Agronomy and Crop Sciences Commons^™

Cereal Variety Trials, 1961-62, J T. Reeves

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

DURING the 1961-62 season cereal variety trials were sown at eight research stations in the medium and low rainfall areas of Western Australia.

The 1964 Ord River Cotton Crop, G D. Oliver, A. W. Hogstrom

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

IN November-December, 1963, the first five farmers allocated land in the Ord River Irrigation Area planted their first crop of cotton, which is expected to be the major crop grown in the area.

The crop was harvested in May-June, 1964, and has since been sold.

Deep Sowing Of Wheat : The Effect On Root Systems, S C. Chambers

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

DEEP sowing appears to be an important cause of poor emergence in wheat and care should be taken to seed at the recommended depth of 1 to 1J inches.

Nevertheless some growers in drought liable areas, persist in sowing at 2 to 3 inches in the belief that it will encourage a deep root system.

Wild Oats In Wheat, J G. Paterson

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

Trials with a new chemical suggest that economical control of wild oats in wheat is only possible in heavily infested crops.

I N recent years there has been a marked increase in the incidence of wild oats in the wheat areas of this State. Three factors have been responsible.

Side-Oats Grama In The Central Great Plains, L. C. Newell, R. D. Staten, E. B. Jackson, E. C. Conard

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Side-oats grama, Bouteloua curtipendula (Michx.) Torr., is a warm-season grass distributed widely in the native grasslands of continental United States. It has long been considered a valuable forage grass. Its habit of growth and favorable seed-producing qualities have suggested its suitability for domestication as a pasture crop. Investigations which contributed to the domestication of side-oats grama were conducted at the Nebraska Agricultural Experiment Station in a 12-year period, 1948 to 1960. Field trials were carried on to evaluate forage and seed yields of selected strains and varieties from different regions. The photoperiodic responses of these strains were studied under controlled …

Clover Ley Farming In Western Australia : An Important Research Project, T C. Dunne

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

IT is an accepted fact that the pasture period developed as an alternative to cropping in areas where cereals are grown results in increased fertility and a potential for higher cereal crop yields.

List Of Registered Fertilisers For 1962, H G. Cariss

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

IN accordance with the provisions of the Fertilisers Act, 1928-1955, it is required that—with the exception of bulk sales to a manufacturer and those made in accordance with a buyer's written prescription—all fertilisers sold must be registered annually.

The registration year is from November 1 to October 31 in the following year. The list of fertilisers registered for the year commencing November 1, 1961, is set out in the following tables.

Barrel Medics For Eastern Wheatbelt Pastures, D B. Argyle

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

There is a big potential for the use of barrel medic in wheatbelt pastures, and prospects have been further improved by the advent of the early-maturing Cyprus strain.

In this article Merredin Agricultural Adviser D. B. Argyle gives some hints on establishment and management of barrel medic pastures in the eastern wheatbelt.

Much of what he says also applies to other areas; contact your local adviser for further information.

Cotton Growing On The Ord River, N J. Thomson

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

Cotton growing is nearing the commercial stages on the Ord River, with the first farm scale crops now ready to harvest on the Pilot farm, and the Kimberley Research Station.

It is already backed by some years of experimental work at K.R.S., which has provided the background for this article giving the first recommendations on cotton growing for future settlers in the Ord River Irrigation Area.

Root Diseases In Wheat On Clover Ley : Factors Under Investigation. 5. The Evaluation Of Fungicidal Treatments, S C. Chambers

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

The use of fungicides, either as seed or soil dressings, for the control of root rotting diseases of wheat, was examined in a series of field experiments.

Results suggest that seed dressings have no effect on the incidence of root rotting fungi in the mature crop.

When fungicides were applied to the soil, a reduction in the incidence of take-all was noted in one experiment, but the same treatments had toxic effects on plants in a second similar experiment.

The Effects Of Irradiating Dormant Maize Seeds With Xrays And Thermal Neutrons, Rosalind Morris, E. F. Frolik

Nebraska Agricultural Experiment Station: Historical Research Bulletins

In 1951 a research program was started at the University of Nebraska to compare the developmental effects of thermal neutrons and X rays on different crop seeds. Three crops, barley, tomato and maize, were chosen for additional information involving induced chromosomal aberrations and seedling mutations. The maize investigations are presented in this bulletin, along with a comparison among the three crops with respect to irradiation effects.

