Life Sciences Commons^™

Poison Sedge Can Kill Stock, M E. Nairn, T. E. H. Aplin, D. S. Petterson, A. J. Brighton

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

POISON SEDGE was first suspected of being toxic to livestock in Western Australia nearly 80 years ago.

Sudden deaths of sheep grazing areas on which poison sedge grew have been reported from many regions from Geraldton to Scott River.

This article reports a case of poisoning in the field, and the experimental reproduction of poison sedge toxicity in pen-fed sheep.

Shothole Of Stone Fruit, Department Of Agriculture, Western Australia

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

Shothole disease is most damaging on almonds and early-flowering peaches and apricots but can also affect nectarines, plums and cherries.

The causal fungus IStigmina carpophila) survives the summer in infected buds and twig cankers.

The autumn rains then stimulate production of spores which infect other twigs, buds and subsequently the new spring growth.

Faulty Germination Of Lupin Seeds, B J. Quinlivan

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

THE number of lupin seed samples tested in the seed laboratory over the last few years has shown a marked increase with the increasing popularity of lupins as a cash crop.

A seed with satisfactory germination is one which produces a healthy seedling. The germination of lupin samples tested in the laboratory has varied markedly.

Barley Staining, J A. Parish, G. B. Crosbie, A. G. P. Brown, P. A. Portmann

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

GRAIN discolouration or "staining" is a quality defect in W.A. barley which substantially reduces the marketable value oi the crop. It also causes heavy losses to individual growers whose grain is docked or rejected.

Rapeseed. 4. Grain Quality, G B. Crosbie, M. L. Poole

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

RAPESEED is capturing an increasing share of the world edible oilseed market.

It competes with other oilseeds such as soyabeans, peanuts, sunflower and safflower seed.

If Western Australia is to share in these markets it is essential that only high quality seed is produced.

Commercial Production Of Egg-Plant, James P. Fallon

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

The egg-plant or aubergine (Solarium melongena) is a sub-tropical plant which is not only very tender to frost and low temperature, but requires a long growing season.

Observations On The Establishment Of Seedlings Of Phoradendron Californicum On Prosopis Juliflora, Richard L. Null

Dissertations and Theses

The mistletoe Phoradendron californicum is a common parasite on the mesquite plant Prosopis juliflora. Seeds of the parasite are deposited upon the host plant by birds and perhaps other agents. Normally seedlings of the parasite become established when the elongating radicle of the embryo comes into contact with a host branch and forms a holdfast. From the underside of the holdfast the primary haustorium enters the host tissue and establishes the parasitic union. Later the aerial portion of the parasite develops. Some seeds of P. californicum follow a different sequence; they stimulate the host to produce gum in the tissue …

A Rapid Serological Bean Blight Test And Antibiotic Control Measures, Terry Dee Miller

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The detection and identification of bacterial pathogens in bean tissues can be accomplished with relative ease and certainty by utilizing antiserum prepared against specific bean pathogens. This test requires only fifteen minutes to complete, and a minimum amount of equipment. In addition to speed and ease, it eliminates the difficult process of isolating the bacterial pathogens from the many contaminants that will grow in nutrient culture techniques. The advantage of this technique is primarily based on the utilization of the bacterial population already present in the diseased plant tissues.

The effectiveness of this method has been demonstrated by diagnosing beans …

Copper Requirements For The South-Eastern Wheatbelt, D J. Gilbey, K. D. Greathead, J. W. Gartrell

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

FARM experience and the results of five years intensive research have shown copper deficiency to be widespread in the south-eastern wheatbelt.

On many areas of the south-eastern wheatbelt, copper deficiency is likely to restrict wheat yields.

Better Rootstocks For Apple Trees, Frank Melville, J. E. L. Cripps

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

Mailing Merton rootstocks have given the best results in ten years' trials with apple rootstocks on Stoneville Research Station and on growers' properties.

