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Articles 37381 - 37410 of 39785
Full-Text Articles in Physical Sciences and Mathematics
Disease Rating System., M Sweetingham
Disease Rating System., M Sweetingham
Experimental Summaries - Plant Research
Lupin hypocotyl rot trials, 85BA29, 85BA30, 85BA31, 85N054. Lupin root rot trials, 85WH31, 85WH32, 85WH52. Lupin root disease survey - Moora District. Common Root Rot studies, 82M26.
Weed Seed Ecology., A. H. Cheam
Weed Seed Ecology., A. H. Cheam
Experimental Summaries - Plant Research
Emergence of weed seedlings from different soil depths. 82MT49, Mt Barker Research Station. 83MT4, Mt Barker Research Station. 82NR12, Northam Research Station. 83NR2, Northam Research Station. 82C37, Chapman Research Station. 83C3, Chapman Research Station. Longevity of buried weed seeds. 82MT50, Mt Barker Research Station. 83MT5, Mt Barker Research Station. 82NR13, Northam Research Station. 83NR3, Northam Research Station. 82C38, Chapman Research Station. 83C4, Chapman Research Station. Emergence of weed seedlings in relation to soil type and cultivation. 82PE32, South Perth. Emergence and fate of weed seeds in different depths of cultivated and undisturbed compacted soil. 84C49, Chapman Research Station. 84MT62, Mt …
The Ecology Of Skeleton Weed In Western Australia, Afghan Thistle Ecology, Reproductive Biology Of Gorteria Personata., J. Dodd
Experimental Summaries - Plant Research
1. The ecology of skeleton weed (Chondrilla juncea L.) in Western Australia. Seed production and water use in the glasshouse, 84PE18. Seed production and water use by field-grown skeleton weed, 84BA17, 84BA18. Seedling root growth 85PE54 2. Afghan thistle (Solanum hoplpetalm) ecology Winter rosette survival 84N050. Regenerative ability of S. hoplopetalum, 85PE51. 3. Reproductive biology of Gorteria personata. Gorteria personata Floral biology Seed content of burrs
Capeweed, Radish, Wild Oats, Sarsaparilla, Four O'Clock, Saffron Thistle, Onion Weed, Carnation Weed, J. R. Peirce, B J. Raynor
Capeweed, Radish, Wild Oats, Sarsaparilla, Four O'Clock, Saffron Thistle, Onion Weed, Carnation Weed, J. R. Peirce, B J. Raynor
Experimental Summaries - Plant Research
85WH59, Capeweed time of spraying. Demonstration, capeweed, oil additions. 85N080, radish, nozzle angles x volumes. 85N081, radish, nozzle angles x rates. 85N082, wild oats, nozzle angles x volumes. 85N083, wild oats, nozzle angles x Rates. 85ME1, sarsaparilla, chemicals. 85N075, sarsaparilla, chemicals. 85TS26, 85ME48, 85ME104, 85GE29, saffron thistle, control with ear spraying in pasture. 85TS41, 85GE29a, saffron thistle, chemical control of seed set, 85TS27, saffron thistle, grazing trial. 85GE36, onion weed, chemicals in pasture. 85GE35, carnation weed, chemicals in pasture.