The Performance Of Alfalfa Synthetics In The First And Advanced Generations, W. R. Kehr, H. O. Graumann, C. C. Lowe, C. O. Gardner

Nebraska Agricultural Experiment Station: Historical Research Bulletins

During alfalfa breeding investigations conducted at the Nebraska Agricultural Experiment Station, numerous superior clones were selected and tested as clones, and in polycross progeny tests. Information was needed on the performance of synthetic varieties in the first and advanced generations, on the optimum number of clones to include in a synthetic variety, and on parent-progeny relationships. Clones with high general combining ability for forage yield as measured by polycross progeny tests, and in certain instances specific combining ability based on single-cross tests, were intercrossed in various ways to produce synthetic varieties. A group of synthetics varying in number of parents …

Progress From Recurrent Selection Procedures For The Improvement Of Corn Populations, John H. Lonnquist

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The possibilities of developing synthetic varieties suitable for the fringe areas of the corn belt, where cost of hybrid seed is high relative to the value of the expected crop, and in areas where hybrid corn might not be a feasible approach for other reasons, made it seem a worthwhile objective for study. Effort has been made in recent years to increase the productivity of hybrid combinations through selection of new superior lines using standard breeding procedures. The limited progress realized has resulted in an increased interest in the possible use of alternate methods for the development of superior germplasm …

The Use Of Nitrogenous Fertilisers For Cereal Grain Production In Western Australia, William John Toms, G. H. Burvill

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

NITROGENOUS fertilisers have so far been little used in Western Australia for wheat, oats and barley grown for grain.

However, profitable results can follow their use under some conditions. Farmers who have seen field experiments are now interested in the use of nitrogenous fertilisers.Further interest will be stimulated by recent reductions in price.

This article answers common questions asked by farmers about nitrogenous fertilisers for cereals. It is based on over 100 experiments conducted by the Department of Agriculture during the past 30 years.

Spread Super For Cereal Crops, T E. Mcdowell, J. A. C. Smith, W. J. Toms, M. D. Carroll

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

THE use of bulk superphosphate broadcast direct on to the paddocks is a new method of reducing fertiliser costs.

But it has long been known that broadcasting phosphate is less efficient than drilling it in with the seed.

The experiment reported here was designed to demonstrate this point.

Microorganisms And Soil Structure, T. M. Mccalla, F. A. Haskins

Department of Agronomy and Horticulture: Faculty Publications

SUMMARY

Good stable soil structure is valuable for promoting the growth of plants and micro-organisms by permitting enhanced aeration and water penetration and by decreasing erosion under some conditions.

Micro-organisms influence water percolation through the soil. They may plug up soil pores with byproducts of growth and reduce water percolation. On the other hand, if a soil containing a large amount of microbial products is stirred and allowed to dry, then the percolation may be high.

Micro-organisms are involved in stabilizing soil structure by their products of decomposition and their cellular binding material, such as mycelia. Microorganisms differ greatly in …

Pensternon In Your Garden, Glenn Viehmeyer

Department of Agronomy and Horticulture: Faculty Publications

A new race of hardy perennials is beginning to appear in American gardens. These are the penstemons, a genus of plants closely related to the familiar snapdragon, which may become important ornamentals as they become better known to gardeners. The purpose of this bulletin is to show the possibility of the genus as an ornamental and to suggest species and species hybrids of possible value to Great Plains gardeners; to provide information about propagation and culture; and to encourage gardeners to engage in penstemon breeding as an avocation.

Genetic Studies Of Winter Hardiness In Barley, C. R. Rohde, C. F. Pulham

Nebraska Agricultural Experiment Station: Historical Research Bulletins

An important obstacle toward the development of winter barley varieties with a higher level of winter hardiness has been the deficiency of genetic information on this character. The primary objective of these studies was to obtain information on the genetics of the winter hardiness of a group of 18 winter barley varieties which originated from widely different geographic areas of the world. It was hoped that this information might be helpful in determining whether or not it would be possible for barley breeders to combine different genetic sources of winter hardiness and attain a higher level of hardiness than presently …

The Significance Of Xenia Effects On The Kernel Weight Of Corn, T. A. Kiesselbach

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The purpose of this paper is to appraise the xenia effects of the pollen parent on the kernel weight of corn (Zea mays L.), and to interpret so far as possible their genetic, physiologic and applied significance. The conclusions will be based on local experiments and a review of the literature.

Some Results With Nitrogen Fertiliser On Cereals At Esperance Plain Research Station, William John Toms

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

ON newly-cleared land at Esperance Plain Research Station the use of sulphate of ammonia on cereals has proved profitable over a number of seasons.

The response to sulphate of ammonia varies markedly with the season.