THE type of rootstock used imparts important characteristics to an apple tree. Tree size and stability, cropping characteristics, susceptibility to soil-borne pests and diseases and, to some extent, fruit quality are all affected by the choice of rootstock.

The Control Of Algae, G R W Meadly

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

CONDITIONS in areas of still, stored water in Western Australia can easily become ideal for the development of algae and control measures may become necessary in farm dams and swimming pools.

Submitting Plants For Disease Identification, M D. Marcley

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

THERE are several important points to remember when submitting plant material for disease identification by the Department of Agriculture's Plant Pathology Branch.

Superphosphate Deficiency Raises Pasture Oestrogens, H G. Neil, T. Marshall

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

A recent field experiment on established pastures at Esperance Downs Research Station has demonstrated a relationship between superphosphate application, pasture oestrogens and oestrogenic response in sheep.

Results of the experiment indicate that on phosphate deficient soils carrying oestrogenic clovers, the levels of oestrogenic materials in the pasture are increased if superphosphate applications are below those recommended for healthy pasture growth.

Lupins In Western Australia. 5. The Grazing Value Of Green And Mature Lupins, John Sylvester Gladstones

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

WHETHER or not lupins are grown primarily as a grain crop, grazing of standing crops and harvested stubbles will continue to be an important use. This article examines the uses of sweet lupins for forage, and the main problem of lupin grazing, lupinosis.

Lupin Diseases, H L. Harvey

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

The two major diseases of lupins in Western Australia, brown spot and bean yellow mosaic, can be reduced by careful management of lupin crops.

Growing Barley For Grain In Western Australia : Barley Quality, J A. Parish

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

Plumpness and absence of pinched grain are desirable for both malting and feed barley.

This is a brief discussion of various Quality standards in barley and how they may not be met.

Systematic Infections For The Assay Of Plant Viruses, Myron K. Brakke

Department of Plant Pathology: Faculty Publications

The first infectivity assays of plant viruses relied on the percentage of inoculated plants becoming systemically infected. The use of systemic infections for assays became unfashionable, however, after the discovery of local lesions and the demonstration that their numbers depended on virus concentration. Continued emphasis on local lesions over the years led to the widely held belief that systemic infections could not be used for a reliable and accurate assay of plant viruses. There was never any good statistical evidence for this viewpoint. In fact, no thorough investigation has been published of the accuracy of "systemic assays" of plant viruses, …

Enzymatic Evidence That Leucine From Tentoxin In Levorotatory, J. T. Daniel, George E. Templeton

Journal of the Arkansas Academy of Science

No abstract provided.

Macroscopic And Microscopic Responses Of Gossypium Hirsutum L. To Hydrogen Fluoride Fumigation, Dan Timmermann Jr., Howard G. Applegate, E. Mark Engleman

Journal of the Arkansas Academy of Science

No abstract provided.

Growing Barley For Grain In Western Australia : Varieties And Production Methods, H M. Fisher

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

BARLEY is an adaptable crop which can be grown successfully throughout the cereal areas of Western Australia. It is more suited to the wetter areas than wheat and tolerates the drier, shorter season of the eastern cereal districts better than oats.

Protein Synthesis During Fungal Spore Germination. Iv. Transfer Ribonucleic Acid From Germinated And Ungerminated Spores, James L. Van Etten, R. Kent Koski, Mahmoud El-Olemy

Department of Plant Pathology: Faculty Publications

Transfer ribonucleic acid (tRNA) fractions isolated from germinated and ungerminated spores of Botryodiplodia theobromae and Rhizopus stolonifer had acceptor activity for all 20 amino acids commonly found in protein, when tested with an enzyme fraction from germinated spores. Accordingly, it is unlikely that the absence of tRNA for a particular amino acid limits protein synthesis in fungal spores.