Efficiency Of Cinch On Brome Grass Control., J. E. Holmes., R L. Thomas
Efficiency Of Cinch On Brome Grass Control., J. E. Holmes., R L. Thomas
Experimental Summaries - Plant Research
85GE34, 85A11, 85A12,
Cereal Weed Control, Cereal Disease, Roundup Effects On Wheat & Barley, Noxious Weed Control., J. H. Moore, E. B. Hoskins, G. Dean
Cereal Weed Control, Cereal Disease, Roundup Effects On Wheat & Barley, Noxious Weed Control., J. H. Moore, E. B. Hoskins, G. Dean
Experimental Summaries - Plant Research
Pre-seeding Grass Control, 85AL41. Sorrel control with Ally, 85AL39. Capeweed control pre-seeding, 85AL40. Effect of PP 450 on wheat diseases, 83AL36. Roundup effects on wheat and barley, 85AL64. History effects on wheat responses, 85AL42. Garlon 480 time of spraying on blackberry. Blackberry herbicide (high volume) demonstrations and observations. Blackberry herbicide (low volume) demo sites. Comparison of sprayers and spray volume for blackberry control. Blackberry herbicides screening. Krenite on blackberry, 76 AL 8. Methods of Krenite application for blackberry Control. Blackberry Wettability. Ropewick applied 2,4-D Amine for Arum Lily control. Arum lily herbicide screening. Herbicide screening for Arum lily control. Herbicide …
The Ecology Of Skeleton Weed (Chondrilla Juncea) In Western Australia, Demographic Aspects Of Wild Radish (Raphanus Raphanistrum) Populations In Lupin Crops And Identification Of Populations Of Mesquite (Prosopis Spp) From The West Pilbara Region., F. D. Panetta
Experimental Summaries - Plant Research
To determine what forms of skeleton weed are present in Western Australia and to map their respective distribution. To determine, on the basis of climatic characteristics, the suitability of various areas within the Western Australian wheatbelt for infestation by skeleton weed. To determine the amounts, viability and dormancy status of seeds produced by field-grown plants during summer and autumn months. To determine the effectiveness of conventional tillage practices in limiting establishment of skeleton weed seedlings. To determine the regularity with which seedling establishment occurs under field conditions and how the probability of establishment is affected by the time of germination. …
Serradella Trial Programme., L. Cransberg
Serradella Trial Programme., L. Cransberg
Experimental Summaries - Plant Research
Serradella Line Evaluation - Stage 2 85A155, Serradella Line Evaluation - Stage 3 85A156, Serradella Establishment - Time of Seeding x Seeding Rate 85A157, Serradella Establishment - Pod Undersowing (Variety x Rate) 85A158, Serradella Establishment - Pod Undersowing (Inoculation) 85A159.
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Farm Systems Research Involving New Pasture Species., C. W. Thorn, C. K. Revell
Experimental Summaries - Plant Research
The effect of grazing on Circle Valley medic production. Effect of rotations on M. polyrnorpha production and persistence and cereal crop yields, 84 KA 35, 85 LG 44, 84 KA 37 Effect of tillage x gypsum x nitrogen on continuous cereal production, 84 KA 28. Effect of gypsum x seeding rate on the seed yield of three pasture legumes. Pasture species tolerance to grass and broadleaf herbicides. Undersowing cereal crops with burr medic.
Phosphorus Nutrition., M. D. Bolland, M. J. Baker, C. H. Phillips
Phosphorus Nutrition., M. D. Bolland, M. J. Baker, C. H. Phillips
Experimental Summaries - Plant Research
Trials reported on: 85 NA 34, 85 NA 35, 85 NO 63, 85 BA 34, 85 BA 36, 85 BA 37, 76 WH 9, 84 E 31, 84 M 63, 84 NO 69, 77 MT 2, 78 BA 7, 65 A 1, 69 WH 15.
Long Term Rotation Trials, Lupins: Wheat Rotation., I. Rowland, W. Hawkins
Long Term Rotation Trials, Lupins: Wheat Rotation., I. Rowland, W. Hawkins
Experimental Summaries - Plant Research
Long term rotation trials 66M29, 67C13, 67N4, 68E5, 65SG5, 73SG16, Lupins : wheat rotation 80TS3, 82TS2, 82M26.
Soil Acidity In The Eastern Wheatbelt., W. Porter, S. Carr, P. Bourne
Soil Acidity In The Eastern Wheatbelt., W. Porter, S. Carr, P. Bourne
Experimental Summaries - Plant Research
Effect of profile acidity on nutrient and water use by wheat, 85M48. Effect of liming a wodjil soil prile on lupin production, 82ME10 and 82M5 . Lime banding in acid subsoils for wheat, 81M54. Liming topsoil. Rates of lime on wheat, 80M30. Residual value of lime (lupins 1985) 80M31. Survey Survey of extremely poor eastern wheatbelt yellow earth soils, 85ME92
