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Early Hail Marks On Apples Do Not Grow Out, N H. Shorter, J. C. Rowbotham

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

ALTHOUGH the 1964/65 season brought a record crop with a good proportion of high quality fruit, the year was marred by several violent hailstorms in separate parts of the South-West.

Recommendations For Doublegee, Geoffrey A. Pearce

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

Is it worth losing the legume component of the pasture in order to kill the doublegee?

Kimberley Research Station Progress Report, 1964 : Insect Pests And Insecticides, K T. Richards

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

FOR the past four years, detailed studies have been carried out in regard to the identification, status, bionomics, and control of insects and mite pests attacking the various crops grown in the Ord River Irrigation Area.

Root-Bound Shrubs, Department Of Agriculture, Western Australia

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

THE illustrated garden shrub (Cotoneaster) strangled itself with its own roots.

When purchased several years earlier it had been in the pot too long and the young roots, not being able to grow straight down had spiralled round and round in the pot.

Molybdenum Increases Cereal Yields On Wheatbelt Scrubplain, R J. Doyle, R. J. Parkin, J. A. C. Smith, J. W. Gartrell

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

IN four field experiments and two paddock strip trials since 1960, molybdenum applied to wheat and oats grown on scrubplain soils in the eastern wheatbelt increased yields by up to 3 i bushels of wheat and 5^ bushels of oats per acre.

Chromosome Numbers Of Spermatophytes, Mostly Californian, Peter H. Raven, Donald W. Kyhos, Albert J. Hill

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

The Control Of Weeds In Orchards, Geoffrey A. Pearce, S. E. Hardisty

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

THE use of herbicides for the control of weeds in orchards has become established during the past few years.

It has become more efficient with the introduction of newer herbicides which have proved more effective and less dangerous than some of those recommended in the past.

Herbicides For Firebreaks, Geoffrey A. Pearce

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

IN recent years, great interest has been shown in the possible use of chemicals for creating firebreaks as an alternative to cultivation.

The advantages are obvious, and suitable treatments are available; the main deterrent at the present time is cost.

Gorteria : A Recently Recorded Weed, Department Of Agriculture, Western Australia

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

A NUMBER of our major weed pests including Cape t u l ip and double gee are native to South Africa.

It is not surprising, therefore, that Gorteria, recently recorded for the first time in Western Australia, also comes from that country.

Dairy Farming In The Busselton-Margaret River District. Part 4. Pasture Production, R A. Bettenay

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

If deteriorated pasture and underdeveloped pasture in the Busselton-Margaret River district could be improved to the standard of the present highly productive pastures stocking rates could be improved by more than 50 per cent.—final article in a series reporting the results of a survey of farm practices in the district.

Aspen Snag Yields Record Bitterbrush Seed Cache, Edward R. Schneegas

Aspen Bibliography

No abstract provided.

A Comparative Study Of Wood Pulp From The Trunk, Limbs, And Roots Of The Quaking Aspen (Populus Tremuloides), John Vernanth, Raynell Walker, Ann Johnson

Journal of the Minnesota Academy of Science

A three part study was conducted on a single quaking aspen tree (Populus tremuloides): ( l) the strength and other physical properties of fiberboard made from the trunk, roots, and limbs using the cold soda pulping process, (2) the strength properties of paper made from the trunk, root, and limb sections using the Kraft pulping process, and (3) a chemical analysis of the trunk, roots, and limbs. Results of these studies indicate there are significant differences in many of the properties of the three parts of the tree, and that parts of the tree other than the trunk possess useful …

Comparative Histological Techniques And The Foliar Anatomy Of Crassula Argentea, Thomas L. Rost

All Graduate Theses, Dissertations, and Other Capstone Projects

Leaves of Crassula argentea exhibit characteristics common to many succulent plants. A thick waxy cuticle, thin-walled parenchyma, thin cytoplasmic layer, and large vacuole all function in a water storage capacity. Hydathodes are demonstrated to perform guttation. The internal distortion of prepared tissues is shown to be a function of the difference in hydrogen ion concentrations between the fixatives and the C. argentea tissue.

Weed Control In Irrigation Channels, Geoffrey A. Pearce

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

Probably the major task involved in maintaining drainage and irrigation channels is the regular removal of weed growth.

The cost of hand chipping a standard head channel is approximately 10s. per chain.

The use of suitable chemicals could reduce this cost considerably.

Puccinellia : Outstanding Saltland Grass, C V. Malcolm, S. T. Smith

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

"Puccinellia" is a tussocky perennial grass with an outstanding ability to survive salty and waterlogged conditions.

Considerable areas of saltland in Western Australia are suited to its growth.

Seed is now available commercially and in this article the conditions to which the grass is suited are described and establishment and management methods are suggested.

Kimberley Research Station Progress Report, 1964 : Oil Crops, D F. Beech, M. J. T. Norman, W. R. Stern

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

INVESTIGATIONS on the adaptation of a range of oil crops to the Ord River environment have been in progress since the early years of the Station.

Weed Control : Watsonia, Onehunga Weed, Western Australia, Geoffrey A. Pearce

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

Suggested controls for two persistent weeds.

