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Articles 181 - 210 of 234
Full-Text Articles in Life Sciences
Barley Agronomy Experiments., K. L. Young
Barley Agronomy Experiments., K. L. Young
Experimental Summaries - Plant Research
Trial 89E1, 89SG1, 89MT3
Barley variety x time of sowing trials.
Location: Esperance Downs Research Station, Salmon Gums Research Station, Mt Barker Research Station
To determine the optimum time of ear emergence for barley varieties which vary in maturity.
Trial 89ES2
Location: Melijinup Field Station
Barley variety x time of sowing trials
1. Assess the effect of aphids on the yield of barley at a range of sowing times.
2. Determine the optimum time of ear emergence for barley varieties which vary in maturity.
Trial 89E6
The effect of aphids on the yield of barley
Location: Esperance Downs Research Station. …
Centipedes, Reed S. Roberts
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Nitrogenous Fertilisers For Cereals In Different Rotations. Results From 1989 Trials., I. Rowland, M. G. Mason
Experimental Summaries - Plant Research
Trial 78BA1
Nitrogen fertiliser requirement in alternate crop - pasture rotation.
Location: Badgingarra Research Station.
Trial 88B4
Effect of amount and quality of organic matter residues on response to N.
Location: Badgingarra Research Station.
Trial 86WH36, 86M44
Lupin/wheat rotation.
Location: Wongan Hills Research Station, Carrabin Research Station.
Trail 87N084, 86M39, 86ME64, 87N25, 87KA49
Pea/wheat rotation.
Location: Konnongorring, Merredin Research Station, Narembeen, Newdegate Research Station, Nyabing,
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Phosphate Nutrition Of Burr Medic And Yellow Serradella., Blakely Paynter
Experimental Summaries - Plant Research
Trial 89ME50, 89ME51, 89ME53, 88ME55, 89ME56
Location: Mutadgin, Doodlakine, Noongar, Mt Hampton, Nungarin
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Trial 89ME52, 89ME54
Location: Noongar, Mt. Hampton.
Compare the response of burr medic to topdressed P with the response of wheat to drilled P.
Measure the response of burr medic pasture to applied potash.
Trial 89ME59
Location: Beacon
Compare the response of yellow serradella to topdressed P with the response of wheat to drilled P.
Trial 89ME60, 89ME61
Location: Muntadgin
Compare the response of yellow serradella to topdressed P with …
Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial: 89BA29
Location: Badgingarra Research Station, Paddock 4A2, old block.
Lupin cv. Gungurru sieved to uniform size and sown without inoculation. No basal fertilizers were applied as the soil had previously been treated with high rates of superphosphate, micro-nutrients and potassium. Muriate of potash topdressed on 18/8/89 at 100 kg/ha.
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Influence Of Soil Acidity On Cereals And Acidification Rates., P. J. Dolling
Experimental Summaries - Plant Research
Soil acidity and the availability of nitrogen to cereals.
To determine the extra nitrogen available due to better pasture legume growth after liming.
To determine the extra nitrogen released from soil organic matter after liming.
Trial 89NO81
Location: South Cunderdin.
Trial 89NO82
Location: Cunderdin
Trial 89NO83
Location: Konnongorring.
Trial 89NO84
Location: Jennacubbine.
Trial 88AL35
Location: Woogenellup.
Trial 88TS54
Location: Three Springs.
Trial 88NO76
Location: Goomalling.
Trial 88NO77
Location: Ejanding.
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Trace Element Nutrition. Tissue Testing Programme 1989. Residual Value. Manganese Nutrition Of Lupins., R. F. Brennan
Experimental Summaries - Plant Research
Evaluation of existing diagnostic procedures for the recommendation of trace element fertilizers.
To compare the accuracy and reliability of a range of tissue and soil tests being variously promoted for use to farmers for the diagnosis and prognosis of zinc and copper deficiencies in wheat crops on Western Australian farms.
Trial 66N14
Long term copper residual trial at the Newdegate Research Station.
To determine the residual value of previously applied copper.
Location: Newdegate Research Station.
Trial 86N27
Residual value of zinc with high analysis nitrogen and phosphorus fertilizer.
To determine the decline in effectiveness of zinc on this soil types …
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat (And Nitrogen Sources Rates And Times On Wheat), J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89MO49
Location: Tenderloin, Brand Highway, Regan's Ford.
