Life Sciences Commons^™

The Development And Failure Of Historic Agricultural Communities Of Utah: A Case Study Of Johns Valley, Utah, Wayne R. Shelley

Theses and Dissertations

Many agricultural communities have developed in Utah since the first settlement, but many no longer exist today. Some of these early communities experienced a "boom and bust," while others struggled for several years and were eventually abandoned. Johns Valley is a good example of these historic communities, as it experienced rapid growth and times of success and prosperity, yet it struggled and was eventually abandoned.
The situation in Johns Valley, from its early settlement to its demise, demonstrates the hope of the people who settled there and their efforts to make Johns Valley a productive and successful area. History also …

Expression Of Holo And Apo Forms Of Spinach Acyl Carrier Protein-I In Leaves Of Transgenic Tobacco Plants, M. A. Post-Beittenmiller, Katherine M. Schmid, J. B. Ohlrogge

Scholarship and Professional Work - LAS

Acyl carrier protein (ACP) is a chloroplast-localized cofactor of fatty acid synthesis, desaturation, and acyl transfer. We have transformed tobacco with a chimeric gene consisting of the tobacco ribulose-1,5-bisphosphate carboxylase promoter and transit peptide and the sequence encoding the mature spinach ACP-I. Spinach ACP-I was expressed in the transformed plants at levels twofold to threefold higher than the endogenous tobacco ACPs as determined by protein immunoblots and assays of ACP in leaf extracts. In addition to these elevated levels of the holo form, there were high levels of apoACP-I, a form lacking the 4'-phosphopantetheine prosthetic group and not previously detected …

Rangeland Surveys : A Basis For Improved Land Use, P J. Curry, Alan Payne

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

In mis 1988, the Department of Agriculture started a three-year programme to assist pastoralists in the Murchison River catchment to update land management planning of their stations. This Project, which is funded by the National Soil Conservation Program, will use interim results from a recent rangeland survey which has investigated and mapped the grazing recources throughout the region.

Elsewhere in Western Australia's pastoral areas, information on the productive potential of each area - and the management problems inherent for each class of land - are being used to help pastoral managers of Soil Conservation Districts rehabilitate degraded areas. This information …

Evaluation Of Trifolium And Ornithopus Species., Richard Snowball

Experimental Summaries - Plant Research

89AL26, 89MC6, 89W10, 89HA3, 89N058

Trial work in 1989 included the following:

Medina: 1. Re-evaluation of Persian and Balansa clovers.
2. Confirmation of sorted types from new collections.
3. Regeneration of old collections.
4. Seed increase of Persian and Balansa clovers.
5. New Serradella collections.
6. New Trifolium collections.

Country: Selected lines of Persian, Balansa and other Trifolium species at:

1. Green Range.
2. Manjimup.
3. Wokalup.
4. Harvey.
5. Goomalling.

Nitrogenous Fertilizers For Cereals., M. G. Mason

Experimental Summaries - Plant Research

Trial 87CI

Rates of nitrogen on continuous wheat on heavier land.
Location: North Mullewa Research Station.

Trial 80WH3, 80MI, 80N3.

Effects of Agras No. 1 on soil pH and wheat yield.
Location: Wongan Hills Research Station, Merredin Research Station, Newdegate Research Station.

Trial 78WH3

Effect of stubble treatment on nitrogen fertilizer requirement.
Location: Wongan Hills Research Station.

Trial 89WH18

Effect of banding sources of nitrogen on grain yield.
Location: Wongan Hills Research Station.

Trial 89M2 (a)

Nitrification of sources of nitrogen on heavy soil.
Location: Merredin Research Station.

Trial 89M2 (b)

Nitrification of sources of nitrogen on heavy soil.
Location: …

New Block Badgingarra Rs Late Time Of Seeding., J. W. Bowden, R. J. Lunt

Experimental Summaries - Plant Research

Trial 89BA33,

Location: Badgingarra

Based on a 1.5 t/ha potential yield, the strategic treatment was planned to be 120 kg urea/ha 4WAS. However, the crop was poorly established and so NH4NO3 was used in the hope of getting better tillering than would be possible with the slower release urea source. Gambling on equal dollars to urea for 2/3 N, but believe that twice as effective.