Plant Nutrition In Western Australia, George Henry Burvill

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

PLANT nutrition is of great practical importance in Western Australia.

Without a well developed fertiliser industry and research and experiments to guide farmers in appropriate fertiliser use the State's agriculture would be very restricted.

Thimet For Woolly Aphis Control, G D. Rimes

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

THE woolly aphis Eriosoma lanigerum (Hausm) has been known as a serious insect problem in Western Australia since the early days of apple growing.

It was distributed on nursery stock to most parts of the world in the early days of horticulture.

A Herbicide For Native Poison Plants, Department Of Agriculture, Western Australia

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

THE usual method of killing poison plants is by a programme of ploughing, cropping and burning.

The burning not only destroys a proportion of the plants, but stimulates the germination of dormant seeds, which otherwise would remain in the soil in a viable condition for many years.

Stinkwort (Inula Graveolens Desf.), G R W Meadly

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

THE original home of stinkwort is the Mediterranean region, including northern France. Apparently the first Australian record was at Onkaparinga in South Australia about 90 years ago.

Efforts were made to keep it in bounds during the years immediately following introduction, but it continued to spread and is now f i r m ly established in all agricultural districts of South Australia.

It also covers large tracts of land in New South Wales and Victoria and occurs in most districts of Western Australia.

Root Knot Eelworm And Its Control, O M. Goss

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

ROOT galling caused by root knot eelworm attack is very common in the lighter sandy soils of Western Australia.

This parasitic worm causes severe unthriftiness which may even result in the death of the plant, particularly during the summer months when the disease is most damaging.

Root knot eelworm has a wide host range.

The Naturalised And Cultivated Annual Medics Of Western Australia, B J. Quinlivan

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

IT is not many years since the term pasture improvement in Western Australia was synonymous with one species only, subterranean clover.

The amazing adaptability of this species to the environment enabled it to be grown in a wide range of rainfall conditions and in many different districts.

Robinia : The False Acacia, Robert Dunlop Royce

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

ROBINIA, the false acacia, is a tree up to 60 feet high, and is native to the eastern United States.

There it develops a trunk 3 or 4 feet in diameter and produces a hard close grained and durable timber.

In America it is known as black locust or simply as locust.

Wheat Quality Surveys In Western Australia. 2. Variation Between Seasons And Localities In The Production Of High And Low Protein Wheat, J A. Parish

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

Although the protein content of West Australian f.a.q. wheat averages only 9.4 per cent., often substantial amounts of comparatively high protein wheat are contained in this mixture.

However the quantity varies widely from year to year and is obtained from widely scattered areas of the wheatbelt.

Pasture Seeds : 1965 Statistics And Comments, B J. Quinlivan

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

A KNOWLEDGE of market conditions and procedures is not of direct importance to some primary producers.

For example, cereal growers as individuals are neither in a position to negotiate prices nor does their production have any direct effect on prices.

Mechanisms Controlling The Formation And Persistence Of The Corpus Luteum, L. L. Anderson, R. M. Melampy

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

Mechanisms which control formation of corpora lutea during the estrous cycle, and particularly factors affecting their persistence and regression in various reproductive stages, have been of considerable interest to physiologists concerned with developing methods for control of the estrous cycle in domestic animals. Some recent reviews on control of ovarian function are those by Chester Jones and Ball (30), Anderson et al. (9) and Short (121).

The Role Of Light In The Regulation Of Cyclical Estrous Activity In Sheep, M. T. Clegg, H. H. Cole, W. F. Ganong

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

The widespread existence of biological clocks among animals is documented by a considerable body of evidence. Recently Farner (13) has reviewed this subject covering information on a large variety of animals. In this paper an attempt will be made to restrict most of the discussion to sheep. Experimental data from other species, however, will be cited when it can be usefully related to an understanding of the mechanisms controlling seasonal breeding activity in this species. As far as present knowledge is concerned, the factors regulating or at least monitoring annual physiologic cycles appear to depend greatly upon the influence of …

Comments And Conclusions Concerning Studies On Estrous Control In Domestic Animals, H. H. Cole

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

Let me allay at once any apprehension you may have that I am about to recapitulate all that has been said during the past two days. Redundancy at this time would merely accentuate your current soporific state. Thus I shall take advantage of the prerogative of seniority to modify the title of my talk to "Comments and conclusions concerning studies on estrous control in domestic animals."

Evaluation Of Methods For Controlling The Estrous Cycle, William Hansel

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

Truly effective estrous cycle synchronization techniques are of great potential value to commercial producers of beef and dairy cattle, sheep, and swine. Many commercial beef cattlemen recognize the merits of using outstanding sires through artificial insemination (AI) to produce greater numbers of faster gaining cattle having the most desirable carcass characteristics. The relatively high heritability of feedlot gains makes this idea particularly attractive. Nevertheless, progress in attaining this goal has been rather slow, mainly because of the practical problems involved in breeding range cattle artificially and the low conception rates frequently obtained. Methods for cycle regulation compatible with the most …