History:
1987 Aroona wheat with 70 kg DAP and 3 kg CuSO4 at seeding followed by 60 urea at 3WAS and another 40 urea at 6WAS. Yield was about 1.7 to 1.8 t/ha;
1988 Gungurru lupins with 120 kg super and manganese/ha yielded 1.9 t/ha. 350-400 ml Roundup/ha and one cultivation prior to seeding.
Interaction Of Season With Wheat Response To Nitrogen Fertilizer., J. W. Bowden, R. J. Lunt
Interaction Of Season With Wheat Response To Nitrogen Fertilizer., J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 89M3
Interaction of season with wheat response to nitrogen fertilizer.
Location: Merredin Research Station.
History: 1988 pasture.
Sown on 30/5/89. Gutha Wheat at 50 kg/ha Madiera Serradella at 15 kg/ha. Basal superphosphate at 200 kg/ha plus Molybdenum drilled with the seed and 100 kg/ha Muriate of Potash topdressed. At seeding (A.S) nitrogen treatments topdressed by hand on 1/6/89 and 4 weeks after (4WAS) treatments applied on 29/6/89. Supplementary water applied.
Trial 89NA61
Pasture deterioration trial.
Location: West Dale
History: Long term pasture dominated by non-productive 'suffocating clover'.
Trial 88NA88
Effect of clover growth on nitrogen for following cereals.
Location: …
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Tactical Nitrogen Decisions For Wheat, J. W. Bowden, R. J. Lunt
Experimental Summaries - Plant Research
Trial 88MO41, 88WH40 (2CE), 88WH40 (4W), 89NO77, 89MO47, 89MO47, 89MO49, 89BA33 (1), 89BA33 (2), 89WH70 (1), 89WH70 (2)
Locations: Wannamal, WHRS, Grass Valley, Regan's Ford, Badg. New Block 3CE
In order to test tactical and other fertilizer decision making methods (Table 1), we carried out three trials in 1988 and a further seven trials in 1989 (Table 2).
To date this programme has provided a lot of information which can be used to test and validate current (and future) methods of predicting yield potential and nitrogen status of a crop as the season progresses. However, our inability to predict end …
Pasture Species Evaluation On Acid Wodjil Soil - Machine Sown Plots., Bradley Nutt
Pasture Species Evaluation On Acid Wodjil Soil - Machine Sown Plots., Bradley Nutt
Experimental Summaries - Plant Research
Trial 89TS38
Location: East Latham
The very low seed yields are a reflection of the dry winter conditions experienced in 1989. The Rose (T. hirtum) and Cupped (T. cherli) clovers appear to be a more promising option for this difficult soil type compared to other species. Paros yellow serradella performed well considering the trial site is located in a very dry area. The burr medics would not be an option on these acidic soil types because of nodulation failure; which should become evident in the regenerating swards.
Seed Phosphorus In Cereals And Lupins., R W. Bell
Seed Phosphorus In Cereals And Lupins., R W. Bell
Experimental Summaries - Plant Research
Experiment 89SC21, effect of seed origin and seed phosphorus on growth of wheat.
Experiment 89SC23, effect of seed phosphorus, seed size and seeding density on the growth of wheat at two soil P levels.
Experiment 89GL32, effect of solution P supply on the early growth and nodulation of lupins grown from seed with three levels of P.
Experiment 89GL33, effect of soil P supply on the early growth and nodulation of lupins.
Experiment 89SC20, effect of seed origin and seed phosphorus on growth of lupins.
Barley Screening Techniques, Georgette Elliot
Barley Screening Techniques, Georgette Elliot
Experimental Summaries - Plant Research
Early vigour, use of remote sensing to estimate crop characteristics. - Previous associated trials:
1987 BZEGV,1987 Chapman, Eat Chapman, Merredin, Mt Barker
1988 BYEVS Esperance, Mt Barker
BYEVN Wongan Hills, Badgingarra
Measurement of spectral reflectance and analysis of data.
Barley nitrogen utilization efficiency trial, BYNIT. 1989
3WB, 1A Wongan Hills, Badgingarra
Long Season Wheat Production On The South Coast Of Western Australia., W R. Smith, A P. Webster
Long Season Wheat Production On The South Coast Of Western Australia., W R. Smith, A P. Webster
Experimental Summaries - Plant Research
Fungicide, time of sowing, wheat variety. Time of sowing, wheat variety, 89AL3, 89ES3, 89JE1, 89KO3. Wheat phenology, 89E5, 89MT8. Aphid control, time of sowing, wheat variety, 89E3, 89MT5.