Summary Of Rhizobium Experiments., J G. Howieson
Summary Of Rhizobium Experiments., J G. Howieson
Experimental Summaries - Plant Research
The screening of 33 isolates of R. meliloti collected in Sardinia in 1984, and isolated on a low pH medium, 84ME33. Assessment of the possibility of establishing an 'Index of Symbiotic Competence' for species of Medicago, 85M57. Assessment of the effectiveness of several strains of R. meliloti on M.littoralis, and their saprophytic competence in an acid soil, 84ME35. The screening of the pre-1984 collection of R.meliloti held at the W.A. Department of Agriculture for acid tolerance, 84M34. Assessment of the survival of the Serena WSM419 symbiosis on a range of soil types, 84ME32, 84WH24, 84N18. Assessment of the acid tolerance …
Pasture Manipulation And Root Diseases Of Cereals., W Macleod
Pasture Manipulation And Root Diseases Of Cereals., W Macleod
Experimental Summaries - Plant Research
Rotation for wheat comparing pure clover ley with a pasture ley, 79E15. Pasture renovation techniques and crop production in a 1:2 rotation, 81E35. Pasture manipulation effects on take-all, 85E32
Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases., R. F. Brennan
Studies On The Effects Of Nutrition And Tillage Systems On Cereal Root Diseases., R. F. Brennan
Experimental Summaries - Plant Research
Micronutrients (Cu, Zn) and take-all, 83ES39, 83ES40. Nitrogen and Phosphorus rates and take-all, 83ES41, 83ES42, 83ES43. Split applications of Nitrogen and take-all, 84N1. Take-all and Manganese/Ammonium interaction, 84E1. Split applications of Nitrogen and take-all, 84E2. Cu residual on wheat and take-all, 67E9, 67E8. Take-all and Manganese/Ammonium interaction, 84LG2. Cultivation depths and timing effects on Rhizoctonia, 84E24. Chemical fallow and cultivation effects on Rhizoctonia, 85E33. Effects of cultivation depths and machines on Rhizoctonia and yield, 85E29.
Root And Foliar Diseases Of Wheat On Sandplain In The Geraldton Region., J. Wilson
Root And Foliar Diseases Of Wheat On Sandplain In The Geraldton Region., J. Wilson
Experimental Summaries - Plant Research
A project funded by Wheat Industry Research Council and Wheat Industry Research Committee of W.A. Interactions between stubble, rotation, ripping and nitrogen, ECRS, 85C53. The effect of type of cultivation implement, and time of cultivation, ECRS, 85C54. The effect of fumigation, ECRS, 85C91. Residual ripping responses from 1984, 84C15.
Long Term Minimum Tillage Investigations, Stubble Management Techniques, Deep Ripping And Seeding Machine Comparisons., R. J. Jarvis, L. G. Butcher, L. D.J. Smith
Long Term Minimum Tillage Investigations, Stubble Management Techniques, Deep Ripping And Seeding Machine Comparisons., R. J. Jarvis, L. G. Butcher, L. D.J. Smith
Experimental Summaries - Plant Research
77 A 16, red/brown sandy loam. 77 WH 17, yellow clayey-sand (Wongan loamy sand). 77 M 13, red sandy clay loam (salmon gum, gimlet). 78 M 25, Yellow acid loamy sand (Wodgil). 77 Mt 15 Gravelly loamy sand/sandy loam - forest soil 77 E 18, fine white sand over fine sandy clay. 77 A 43, Brown loamy sand/sandy loam - Jam country.77 WH 88, Grey loamy sand over gravel at 50 cm - Elphin soil series – Mallee. 77 M 56, Red sandy clay loam - Salmon Gum, Gimlet. 82 M 35, Loamy sand/sandy loam – Mallee. 77 E 52, …
Experimental Summaries Various Trials 1985, R Madin, F Schoonens, A Lindsay
Experimental Summaries Various Trials 1985, R Madin, F Schoonens, A Lindsay
Experimental Summaries - Plant Research
85WH55, 85M55. The effect of timing of Roundup and spray.
85NO87, Evaluation of herbicides for control of lupins in cereals.
85NO89, Control of self sown lupins in cereal crops.
85NA59, Grass controI in barley with Isoproturon, Cinch and Metribuzin.
85NO88, Control of wild oats with hoegrass and oil.
85NO86, Tolerance of wheat to hoegrass and oil.
85NO84, Tolerance of lupins to Fusilade plus oil.
85NA63, Ryegrass control in crop with hoegrass plus crop oil.
85A15, Rates of Fusilade for seed set control in grasses.
85A17, Pasture topping herbicides and oils (Silvergrass).