DAP was used to place nitrogen with the seed in case there was no rain of significance after seeding. This nitrogen (only 5 kg/ha) was probably lost with the rains of 20-28/7/89 (50 mm). Urea …

Glean Logan Comparisons, R Madrin, J Buckley

Experimental Summaries - Plant Research

Rates and timing of application, 89ME79, 89NO72, 89WH81, 89WH75. Hoegrass tankmixes, Brodal, Glean, 89M58. Grasp efficacy, rates and timing of application to wheat, 89NO71. Grasp tolerance, rates and timing of application to wheat, 89A17, and 89WH62. Silvergrass control in pasture. Simazine, Pursuit, 89KA67, 89LG60, 89NO73. Marshmallow control in crop, 89NO98. Glyphosate formulation comparisons, 89WH78, 89A27. Diclofop-methyl formulation comparisons, 89A28. Pursuit on pasture, rate and additives, 89LG61, 89LG60, 89LG58, 89A26. Selective grass controllers with Simazine on pasture 89M64, 89LG59. Cape tulip control in pasture, 89NA73, 89NA72.

Harvest Index Of Lupins, Direct Drilling On Sandplain Soils., Rob Delane, Carmel Schmidt, Glenn Adam

Experimental Summaries - Plant Research

Chemicals to improve pod setting in Lupins (Small plots), 89C23, 89GE74,

Chemicals to improve pod setting in Lupins (Large plots) 89GE72, 89GE75.

Getting The Best Out Of Our Wheats., B Shackley

Experimental Summaries - Plant Research

Getting the best out of our wheats, 89KA9, 89LG3, 89N4, 89LG4, 89N5, 89KA10, Time of sowing experiments. Factorial experiments.

Serradella Evaluations, L. Cransberg

Experimental Summaries - Plant Research

Trial 85AL56

Location: South Sterlings.

Serradella line evaluation - Stage 3.

To evaluate five promising lines selected from variety trials, in terms of herbage production and long term persistence.

Trial 88AL32

Location: Walpole.
Long season serradella evaluation.

To select productive and persistent serradella lines for the deep acidic sands in the very high rainfall zone on the south coast.

Trial 88AL31

Location: Takalarup.

Ryegrass species evaluation.

To investigate the potential of a range of ryegrasses, from short term to long term perennial, in the south coast environment.

Grass species evaluation

Location: Greenrange.

To identify both productive and persistent grasses for …

Effects Of Seed Phosphorus Concentrations And The Source Of The Seed On Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock

Experimental Summaries - Plant Research

Trial 89EC31

Location: East Chapman Research Station.

The effect of seed phosphorus concentration, source of seed and fertilizer P level on plant counts from six to 20 weeks.

Soil Acidity And Eastern Wheatbelt Plant Nutrition., W. Porter., C. L. Kipling

Experimental Summaries - Plant Research

1. Affects of soil acidity on subterranean clover growth in the cropping areas of Western Australia.

Trial 87AL35, 87NO2, 87No3, 88NO76, 88NO77, 88TS54

To investigate the responsiveness to lime of subterranean clover based pastures on acid soil and the cropping areas of Western Australia.
To determine the reasons for responses to line in the field, particularly the possible involvement of legume nodulation effects and the alleviation of soil/water repellence.
To develop practical identification and management strategies for acid soils problems.

Trial 87AL35.

Liming in crop/pasture rotation on acid soils

Location: Woogenellup.

History: 1987 Lime applied, sown to barley
1988 Clover …

Rhizoctonia Control In Potatoes And Potato Resistance To Powdery Scab., R M. Floyd

Experimental Summaries - Plant Research

Trials : 88BY26, 88PE34, 88MD35

Control of Rhizoctonia solani infection of potato stems and daughter tubers was demonstrated by preplanting applications of tolclofos-methyl (RIZOLEX TM) to either cut or round seed tubers. Yield of tubers from cut seed treated with Rizolex was increased over that of cut seed cured before planting bu not when seed was cut and planted the same day. Crops grown from round seed treated with Rizolex yielded higher than from untreated round seed.

Surface sterilization of seed tubers with Sodium hypochlorite was effective in reducing stem damage but not in reducing daughter tuber sclerotes. This indicates …

Increased Returns From Agronomic Inputs In Early Sown Cereal Crops, W K. Anderson

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

When crop variety and soeing dae are matched so that flowering occurs in the 'window' for a particular site, grain yields are increased and yield response to inputs such as nitrogen fertilizer and seeding rate is magnified.