The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier

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

IN a recently published economic survey of the Australian wheat growing industry, it was reported that nearly two-thirds of the farms surveyed in Western Australia were located on lateritic "sand plain."

As a random selection was made of the eighty farms that were visited it is reasonable to conclude that a similar proportion of all the State's wheat producing farms are on that type of country.

This constitutes a remarkable change from the earlier days of wheat belt settlement when the sand plain soils were regarded as virtually useless and by-passed for development.

It is the purpose of this article …

Yields In Different Cropping Systems And Fertilizer Tests Under Stubble Mulching And Plowing In Eastern Nebraska, F. L. Duley

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The material in this report will be confined chiefly to studies on crop production with stubble-mulching compared with plowing. Major cash crops have been studied in different rotations including legumes and non-legume crops. In all tests, plowing has been compared with subsurface tillage. Different types of equipment have been devised and tested for the various operations during the course of these studies.

Agricultural Aircraft Equipment, N. Shafer

Nebraska Agricultural Experiment Station: Historical Circulars

This bulletin gives a detailed account of the installation, operation, and performance of spray dispersal equipment as tested on the Piper PA-18A airplane. Equipment is also applicable to other types of agricultural aircraft now being used. A list of various aircraft equipment and where it can be obtained is included.

Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia

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

INTEREST in the agricultural potential of the Kimberley region in Western Australia dates from its early exploration and settlement in the last century.

Several farming development schemes were considered for the area, but were never implemented.

This could be mainly attributable to lack of knowledge of agricultural potentialities, limitations of the local environment and ways of exploiting the local environment.

Up to the present the economy of the region is almost entirely based upon the extensive production of beef and to a lesser extent, wool.

The Geraldton Strain Of Subterranean Clover, A J. Millington

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

THE cereal-growing areas of Western Australia form a narrow triangle extending about 700 miles from north to south, gradually increasing in width towards the south to about 150 miles.

Origin And Performance Of Ranger Alfalfa, W. R. Kehr

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Ranger alfalfa was developed through the cooperative efforts of personnel of the United States Department of Agriculture and the Nebraska Agricultural Experiment Station and released for seed increase in 1940. It is a winter-hardy, bacterial wilt resistant variety synthesized from five basic strains selected from Cossack, Turkistan and Ladak. Breeding methods used in the development of this variety were described in detail. Research results obtained on the performance of the basic strains and on the seed lots, produced under certification procedures, in controlled wilt and cold tests and forage yield trials under field conditions at the Nebraska station were presented …

Symptoms And Control Of Zinc Deficiency In Corn, F. V. Pumphrey, F. E. Koehler

Nebraska Agricultural Experiment Station: Historical Circulars

The purpose of this publication is to describe zinc deficiency symptoms in corn and to present recommendations for applications of zinc fertilizer.

Revised Grain Standards...Their Effect On Nebraska Wheat In 1957, J. A. Goodding, C. J. Miller

Nebraska Agricultural Experiment Station: Historical Circulars

Although Federal grain standards for Hard Red Winter Wheat were revised in 1957, a Nebraska Experiment Station study shows that the new regulations had very little effect on grades received by wheat marketed at country points by Nebraska farmers in 1957. Results of the study are described in this circular.

The Effect Of Inbreeding Diallel Crosses Of Inbred Lines Of Corn Selected For High And Low Combining Ability, Melvin Dale Rumbaugh

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

The present day hybrid seed corn industry is based upon the development and utilization of inbred lines in hybrid combination. Current breeding procedures are largely predicated on the assumption that the actions of complementary, dominant or partially dominant favorable genes are responsible for the heterosis observed in the hybrids produced. If heterosis were due in considerable part to nonallelic interactions or to overdominance, the present breeding procedures might be expected to yield superior hybrids but would not be highly efficient.

Since the proposal of complementary growth factors as a genetic explanation of heterosis and the alternative proposal of physiological stimulation …

Effect Of Time Of Cutting On Yield And Botanical Composition Of Prairie Hay In Southeastern Nebraska, Elverne C. Conard, Vincent H. Arthaud

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Approximately three and one-third million acres of native prairie are harvested annually in Nebraska for hay. In the four-year period 1948-1951, the State ranked first in wild hay production with an average yield of more than two and one-quarter million tons per year. This crop is an important natural resource in Nebraska's livestock industry. Studies were initiated in 1945 to determine the effects of time of cutting on the yield and feeding value of prairie hay in southeastern Nebraska. The studies were continued through the summer of 1952 to determine the effects of different cutting treatments on the vigor and …