Characterization Of Xanthomonas Phaseoli Bacteriophages, Anne K. Vidaver, Max L. Schuster

Department of Plant Pathology: Faculty Publications

Ten bacteriophages for Xanthomonas phaseoli were characterized. On the basis of adsorption rates, latent period and burst size, plaque morphology, host range, efficiency of plating, ultrastructure, sensitivity to osmotic shock, streptomycin sensitivity, temperature effects on plating efficiency, and serology, the phages were separated into at least three groups. Some of the phages were infectious for Pseudomonas phaseolicola (four strains) and P. syringae (one strain) in a narrow temperature range. The taxonomic and ecological significance of this finding is discussed.

Overwintering Of Erwinia Amylovora Inside Living Host Tissue In Cache Valley, Utah, G. Doyle Morrill

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Experiments were conducted to see if Erwinia amylovora (Burrill) Winslow et al. overwinters inside living host tissue in Utah. Bacteria, collected from apple, pear, mountain ash, chokecherry and Pyracantha, were used in the experiment. Isolates taken from buds and inner bark plated on nutrient yeast dextrose agar, we re tested by serological and bacteriophage techniques. Those showing positive tests were then inoculated into Bartlett pear seedlings to test virulence.

Both virulent and avirulent isolates were isolated from each species of plant in the experiment. Pathogenic bacteria were isolated from diseased tissue near cankers, as well as from apparently healthy inner …

Lupins In Western Australia. 1. Species And Varieties, John Sylvester Gladstones

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

First in a series of articles on the varieties, cultivation and uses of lupins in Western Australia.

Lupins are ideally suited to the climate and soils of many districts of Western Australia and their cultivation here dates from the early years of the century.

However, although there were some 500,000 acres of lupins growing in the State in 1968, their cultivation in recent years has been largely limited to infertile sandplain soils where other legumes usually fail.

Paspalum Vaginatum : For Salty Seepages And Lawns, C V. Malcolm, I. A. F. Laing

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

PASPALUM VAGINATUM, aptly termed "sea shore paspalum" has an amazing ability to thrive in wet salty situations. It is also a good lawn grass.

Seed of the grass is not available but it may easily be established by planting pieces.

This article reviews where and how the grass may be used.

Potato Early Blight And Storage Rot, Department Of Agriculture, Western Australia

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

POTATO Early Blight and storage rot are different phases of the same disease.

Both symptoms are caused by the fungus Alternaria solani.

Controll Of Eelworm Diseases Of Bananas In Western Australia : A Review, O M. Goss, M. G. Hawson

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

During the 1950's, a decline in bananas in plantations in Carnarvon, caused by heavy infestations of eelworms, prompted investigations into eelworm control.

The work was started in 1955. The results and recommendations based on experiments have been published in Department of Agriculture Bulletin 3532.

Pasture Establishment In The Wheatbelt, M L. Poole

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

The value of legume based wheatbelt pastures is so great that considerable care is warranted during their establishment. Without such care patchy establishment or even complete failure is likely to occur.

IN THE WHEATBELT too many farmers still put less effort into their seeding of pasture species than their seeding of crops.

This may be because both compete for the farmer's time in the busy seeding period and it is the cereal crop which possesses the obvious cash value.

However, the total value of a good pasture has to be assessed over a period of several years because of its …

Dehulling And Scarifying Serradella Seed, J R. Weeldenburg, R. W. Smith

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

YELLOW FLOWERED SERRADELLA is growing in popularity as a pasture legume on coastal sandy soils in Western Australia, and its use may increase further when new selections become available.

However, its rate of entry into commerce has been limited by the poor germination of the seed available.

Linseed Production Survey : Esperance, 1968, R J. Guyton

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

A SURVEY conducted after the 1967 linseed season found that although most farmers understood the requirements of linseed growing there were several crop failures. These were associated with time of planting, soil type and insect control measures.

The Esperance district office of the Department of Agriculture conducted a second survey during December, 1968 and January, 1969