flora available in March

Translation Of Levit, A. V. 1962. Some Results Of A Study Of Domestic Animals For Toxoplasmosis In The Alma-Ata Oblast [= Obsledovaniya No Toksoplazmoz Domashnikh Zhivotnykh V Alma-Atinstoi Oblasti]. In Boev, S. N., Et Al., Editors. Parasites Of Farm Animals In Kazakhstan, I [= Parazity Sel'skhozyaistvennykh Zhivotnykh Kazakhstana, I]. Izdat. Akademie Nauk Kazakh Ssr, Alma-Ata, Pp. 20-25, A. V. Levit, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

1. Group biological probes on white mice were used to examine 64 dogs and 224 domestic cats. Toxoplasma was isolated from dogs in one test and from cats in another. In one case Toxoplasma was observed in a cerebrospinal fluid precipitate from cats.

2. In a CFR examination of blood sera from 1,132 domestic animals for toxoplasmosis, positive results were obtained from 25 (37.5%) dog sera, 28 (57.1%) rabbit sera, and 260 (33.4%) cattle sera.

3. In a CFR investigation of sera. from white mice used in bioprobes on domestic cats, toxoplasmosis antibodies were observed in 8 out of …

Interaction Between The Parameters Of Hydrostatic Pressure And Temperature On Aspartase Of Escherichia Coli, Roger D. Haight, Richard Y. Morita

Papers in Microbiology

HAIGHT, ROGER D. (University of Nebraska, Lincoln) AND RICHARD Y. MORITA. Interaction between the parameters of hydrostatic pressure and temperature on aspartase of Escherichia coli. J. Bacteriol. 83:112-120. 1962.-The data obtained from studies of an aspartase preparation and aspartase in cells of Escherichia coli indicate that there is an interaction between the parameters of hydrostatic pressure and temperature. Pressure was found to decrease aspartase activity at 45 C and lower in vitro and below 53 C in vivo, thereby indicating that when the enzymesubstrate complex is formed there is an increase in molecular volume which is counteracted by pressure. Above …

Translation Of Levchenko, N. G. 1962. Infection By Sarcosporidia (Genus Sarcocystis) In Farm Animals Of Southeast Kazakhstan [=Porazhenie Sarkosporidiyami (Roda Sarcocystis) Sel'skokhozyaistvennykh Zhivotnykh Yugo-Vostoka Kazakhstana]. In Boev, S. N. Et Al., Editors. Parasites Of Farm Animals In Kazakhstan, I. [= Parazity Sel'skhokozyaistvennykh Zhivotnykh Kazakhstana, I]. Izdat. Akademie Nauk Kazakh Ssr, Alma-Ata, Kazakh Ssr, Pp. 56-62, A. V. Levit, Frederick K. Plous Jr.

Harold W. Manter Laboratory of Parasitology: Library Materials

Conclusions

Farm animals in southeast Kazakhstan are widely infected with sarcosporidia: 96.9% of the sheep, 88% of the cattle, 70% of the camels, and 40% of the swine.

The muscles most often and most heavily infected are: in sheep, the heart, diaphragm, and median buttock muscle; in cattle, the heart and esophagus; in camels, the esophagus, diaphragm, and median buttock muscle; in swine, the heart, diaphragm, and median buttock.

The most objective data on infection of animals can be obtained by studying a minimum of 3 or 4 muscles of different muscular systems simultaneously.

Heavy infection of muscles by sarcosporidia, …

Studies On Parorchis Acanthus (Trematoda: Digenea) As A Biological Control For The Southern Oyster Drill, Thais Haemastoma, Nelson R. Cooley

United States Fish and Wildlife Service: Publications

Events in the attack on the southern oyster drill, Thais haemastoma, by miracidia of the digenetic trematode, Parorchis acanthus, are described.

Infection rates in wild drill populations of various Gulf Coast localities from Florida to Texas were low, but intensity of infection in individual drills was high and caused castration. Infection rates in laboratory experiments were high, but intensities were low.

Pathology of natural infections in drills is described. The infection lasts at least two years, possibly even for life.

Natural infection rates of juvenile herring gulls (Larus argentatus) , ring-billed gulls (L. delawarensis), and …

Cytochemical Studies On Trypanosoma Ranarum, Richard Cecil Brown

University of the Pacific Theses and Dissertations

The location of structures within an organism and the chemical nature of these structures can be determined by cytochemical techniques. Further, such techniques may be used to demonstrate the presence of an enzyme or an enzyme system within the cell. This information can assist in the elucidation of metabolic pathways available to an organism. Despite the apparently large potential value of cytochemical information, few investigations of the cytochemistry of trypanosomes have been reported, and there are no reports available of studies upon cultural forms.