85WH64, Crop oil additives to seed set control herbicides. …
Weed Seed Ecology, A H. Cheam
Weed Seed Ecology, A H. Cheam
Experimental Summaries - Plant Research
Emergence of weed seedlings from different soil depths. 82MT49, Mt Barker Research Station. 83MT4, Mt Barker Research Station. 82NR12, Northam Research Station. 83NR2, Northam Research Station. 82C37, Chapman Research Station. 83C3, Chapman Research Station. Longevity of buried weed seeds. 82MT50, Mt Barker Research Station. 83MT5, Mt Barker Research Station. 82NR13, Northam Research Station. 83NR3, Northam Research Station. 82C38, Chapman Research Station. 83C4, Chapman Research Station. Emergence of weed seedlings in relation to soil type and cultivation. 82PE32, South Perth. Emergence and fate of weed seeds in different depths of cultivated and undisturbed compacted soil. 84C49, Chapman Research Station. 84MT62, Mt …
Laser Levelling Land For Flood Irrigation, M D. Green, J. P. Middlemas
Laser Levelling Land For Flood Irrigation, M D. Green, J. P. Middlemas
Journal of the Department of Agriculture, Western Australia, Series 4
Since the introduction of laser levelling to Western Australia's South-West irrigation area five years ago, many farmers have benefited from this new and precise method of land-forming.
The use of lasser controlled earthmoving equipment to redevelop irrigated paddocks has led to improved irrigation efficiency and drainage. Less water is used for each irrigation, water is applied more evenly and less labour is needed. many older, grass-dominated paddocks have been reseeded to improve pasture species.
Eradicating Fruit Fly From Carnarvon, Kingsley Thomas Fisher
Eradicating Fruit Fly From Carnarvon, Kingsley Thomas Fisher
Journal of the Department of Agriculture, Western Australia, Series 4
Late last year the Mediteranean fruit fly (Ceratitis capitata Weidemann) was eradicated from Canarvon, Western Australia by using an intergrated programme of sterile insect releases and bait spraying.
The eradication marked the end of a four-year study on the use and effectiveness of the Sterile Insect Technique, a biological control technique which uses an insect pest against itself. such a study can be used as a basis for treating other threatening insect pests, such as the serious cattle pest screw-worm fly, should they be found in Asustralia.
Being a biological control method, the Sterile Insect Technique is an exellent …
Water Quality For Irrigation, P R. George
Water Quality For Irrigation, P R. George
Journal of the Department of Agriculture, Western Australia, Series 4
Although irrigation and salinity problems are frequently inseperable, there is a range of management methods that can be used to handle marginal quality water. Freuently these methods are simple, but require careful planning.
The wide range in tolerance of crops to salinity can be exploiter to ensure that appropriate crops are selected for the water available.
Because crops vary in their sensitivity to salt uptake in the leaves or the roots, watering methods can be changed to avoid problems. For profitable production enough water should be applied to ensure adequate water is available for plant growth as well as to …
Residual Values Of Australian Rock Phosphates, Michael D A Bolland
Residual Values Of Australian Rock Phosphates, Michael D A Bolland
Journal of the Department of Agriculture, Western Australia, Series 4
For years superphosphate has been the cheapest, convenient and most effective way of supplying phosphorus to newly cleared soils in Western Australia's South-West that are acutely deficient in phosphorus. However its effectiveness as a phosphorus source falls markedly after application. Regular applications are needed to maintaine profitable pastures and crops on these soils.
After a big jump in supperphosphate prices in the mid 970s, researchers tested the use of Australian rock phosphates as potentially cheaper alternative phosphorus fertilisers to superphosphate. On the none-leaching sands, as this article shows, none of the rock phosphates was as effective for plant growth as …
The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith
The Effect Of Dispersed Oil On The Calcification Rate Of The Reef-Building Coral Diploria Strigosa, Richard E. Dodge, A. H. Knap, Sheila C. Wyers, H. R. Frith, T. D. Sleeter, S. R. Smith
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
Hermatypic corals represent environmentally and economically important components of the reef ecosystem. Oil spills and clean-up operations in reef areas are potential sources of pollution impact. This paper presents an evaluation of the calcification rate of specimens of the reef-building coral Diploria strigosa in response to 24 hour treatments of chemically dispersed oil at concentrations of 20 ppm. The concentrations and durations were chosen to represent a scenario of a short-term oil spill treated with dispersant passing over a coral reef.
Calcification rates were determined by the buoyant weight technique at several day intervals for up to 29 days following …
The Quaternary Bone Caves And Associated Sites At Wallingford, Jamaica, Donald A. Mcfarlane, R. E. Gledhill
The Quaternary Bone Caves And Associated Sites At Wallingford, Jamaica, Donald A. Mcfarlane, R. E. Gledhill
WM Keck Science Faculty Papers
A group of caves associated with the sink of the One Eye River in St. Elizabeth Parish, Jamaica, have been the subject of numerous important palaeontological investigations beginning 1919. Unfortunately, considerable confusion has arisen in the literature through inadequate documentation of different sites. The caves of the immediate area are described and located, and their palaeontological significance is summarised in the light of recent taxonomic review and relevant geochronological evidence.