Woody-Plant Succession In An Eastern Nebraska Bluff Forest, Douglas E. Borland, Thomas B. Bragg, David M. Sutherland
Woody-Plant Succession In An Eastern Nebraska Bluff Forest, Douglas E. Borland, Thomas B. Bragg, David M. Sutherland
Biology Faculty Publications
Woody plant composition of ridgetop old-fields abandoned at various times since 1800 suggest a successional pattern for an eastern Nebraska bluff forest. Sites abandoned for 24 years were dominated by elm (Ulmus spp.) and rough-leaved dogwood (Comus drummondii). Other sites, abandoned for76 years, were dominated by bitternut hickory (Cwya cordijormis), American linden (Tilia americana), and hop-hombeam (Ostrya virginiana), and those abandoned for 186 years were predominantly bur oak (Quercus macrocarpa) and hop-hornbeam. Based on species importance values, we conclude that the composition of this forest is still changing.
Cyanogenesis In The Euphorbiaceae, Lucinda L. Horton
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
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 …
Potassium Nutrition Of Pastures On The Sandplain Soils Of Western Australia., Noeleen Edwards, M. Thomas
Potassium Nutrition Of Pastures On The Sandplain Soils Of Western Australia., Noeleen Edwards, M. Thomas
Experimental Summaries - Plant Research
Project: Potassium nutrition of pastures on the sandplain soils of Western Australia.
Determine the factors affecting the fate of native and applied potassium on sandplain soils.
Define current and residual response curve parameters for potassium applications. Develop recommendations for the economic management of soil potassium levels.
Trial 88B46, 88TS69, 89KO26
Maintenance application rates of potassium on sandplain soils.
Location: Badgingarra Research Station, new block, North Eneabba, Kojaneerup Research Block.
Trial 89BA24
Residual value of potassium on sandplain soils.
Location: Badgingarra Research Station
Trial 89MT46,
Potassium requirements of sub clover.
Location: Mt Barker Research Station.
Project: Potassium nutrition of lupins on …
Crop Establishment Strategies, Dpird
Crop Establishment Strategies, Dpird
Experimental Summaries - Plant Research
Cereals, dry seeding, sowing at the break of the season, sowing three weeks after the break of the season, 89EB14. Pastures, cape tulip control, 88No114. Four o’clock control, 89Ka79. Glaucus thistle, 89Ka87. Matricaria control, 89ME48. Mexican poppy control, 89No97. Saffron thistle control, 89TS65, 89TS66. Saffron thistle demonstration, Geraldton.
The Nitrogen Response Of Wheat Crops Following Lupins, I C. Rowland, Mel Mason, John Hamblin
The Nitrogen Response Of Wheat Crops Following Lupins, I C. Rowland, Mel Mason, John Hamblin
Journal of the Department of Agriculture, Western Australia, Series 4
One of the many benefitsof growing narrow-leaved lupins in a crop rotation (Rowland et al 1988) in the increased yield of the following cereal crop as a result of the improved nitrogen level of the soil.
This article reports the results from 41 wheat/lupin rotation trials involving a range of nitrogen rates throughout the Western Australian agricultural area between 1978 and 1987. These trials allowed scientists to assess the interaction of nitrogen fertilization with previous cropping history and to estimate some of the contribution of the nitrogen and other effects of lupins within the crop rotations. The results provide some …
Frost Injury To Wheat, S P. Loss
Frost Injury To Wheat, S P. Loss
Journal of the Department of Agriculture, Western Australia, Series 4
Frost injury has not been a major concern to the Western Australian wheat industry despite causing spectacular but irregular crop losses on some farms.
The development of suitable herbicides, direct drilling technology and the adoption of early flowering varieties in the late 1970s and early 1980s led to wheat crops being sown and flowering earlier than previously. This resulted in an increase in the incidence of frost damage.
Research into frost indicates that most wheat producers face low to moderate risks of yield loss caused by frost. However, individual farms in particular years can suffer devestating widespread losses. Grost injury …
Flower : Predicting Flowering Times Of Cereal Crops, G A B Elliott, Stephen Loss
Flower : Predicting Flowering Times Of Cereal Crops, G A B Elliott, Stephen Loss
Journal of the Department of Agriculture, Western Australia, Series 4
FLOWER is a computer program which predicts the flowering date of a given wheat or barley variety at a specified location and sowing date. Department of Agriculture agronomists, breeders and advisers are using the program to provide useful information on how the development of cereals responds to different environments across Western Australia's cereal growing areas.