This response occurs because the srop's potential for setting and filling grains is much improved by sowing at the optimum time. However varieties differ in their yield potential because they have different lenghts of growing season, which probably affects grain numbers, and because they have different inherent grain sizes. These differences affect the way varieties react to sowing date. Figure 1 shows how …

Early Sowing : One Key To Improved Yields Of Cereal Crops, M W. Perry, Wal Anderson, Rob Delane

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

Early sowing of cereal crops is one of the most important management practices through which Western Australian cereal growers can increase yields.

Researchers have long known that in theory early sowing should mean improved growth and water use efficiency - which both contribuite to increased yields. Application of this knowledge has had to await new tillage and herbicide technology, but recent research in the northan and central wheatbelt has now demonstrated the advantages of early sowing in practice. And more exciting yet, there is evidence that yield responses to weed control and applied fertilizers may also be greater in early …

Trees In The Peel-Harvey Catchment, C S. Peek, Richard Silberstein

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

The peel-Harvey catchment has been the focus for an intensive research and extension programme to reduce phosphorous run-off flowing into the Peel Inlet and Harvey Estuary, while maintaining agricultural productivity.

One of the proposed management strategies is to plant large areas of trees on the catchment's leaching sands. Farmers would be encouraged to take this option if growing trees was at least equal, in financial return, to the present agricultural land uses.

Preliminary data indicate that growing Eucalyptus globulas (Tasmanian bluegum) for woodchipping may be at least as profitable as agriculture. Tree plantations also have the added potential to reduce …

Trees For Windbreaks On Swan Coastal Plain Farms, Leon English, Ken Angell, Metropolitan District Office, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

Strong easterly and south-westerly winds are a feature of the Swan Coastal Plain and we receive frequent inquiries about which tree species are suitable for planting as windbreaks. When selecting trees for windbreaks you must match the species to the various soil types which occur along the Coastal Plain. The mature height of the tree is also an important consideration in good windbreak design. This Bulletin lists species which are suitable for windbreaks in descending order of mature height and indicates the soil type(s) on which they should be planted.

Grain Legume Adaptation To Soil Type, R French, M Greaves

Experimental Summaries - Plant Research

Grain legume adaptation to soil type, 89ME95, 89ME96, 89ME97, 89ME98, 89ME99, 89N36, 89N37. 89EB28, 89EB29, 89EB30, 89ME65. Lupin yield response to seed size and plant density, 89LG37, 89WH60, 89ME63, 89M2. Doublegee control in field peas with Bladex/MCPA, 89M31.

Cyanogenesis In The Euphorbiaceae, Lucinda L. Horton

Masters Theses

Fresh samples of nine species included in the family Euphorbiaceae, Acalypha qracilens, Acalypha ostryaefolia, Acalypha rhomboidea, Acalypha virginica, Chamaesyce maculata, Chamaesyce supina, Cnidoscolus stimulosus, Euphorbia corollata, and Poinsettia dentata, were tested for the production of cyanide using the Feigl-Anger technique. Two of these taxa were tested for polymorphism of cyanogenesis by repeated testing of the same individuals within a population. Two of these nine species, Acalypha ostryaefolia and Cnidoscolus stimulosis, gave positive results, although not every individual tested was positive. One of the species tested for polymorphism, Acalypha ostryaefolia, …

Tissue Culture In Rice (Oryza Sativa L. Subsp. Japonica Var. Lemont), Young M. Woo

Masters Theses

The purpose of this study was to obtain callus induction and subsequent plantlet regeneration from various explants of rice (Oryza sativa L. subsp. japonica var. Lemont). Callus induction occurred from the somatic cells of ovary wall, immature and mature embryos, immature endosperm, stem nodes, and seedlings. Plantlets were regenerated from embryo-, endosperm-, and stem node-derived calli on differentiation media. Stem nodes were the most responsive to callus induction. Requirements for optimal callus formation and plantlet regeneration differed from each culture. The study investigated the effects of cold treatment of explants, initial culture in darkness, media, and subculture for individual explant …

Texture, Climate And Cultivation Effects On Soil Organic Matter Content In U.S. Grassland Soils, Ingrid C. Burke

Ingrid Burke

Soil organic C content, a major source of system stability in agroecosystems, is controlled by many factors that have complex interactions.The purpose of this study was to evaluate the major controls over soil organic carbon content, and to predict regional patterns of carbon in range and cultivated soils. We obtained pedon and climate data for 500 rangeland and 300 cultivated soils in the U.S. Central Plains Grasslands, and statistically analyzed relationships between C and soil texture and climate. Regression models of the regional soils database indicated that organic C increased with precipitation and clay content, and decreased with temperature. Analysis …