Santa Clara Magazine, Volume 27 Number 3, Winter 1985, Santa Clara University
Santa Clara Magazine, Volume 27 Number 3, Winter 1985, Santa Clara University
Santa Clara Magazine
2 - WHEN ARE LEADERS AT THEIR BEST? By James M. Kouzes and Barry Z. Posner. There is a revolution in leadership style taking place in corporate America. This deals with how ordinary people get extraordinary things done in organizations.
7 - A MEDITATION IN ST. IVES By William J. Rewak, S.J. Some reflections on the essence of work taken from Father Rewak's travel diary during a trip to England last summer.
10 - TAKING LAUGHTER SERIOUSLY By John Morreall. A philosophy professor shows how important humor is to human life and how understanding our laughter can help us understand …
Rainfall And Beach Erosion Relationships, Stanwell Park, Australia, 1895-1980: Worldwide Implications For Coastal Erosion, Edward A. Bryant
Rainfall And Beach Erosion Relationships, Stanwell Park, Australia, 1895-1980: Worldwide Implications For Coastal Erosion, Edward A. Bryant
Faculty of Science - Papers (Archive)
Beach erosion is often associated with sea-level rise, sediment depletion or variation in wave conditions; however above-normal rainfall can cause beach retreat by increasing water-table elevation on the foreshore. On Stanwell Park beach, New South Wales, Australia annual rainfall accounts for 12.4% of the variance in the long-term, high-ride position measured accurately to ±2.5 m for the whole beach using 135 oblique photographs dated between 1895-1980. Sea-level changes account for an additional 4.6%. A 100 mm increase in annual rainfall or a 1 cm rise in sea-level results in 0.79 or 0.44 m retreat respectively of the average high-tide position …
Perioculodes Cerasinus, N. Sp., The First Record Of The Genus From The Caribbean Sea (Amphipoda: Oedicerotidae), James Darwin Thomas, J. L. Barnard
Perioculodes Cerasinus, N. Sp., The First Record Of The Genus From The Caribbean Sea (Amphipoda: Oedicerotidae), James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
Perioculodes cerasinus, a probable cryptic fossorial amphipod with embedded white orbicular ommatidia in bright ruby eyes is described from Tobago, Belize, Florida Keys, and Biscayne Bay, Florida. The eyes are separated either into two lunes or combined side to side into one large irregular brow. This is the first western Atlantic record of a generic group heretofore confined to the warm eastern Atlantic and Indian Oceans. Close affinity appears to be with the type-species of the genus, P. longimanus, from the eastern Atlantic Ocean.
Two New Species Of Two New Gammaridan Genera (Crustacea: Amphipoda) From The Florida Keys, James Darwin Thomas, J. L. Barnard
Two New Species Of Two New Gammaridan Genera (Crustacea: Amphipoda) From The Florida Keys, James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
Two new species of the new genera Anamaera (A. hixom) and Spathiopus (S looensis), both belonging to the section Gammarida of Amphipoda, are described from the Florida Keys. Anamaera is a new genus close to Maera, Ceradocus, and Ceradomaera, but has an unique combination of minor character expressions. Males of Spathiopus have an unusual paddle-shaped antenna 2 but otherwise Spathiopus appears to be an apomorph of Elasmopus.
A New Marine Genus Of The Maera Group (Crustacea: Amphipoda) From Belize, James Darwin Thomas, J. L. Barnard
A New Marine Genus Of The Maera Group (Crustacea: Amphipoda) From Belize, James Darwin Thomas, J. L. Barnard
Marine & Environmental Sciences Faculty Articles
A new genus and species, Dumosus atari of the Maera group from coral rubble at Belize is described. It is related to Gammarella and is probably cryptic. The eyes are reduced. Dumosus differs from Gammarella in the loss of medial setation on the maxillae, reduction of article 3 on the mandibular palp, loss of article 2 on the outer ramus ofuropod 3, and in the loss of major spination on the plates of maxilla I and the maxilliped; in contrast to Gammarella, Dumosus retains the plesiomorphic uropod 3 typical of the Maera-group.