An Annotated List Of The Vascular Plants Of Keith County, Nebraska, David M. Sutherland, Steven B. Rolfsmeier
An Annotated List Of The Vascular Plants Of Keith County, Nebraska, David M. Sutherland, Steven B. Rolfsmeier
Biology Faculty Publications
This study provides an annotated list of the vascular plants known to exist outside of cultivation in Keith County, Nebraska. Listed are a total of 599 species, subspecies and varieties belonging to 302 genera of 87 families. Notes are included about frequency and habitat for each of the taxa. 264 (44.1 %) of the taxa listed were previously unreported for Keith County. Additionally, the paper discusses vegetation regions in the county and gives information in tabular form about numbers of the flora in different taxa, the ten largest families, numbers of taxa of different growth habits, and numbers of taxa …
Water Erosion On Vegetable Growing Land In South Western Australia, D J. Mcfarlane, N D. Delroy, H V. Gratte, J P. Middlemas, A M E Van Vreeswyk, I Mckissock
Water Erosion On Vegetable Growing Land In South Western Australia, D J. Mcfarlane, N D. Delroy, H V. Gratte, J P. Middlemas, A M E Van Vreeswyk, I Mckissock
Resource management technical reports
The most serious erosion was found to be occurring in the Donnybrook area due to a combination of erosive winter rainfall, steep slopes and erodible soils. The most serious erosion was found to occur when storm runoff entered the vegetable plots from above, providing a transporting medium for the cultivated soil. A predictive model of erosion showed that soil texture, furrow slope, plot length, rainfall erosivity and canopy cover were significant factors affecting soil loss.
East Ballidu Catchment Report, L K. Lenane, C Henschke, C Thorne, D Kessell
East Ballidu Catchment Report, L K. Lenane, C Henschke, C Thorne, D Kessell
All other publications
It will require the total cooperation of all members of the Soil Conservation District to remedy the area's problems. The first priority is for the control and better use of water on the recharge areas. The wheat/wheat/lupin rotation at present offers the best economic option. Lupins are well suited to the areas of lighter land. If lupins are planted on waterlogged soils or otherwise unsuitable soils, problems will arise and perhaps prejudice their use on the widespread suitable areas. The use of trees below rocky outcrops is an important measure to prevent excessive recharge of the deeper aquifers. Where trees …
Examination And Development Of An Essential Oil Industry In The Ord River Irrigation Area Of North Western Australia, Jean M.V. Bonnardeaux
Examination And Development Of An Essential Oil Industry In The Ord River Irrigation Area Of North Western Australia, Jean M.V. Bonnardeaux
Research Reports
The project aimed at establishing an essential oil industry in the Ord River Irrigation Area (ORIA). This industry is particularly suited to the ORIA where transport costs often prohibit the development of some agricultural products. The oils are concentrated and highly valuable. In addition, the ORIA with its abundant water and high temperatures presents a unique opportunity to grow a wide range of crops for the production of essential oils used by the food, medicinal and perfume industries. Australia has therefore an opportunity to initiate a new industry capable of replacing imports and gaining access to world markets representing a …
Grain Legume Adaptation To Soil Type, R French, M Greaves
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.
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
The Effect Of Seed Origin And Seed Phosphorus On The Growth Of Lupins, M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial: 89SC20
Location: South Carrabin Research Station, Hayden paddock.
The effects of superphosphate and fertilizer on seeds planted over a 21 week period.
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus , Seed Size And Seeding Density On The Growth Of Wheat At Two Soil P Levels., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89SC23
Location: South Carrabin
Effect of soil P, seed P and seed rate on plant counts at 5 weeks.
Shoot dry matter (DM) at tillering and heading and seed DM at maturity were strongly depressed by low soil P levels.
Effect Of Seed Phosphorus, Seed Size And Seedling Density On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Effect Of Seed Phosphorus, Seed Size And Seedling Density On The Growth Of Lupins., M. M. Riley, M. D. Bolland, K. Adcock
Experimental Summaries - Plant Research
Trial 89SC22
Location: South Carrabin Research Station, Hayden paddock.
Effect of seed phosphorus concentration, fertilizer P level, seed size and seeding rate on plant counts at 6 to 21 weeks.