Nigrelli (1929) utilized vital stains and osmic acid impregnation in studies on cytoplasmic inclusions in Trypanosoma …

The Chaetognaths Of The Dillon Beach Area And Their Possible Use As Indicators Of Water Movements, Roby Ward Renshaw

University of the Pacific Theses and Dissertations

In August, 1959, Pacific Marine Station became an active participant in the California Co-operative Oceanic Fisheries Investigations (C.C.O.F.I.). The program began in 1949 as an investigation of factors that might be associated with the disappearance of the California Sardine. Since that time, the general scope and purpose has broadened, and new information about the coastal water of California has been obtained. With each passing year, more information is being gathered and put to use. Participation in this program by Pacific Marine Station has consisted of taking monthly oceanographic observations near the head of Bodega Submarine Canyon, twenty-five miles west of …

Relative Growth In Some Antarctic Pycnogonida, William Granow Fry

University of the Pacific Theses and Dissertations

Work on the systematics of a large collection of Antarctic Pycnogohida has revealed very forcibly the limitations of existing systems of classification of this group. In an attempt to rectify some of these shortcomings for a monograph on the pycnogonid fauna of the Ross Sea area, the author has been led to seek new characters and character states which will be useful in taxonomy.

Virtually nothing is known of pycnogonid behaviour and ecology, and it seems unlikely that additional knowledge in these fields will be forthcoming in the near future. Our knowledge of pycnogonid comparative anatomy and histology is also …

The Origin And Development Of Sclereids In The Leaves Of Camellia Reticulata Lindl, Chris Kelvin Kjeldsen

University of the Pacific Theses and Dissertations

This study is concerned primarily with sclerenchymatous idioblasts. These idioblasts are polymorphic, and are commonly termed sclereids. The term sclereid is derived from the Greek work skleros (meaning hard). The hardness of sclereids and sclerenchyma tissue is due to their thickened cell walls, which are for the most part lignified. Their principal function is mechanical giving strength to plant tissue organs, therefore, enabling them to withstand various environmental stresses.

This paper deals with the foliar sclereid type of sclerenchymatous idioblast. The study of sclereids raises many of the fundamental problems of botany. Some of these are: growth and development, senescence …

Redescription Of The Adult Water Mite Hydrachna Miliaria And Description Of Its Life History, David Lou Kass

University of the Pacific Theses and Dissertations

During the summer of 1957 the writer became interested in water mites while collecting insects in an unnamed pond (see map in appendix) near Tomales, California. It was noted during that period that specimens of a giant water-bug, Lethocerus americanus Leidy (1847) had many larval mites attached to their ventral sides, and the lack of information concerning these animals and their life histories stimulated interest in investigating the problem detailed in this thesis. This work was begun in the summer of 1957 and has continued through the summer of 1959 and 1960.

Due to the lack of information and lack …

Studies On The Larval Development Of Rithropanopeus Harrisii (Gould) Of The Family Xanthidae (Brachyura), M. Roy Hood

Gulf and Caribbean Research

Because the early biologists did not see decapod larvae “in the act” of changing from one phase to another due to the fact that they were parts of planktonic collections and their parentage was unknown, each phase was given a generic and specific name of its own. Gurney (1921) did not concur with this practice, but was of the opinion that it is more profitable to assign larvae to definite genera or families, even if the reference proved to be wrong.

The chief difficulty encountered in rearing decapod larvae is the maintenance of a constant supply of suitable living food …

Studies On The Gonadal Pigments Of Cryptochiton Stelleri (Middendorff), Robert Eugene Senff

University of the Pacific Theses and Dissertations

The large gumboot chiton, Cryptochiton stelleri, (Middendorf, 1846) annually undergoes a reproductive cycle terminated by spawning in the spring. Cryptochiton stelleri is one of the marine invertebrates which possess carotenoid prognosis. Cryptochiton acquired its carotenoid moiety from the algae upon which it feeds. Following digestion carotenoids are transported to various sites in the body. The mechanisms and routes of this transport, as well as the eventual fate of the carotenoids in nutrition, are unknown. Perhaps storage in the animal occurs because of an inability to eliminate the carotenoids. On the other hand, the presence of carotenoids in the gonads would …

Reply To Dr. L.B. Holthuis On The Names Of White Shrimp, Gordon Gunter

Gulf and Caribbean Research

As an explanation to the reader it should be stated that my paper was submitted to Doctor Holthuis for Crustaceana. He asked me to withdraw it and I did so saying that I would publish it elsewhere. He then asked me to publish his remarks along with it, to which I agreed, and they are given above. However, his interpretations and ideas in this instance are contrary to the International Code of Zoological Nomenclature. Therefore, I have prepared the following rebuttal.

On The Names Of Penaeus Setiferus (L.) And Penaeus Schmitti Burkenroad, L.B. Holthuis

Gulf and Caribbean Research

Dr. Gordon Gunter, who sent me the manuscript of his paper “Specific Names of the Atlantic American White Shrimp (Family Penaeidae)” for comment was so kind to allow me to have my reactions to it published simultaneously with it. Unfortunately I cannot agree with Doctor Gunter’s views on the scientific names that should be used for the two Atlantic species of White Shrimp.

In the first place I believe that Doctor Gunter’s suggestion that the northern species should be known at Penaeus fluviatilis Say and the southern as P. setiferus (L.) instead of respectively P. setiferus (L.) and P. schmitti …